Difference between revisions of "RECENT PUBLICATIONS ON FORAMINIFERA"
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| + | '''UNDER CONSTRUCTION''' | ||
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| + | == REVISED TAXONOMIC AND PHYLOGENERIC CONCEPT OF ''Globigerinoides ruber'' == | ||
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| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2"> | ||
| + | ...... The remaining two genetic types of ''G. ruber'' (white), labelled as Types IIa and IIb, represent a distinct phylogenetic lineage (''G. ruber'' sensu lato), closer related to ''Globigerinoides conglobatus''. Here we combine molecular clock and morphometric analyses to shed light on the taxonomical and phylogenetic significance of the presence of these two distinct lineages within the morphotaxon ''G. ruber''. ...... Our results suggest that specimens of Type IIa that represent the ''G. ruber'' sensu lato lineage are morphologically identical to the concept of the ''G. ruber'' sensu lato morphotype in recent literature, and that these morphotypes are consistent with the species definition of ''Globigerinoides elongatus''. We therefore propose that the name ''G. elongatus'' (sensu d'Orbigny) should be reinstated and used for the genetic Type IIa. The name ''G. ruber'' (sensu d'Orbigny) should be reserved for specimens of the pink chromotype. Specimens of Types Ia, Ib and Ib2 require new species names, but our data are not sufficient to provide a morphological character separating these species from their sister ''G. ruber'' (pink), other than by their shell colouration. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51W056T-1&_user=10&_coverDate=04%2F30%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=61c937a51cee411a3d0fbfb5ee2da42f&searchtype=a ABSTRACT]) | ||
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| + | ----Aurahs, R., Treis, Y., Darling, K., Kucera, M., 2011. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51W056T-1&_user=10&_coverDate=04%2F30%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=61c937a51cee411a3d0fbfb5ee2da42f&searchtype=a A revised taxonomic and phylogenetic concept for the planktonic foraminifer species ''Globigerinoides ruber'' based on molecular and morphometric evidence]. Marine Micropaleontology 79 (1–2), 1-14. | ||
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| + | == Mg/Ca and ∂<sup>18</sup>O in ''Hayalinea balthica'' == | ||
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| + | [[Image:G3_logo.jpg |left|80px| ]]<font size="2"> | ||
| + | Core top samples from Indonesian and northeast Atlantic depth transects were used to calibrate Mg/Ca and δ<sup>18</sup>O in tests of the calcitic benthic foraminifer ''Hyalinea balthica'' to bottom water temperature between 4°C and 13°C. This shallow infaunal species is primarily abundant in neritic to upper bathyal sediments (<600 m). Both linear and exponential calibrations suggest a temperature sensitivity of ∼12% per °C that is ∼4 times higher than observed in other species of deep-sea benthic foraminifera. Culture experiments support the core top calibration. ...... We propose that the relatively high Mg content and temperature sensitivity of H. balthica might be due to minor, biologically mediated contribution of high-Mg calcite to the primarily low Mg calcite test, which is influenced by the ambient temperature. This hypothesis, if correct, suggests that benthic species with relatively high Mg/Ca may be better suited for deepwater temperature reconstructions than species that have thus far been more commonly used. | ||
| + | <font size="2">([http://www.agu.org/pubs/crossref/2011/2010GC003333.shtml ABSTRACT]) | ||
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| + | ----Rosenthal, Y., Morley, A., Barras, C., Katz, M. E., Jorissen, F., Reichart, G-J., Oppo, D. W., Linsley, B. K., 2011. [http://www.agu.org/pubs/crossref/2011/2010GC003333.shtml Temperature calibration of Mg/Ca ratios in the intermediate water benthic foraminifer ''Hyalinea balthica'']. Geochemistry, Geophysics, Geosystems 12, Q04003, doi:10.1029/2010GC003333 | ||
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| + | == EUKARYOTIC RICHNESS IN THE ABYSS == | ||
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| + | [[Image:PLoS_ONE.jpg |left|80px| ]]<font size="2"> | ||
| + | ...... Here, we examined the richness of eukaryotic DNA in deep Arctic and Southern Ocean samples using massively parallel sequencing of the 18S ribosomal RNA (rRNA) V9 hypervariable region. ...... By clustering sequences having up to 3 differences, we observed from 942 to 1756 Operational Taxonomic Units (OTUs) per sample. Taxonomic analyses of these OTUs showed that DNA of all major groups of eukaryotes is represented at the deep-sea floor. The dinoflagellates, cercozoans, ciliates, and euglenozoans predominate, contributing to 17%, 16%, 10%, and 8% of all assigned OTUs, respectively. Interestingly, many sequences represent photosynthetic taxa or are similar to those reported from the environmental surveys of surface waters. Moreover, each sample contained from 31 to 71 different metazoan OTUs despite the small sample volume collected. This indicates that a significant faction of the eukaryotic DNA sequences likely do not belong to living organisms, but represent either free, extracellular DNA or remains and resting stages of planktonic species. ...... In view of our study, the deep-sea floor appears as a global DNA repository, which preserves genetic information about organisms living in the sediment, as well as in the water column above it. ...... | ||
| + | <font size="2">([http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0018169 ABSTRACT]) | ||
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| + | ----Pawlowski, J., Christen, R., Lecroq, B., Bachar, D., Shahbazkia, H. R., Amaral-Zettler, L., Guillou, L., 2011. [http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0018169 Eukaryotic Richness in the Abyss: Insights from Pyrotag Sequencing]. PLoS ONE 6 (4): e18169. doi:10.1371/journal.pone.0018169 | ||
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| + | == XENOPHYOPHORES FROM THE NAZARÉ CANYON == | ||
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| + | [[Image:Deep-Sea_Research_II_front.gif |left|80px| ]]<font size="2"> | ||
| + | Xenophyophores are abundant on a terrace of the lower Nazaré Canyon (4300 m water depth) on the Portuguese margin. Here, the most abundant species, ''Reticulammina cerebreformis'' sp. nov., occurs in densities of up to 21 individuals per m<sup>2</sup>. ...... The second species at the 4300-m site, ''Nazareammina tenera'' gen. et sp. nov., is much less common. ...... Also common at this deep site are clusters, with a maximum diameter up to 10 cm or occasionally more, of irregular tubes belonging to ''Aschemonella ramuliformis'' Brady 1884, a species previously known mainly from isolated tubes. ...... Almost complete SSU rDNA gene sequences obtained from ''A. ramuliformis'' and ''R. cerebreformis'' confirm that these xenophyophores are foraminifera. Together with two previously sequenced xenophophores (''Shinkaia lindsayi'' Lecroq, Gooday, Tsuchiya, Pawlowski 2009 and ''Syringammina corbicula'' Richardson 2001), and the foraminiferan ''Rhizammina algaeformis'', they constitute a clade within the radiation of monothalamous foraminifera. In situ photographs of ''R. cerebreformis'' and ''A. ramuliformis'' reveal no evidence of pseudopodia deployed onto the sediment surface. Instead, these species probably trap sediment within their complex, folded test surface (''R. cerebreformis'') or intercept suspended particles (''A. ramuliformis''). | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGC-52MS60Y-4&_user=10&_coverDate=04%2F16%2F2011&_rdoc=6&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%236035%239999%23999999999%2399999%23FLA%23display%23Articles)&_cdi=6035&_sort=d&_docanchor=&_ct=89&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8a5f52a1c037fe9996662fd464155db8&searchtype=a ABSTRACT]) | ||
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| + | ----Gooday, A. J., da Silva, A. A., Pawlowski, J., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGC-52MS60Y-4&_user=10&_coverDate=04%2F16%2F2011&_rdoc=6&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%236035%239999%23999999999%2399999%23FLA%23display%23Articles)&_cdi=6035&_sort=d&_docanchor=&_ct=89&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8a5f52a1c037fe9996662fd464155db8&searchtype=a Xenophyophores (Rhizaria, Foraminifera) from the Nazaré Canyon (Portuguese margin, NE Atlantic)]. Deep Sea Research II, doi:10.1016/j.dsr2.2011.04.005 | ||
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| + | == SARMATIAN–PANNONIAN PALAEOENVIRONMENTAL CHANGES == | ||
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| + | [[Image:GeologicaCarpathica_front.jpg |left|80px| ]]<font size="2"> | ||
| + | The Sarmatian-Pannonian transition has been investigated in Section A of Oarba de Mures in the central Transylvanian Basin. Micropaleontological assemblages are diagnostic for different environmental settings and demonstrate a clear zonation, which was used to reconstruct the genetic units. Five stratigraphic sequences were described and subdivided based on the microfossil assemblages. Transgressive intervals were documented by five-chambered and biserial planktonic foraminifera, normal regressions by assemblages with abundant mysid, dasyclads, diatoms, and benthic rotaliid foraminifera, while the forced regressions are characterized by reworking. The Sarmatian-Pannonian boundary (11.3 Ma) is clearly documented by microfossils and is calibrated with radiometric and magnetostratigraphic data. A new interpretation for the interbasinal correlation is proposed by synchronizing the top of the Central Paratethyan Sarmatian with the top of the Eastern Paratethyan Bessarabian. | ||
| + | <font size="2">([http://www.geologicacarpathica.sk/src/abstract.php?id=2011006200010091 ABSTRACT]) | ||
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| + | ----Filipescu, S., Wanek, F., Miclea, A., de Leeuw, A., Vasiliev, I., 2011. [http://www.geologicacarpathica.sk/src/abstract.php?id=2011006200010091 Micropaleontological response to the changing paleoenvironment across the Sarmatian-Pannonian boundary in the Transylvanian Basin (Miocene, Oarba de Mures section, Romania)]. Geologica Carpathica 62 (1), 91-102. | ||
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| + | == PHYLOGENY OF CENOZOIC MACROPERFORATE PLANKTONIC FORAMINIFERA == | ||
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| + | [[Image:BiologicalReviews_cover.gif|left|80px| ]]<font size="2"> | ||
| + | We present a complete phylogeny of macroperforate planktonic foraminifer species of the Cenozoic Era (∼65 million years ago to present). The phylogeny is developed from a large body of palaeontological work that details the evolutionary relationships and stratigraphic (time) distributions of species-level taxa identified from morphology (‘morphospecies’). Morphospecies are assigned to morphogroups and ecogroups depending on test morphology and inferred habitat, respectively. Because gradual evolution is well documented in this clade, we have identified many instances of morphospecies intergrading over time, allowing us to eliminate ‘pseudospeciation’ and ‘pseudoextinction’ from the record and thereby permit the construction of a more natural phylogeny based on inferred biological lineages. Each cladogenetic event is determined as either budding or bifurcating depending on the pattern of morphological change at the time of branching. This lineage phylogeny provides palaeontologically calibrated ages for each divergence that are entirely independent of molecular data. The tree provides a model system for macroevolutionary studies in the fossil record addressing questions of speciation, extinction, and rates and patterns of evolution. | ||
| + | <font size="2">([http://onlinelibrary.wiley.com/doi/10.1111/j.1469-185X.2011.00178.x/abstract ABSTRACT]) | ||
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| + | ----Aze, T., Ezard, T. H. G., Purvis, A., Coxall, H. K., Stewart, D. R. M., Wade, B. S., Pearson, P. N., in press. [http://onlinelibrary.wiley.com/doi/10.1111/j.1469-185X.2011.00178.x/abstract A phylogeny of Cenozoic macroperforate planktonic foraminifera from fossil data]. Biological Reviews, DOI: 10.1111/j.1469-185X.2011.00178.x | ||
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| + | == 20TH CENTURY BARENTS SEA WARMING == | ||
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| + | [[Image:TheHolocene_front.gif |left|80px| ]]<font size="2"> | ||
| + | ...... Climate modelling has also demonstrated that the global warming signal will be amplified in the polar region. Such temperature increases would have important implications on the ecosystem and biota of the Barents Sea. This study therefore aims to reconstruct the climatic changes of the Barents Sea based on benthic foraminifera over approximately the last 1400 years at the decadal to sub-decadal scale. Oxygen and carbon isotope analysis and benthic foraminiferal species counts indicate an overall warming trend of approximately 2.6°C through the 1400-year record. In addition, the well-documented cooling period equating to the ‘Little Ice Age’ is evident between c. 1650 and 1850. Most notably, a series of highly fluctuating temperatures are observed over the last century. An increase of 1.5°C is shown across this period. Thus for the first time we are able to demonstrate that the recent Arctic warming is also reflected in the oceanic micro-fauna. | ||
| + | <font size="2">([http://hol.sagepub.com/content/early/2011/03/06/0959683610385718.abstract?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=1&andorexacttitle=and&titleabstract=foraminifera&andorexacttitleabs=and&fulltext=foraminifera&andorexactfulltext=and&searchid=1&FIRSTINDEX=0&sortspec=date&resourcetype=HWCIT ABSTRACT]) | ||
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| + | ----Wilson, L. J., Hald, M., Godtliebsen, F., in press. [http://hol.sagepub.com/content/early/2011/03/06/0959683610385718.abstract?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=1&andorexacttitle=and&titleabstract=foraminifera&andorexacttitleabs=and&fulltext=foraminifera&andorexactfulltext=and&searchid=1&FIRSTINDEX=0&sortspec=date&resourcetype=HWCIT Foraminiferal faunal evidence of tewntieth-century Barents Sea warming]. The Holocene, doi:10.1177/0959683610385718 | ||
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| + | == CLIMATE CHANGE, SPECIES ECOLOGY & EVOLUTIONARY DYNAMICS == | ||
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| + | [[Image:Science_front.jpg|left|80px| ]]<font size="2"> | ||
| + | Ecological change provokes speciation and extinction, but our knowledge of the interplay among the biotic and abiotic drivers of macroevolution remains limited. Using the unparalleled fossil record of Cenozoic macroperforate planktonic foraminifera, we demonstrate that macroevolutionary dynamics depend on the interaction between species’ ecology and the changing climate. This interplay drives diversification but differs between speciation probability and extinction risk: Speciation was more strongly shaped by diversity dependence than by climate change, whereas the reverse was true for extinction. Crucially, no single ecology was optimal in all environments, and species with distinct ecologies had significantly different probabilities of speciation and extinction. The ensuing macroevolutionary dynamics depend fundamentally on the ecological structure of species’ assemblages. | ||
| + | <font size="2">([http://www.sciencemag.org/content/332/6027/349.abstract?sid=293572d2-f38a-460b-a8be-1c646453fd6b ABSTRACT]) | ||
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| + | ----Ezard, T. H. G., Aze, T., Pearson, P. N., Purvis, A., 2011. [http://www.sciencemag.org/content/332/6027/349.abstract?sid=293572d2-f38a-460b-a8be-1c646453fd6b Interplay Between Changing Climate and Species’ Ecology Drives Macroevolutionary Dynamics]. Science 332 (6027), 349–351. | ||
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| + | == FORAMINIFERA IN A CORAL REEF AQUARIUM == | ||
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| + | [[Image:JFR_cover.gif |left|80px| ]]<font size="2"> | ||
| + | Live (rose Bengal-stained) benthic foraminifera were studied from one of the largest coral reef aquaria in the world (Burgers’ Ocean, Arnhem, the Netherlands). Benthic foraminifera were unintentionally transported to the aquarium with live rock (i.e., natural reef substratum) from Java and Bali (Indonesia) during initial setup in 2000. After eight years and stabilization of the water chemistry, the foraminifera were found to have successfully colonized this artificial environment. Fifty benthic foraminiferal taxa (>125 µm) were identified in samples from the various subenvironments within the aquarium. The ecological conditions in the aquarium appeared to be optimal for both symbiont-bearing foraminifera and hermatypic corals. Among the four symbiontic foraminiferal species identified, ''Heterostegina depressa'' was the most abundant and it was dominant in all samples. Overall, foraminiferal densities in the aquarium were relatively high compared to those in the natural environment emulated. Although foraminifera are not generally recognized as inhabitants of saltwater aquaria, they can play an important ecological role in this type of closed environment. | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/cgi/content/abstract/41/2/101 ABSTRACT]) | ||
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| + | ----Ernst, S., Janse, M., Renema, W., Kouwenhoven, T., Goudeau, M-L., Reichart, G-J., 2011. [http://jfr.geoscienceworld.org/cgi/content/abstract/41/2/101 Benthic foraminifera in a large Indo-Pacific coral reef aquarium]. The Journal of Foraminiferal Research 41 (2), 101-113. | ||
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| + | == SPATIAL HOMOGENEITY OF SALT-MARSH FORAMINIFERA == | ||
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| + | [[Image:JFR_cover.gif |left|80px| ]]<font size="2"> | ||
| + | We collected replicate samples at stations placed systematically along a transect at Oregon Inlet (North Carolina, USA) to investigate spatial homogeneity of dead assemblages of salt-marsh foraminifera. ...... As expected, ANOVA’s on all species indicated significant differences among low-, middle-, and high-marsh zones defined by their flora. No significant differences were found between stations in the low- and high-marsh indicating homogeneity in these zones. In contrast, for all six species in the middle-marsh zone, significant outcomes for ANOVA, cluster analysis and post-hoc comparisons suggested that the middle-marsh should be divided into two zones. In addition, two species exhibited a patchy (inhomogeneous) distribution among all stations in the middle marsh. If confirmed by additional studies, our results indicate that sampling of modern salt-marshes to document the distribution of foraminifera for use in sea-level reconstructions should recognize the spatial variability associated with the middle-marsh floral zone. | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/cgi/content/abstract/41/2/114 ABSTRACT]) | ||
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| + | ----Kemp, A. C., Buzas, M. A., Horton, B. P., Culver, S. J., 2011. [http://jfr.geoscienceworld.org/cgi/content/abstract/41/2/114 Influence of patchiness on modern salt-marsh foraminifera used in sea-level studies (North Carolina, USA)]. The Journal of Foraminiferal Research 41 (2), 114-123. | ||
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| + | == ECOLOGICAL DISTRIBUTION IN A TIDAL LAGOON–BRACKISH LAKE == | ||
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| + | [[Image:JFR_cover.gif |left|80px| ]]<font size="2"> | ||
| + | The shallow subtidal to intertidal sandy mudflats of an unusual, 6 km<SUP>2</SUP>, alternating tidal lagoon–brackish lake (Lake Onoke, New Zealand) has a remarkably consistent foraminiferal fauna dominated (>80%) by ''Miliammina fusca''. During intervals when the gravel barrier across its mouth is closed, the salinity in the lake declines and the level may rise to 1 m above the extreme astronomical tide level (EHWS) of the sea outside. A transect of samples through and above the salt marsh on the edge of Lake Onoke identifies three elevation-related foraminiferal zones: ''M. fusca'' (up to mid tide level, MSL); ''M. fusca''-''Trochamminita salsa'' (MSL to mean high water level, MHW); and ''T. salsa''-''Haplophragmoides wilberti'' (MHW to 1 m above EHWS). This is the first record of foraminiferal faunas living above EHWS in New Zealand. ...... | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/cgi/content/abstract/41/2/124 ABSTRACT]) | ||
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| + | ----Hayward, B. W., Grenfell, H. R., Sabaa, A. T., Kay, J., Clark, K., 2011. [http://jfr.geoscienceworld.org/cgi/content/abstract/41/2/124 Ecological distribution of the Foraminifera in a tidal lagoon brackish late, New Zealand, and its Holocene origins]. The Journal of Foraminiferal Research 41 (2), 124–137. | ||
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| + | == LATE JURASSIC FORAMINIFERA, OFFSHORE WESTERN AUSTRALIA == | ||
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| + | [[Image:JFR_cover.gif |left|80px| ]]<font size="2"> | ||
| + | Foraminifera are recorded from one sample dredged by RV Sonne from 4438–4049 m water depths on the southwestern margin of Wallaby Plateau, eastern Indian Ocean (25.5°S, 108.5°E). An Oxfordian/Kimmeridgian age is estimated based on the foraminiferal fauna, but it conflicts with Early Cretaceous zircon dates that suggest some recycling or mixing during dredging. The Jurassic age is significantly older than any previously known age in the region and predates age estimates for the initiation of seafloor spreading along the Western Australian margin as India departed from Australia/Antarctica during the break-up of Gondwana. ...... It is dominated by ''Conicospirillina wallabyensis'' n. sp. (Spirillinacea), ''Conorboides falveyi'' n. sp. and ''Lenticulina muensteri'' (Roemer, 1839). ...... Descriptions of taxa similar in form to ''Conicospirillina'' should be studied under crossed polars to determine whether or not the skeleton has grown in crystallographic continuity. ''Marginulina suprajurassica'' Gordon is shown to be pre-occupied. | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/cgi/content/abstract/41/2/182 ABSTRACT]) | ||
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| + | ----Quilty, P. G., 2011. [http://jfr.geoscienceworld.org/cgi/content/abstract/41/2/182 Late Jurassic foraminifera, Wallaby Plateau, offshore Western Australia]. The Journal of Foraminiferal Research 41 (2), 182–195. | ||
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| + | == RESPONCE OF BENTHIC FORAMINIFERA TO HEAVY METAL CONTAMINATION == | ||
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| + | [[Image:ChemistryandEcology.gif |left|80px| ]]<font size="2"> | ||
| + | ...... we studied foraminifera and metal concentrations in 72 marine sediment samples, collected from the inner shelf along the Sicilian coast (Gulfs of Palermo and Termini) and on the south-eastern coast of Lampedusa Island. ...... On the basis of pollution sources and foraminiferal assemblages, we recognised different zones in the Gulf of Palermo. The most polluted zones showed high metal concentrations, and low diversity of benthic foraminifera with species typical of stressed environments. By contrast, the lowest polluted zones showed a high population density and the highest percentages of epiphytes. Epiphytes were abundant where a ''Posidonia oceanica'' meadow was present and decreased in the most polluted zones. Sediments of the Gulf of Termini and Lampedusa exhibited high percentages of benthic foraminifera typical of well-oxygenated waters and low concentrations of metals, with the exception of sites located near sewage outfalls and harbour areas. Furthermore, even though deformed tests are commonly known in natural stressed environmental conditions, this study shows that in the most polluted zones, benthic foraminifera were characterised by the highest percentages of deformed individuals. | ||
| + | <font size="2">([http://www.informaworld.com/smpp/content~db=all~content=a933537921 ABSTRACT]) | ||
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| + | ----Caruso, A., Cosentino, C., Tranchina, L., Brai, M., 2011. [http://www.informaworld.com/smpp/content~db=all~content=a933537921 Supratidal foraminifera as ecological indicators in anthropically modified wetlands (Lagoon of Venice, Italy)]. Chemistry and Ecology 27 (1), 9–30. | ||
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| + | == SUPRATIDAL FORAMINIFERA IN ANTHROPICALLY MODIFIED WETLANDS== | ||
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| + | [[Image:EcologicalEngineering.gif |left|80px| ]]<font size="2"> | ||
| + | ...... In this study, the Mazzorbo artificial salt marsh, built during the second half of 1999, is considered. On its surface, 16 samples were collected along a transect line in May 2008 to verify the ecological role of this salting within the lagoon ecosystem. The sediment grain size distribution of the salt marsh reflects the dissipative role of the tide and the effect of sediment transport due to the wave and tidal action. However, the presence of only a few ''Trochammina'' individuals shows that the foraminiferal fauna did not recognise this morphology as a salt marsh. The lack of ''Trochammina'' colonisation can be related to the excessive elevation of the salt marsh surface. This hypothesis is confirmed by the lack of the salt-tolerant plant ''Spartina''. The unsuccessful colonisation by the foraminifera seems to indicate that this artificial salting does not have the natural dynamism of the intertidal morphologies and it may only be classified as land recovery. The supratidal foraminiferal taxa can act as an ecological indicator: through their observation it is possible to verify whether an artificial salt marsh accomplishes its task of functioning as an ecological unit with the community of organisms. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VFB-52HB0CS-2&_user=10&_coverDate=03%2F31%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=5c4f1fadd008994974c7f778ee5692ec&searchtype=a ABSTRACT]) | ||
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| + | ----Serandrei-Barbero, R., Donnici, S., Madriardo, F., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VFB-52HB0CS-2&_user=10&_coverDate=03%2F31%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=5c4f1fadd008994974c7f778ee5692ec&searchtype=a Supratidal foraminifera as ecological indicators in anthropically modified wetlands (Lagoon of Venice, Italy)]. Ecological Engineering, doi:10.1016/j.ecoleng.2011.02.009 | ||
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| + | == CARBONIFEROUS-PERMIAN BIOSTRATIGRAPHY AND PALAEOBIOGEOGRAPHY== | ||
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| + | [[Image:RevueDeMicropaleontologie_front.gif|left|80px| ]]<font size="2"> | ||
| + | Shallow-marine limestones associated to a Palaeotethyan seamount in the Teke Dere unit of the Tavas Nappe (Lycian Nappes, SW Turkey) are essentially latest Moscovian-Kasimovian in age. The wide range of microfauna and -flora of the series show biogeographic affinities comparable to those from the northern Palaeotethyan borders (especially to assemblages from the Carnic Alps, Urals, Donbass and Darvaz). These biogeographic affinities seem to persist until the end of the Early Permian (Artinskian). The Middle Permian fauna is represented by the typical warm, tropical assemblages known at the same time in the Palaeotethys (NW Caucasus, Darvaz, south China, Primorie and Japan), and in the Neotethys (Transcaucasia, central Iran, southern Afghanistan and Sibumasu). The new Kasimovian algae and incertae sedis ''Novantiellopsis elliottii'' n. gen. n. sp., ''Uvanellopsis fluegelii'' n. gen. n. sp., ''Tubiphytes rauzerae'' n. sp. and ''Asselodiscus davydovi'' n. sp. are described. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7587-52HB0KB-1&_user=10&_coverDate=03%2F31%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=c113cefbaf4d08c91e4b6e8b5aee5337&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ----Vachard, D., Moix, P., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7587-52HB0KB-1&_user=10&_coverDate=03%2F31%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=c113cefbaf4d08c91e4b6e8b5aee5337&searchtype=a Late Pennsylvanian to Middle Permian revised algal and foraminiferan biostratigraphy and palaeobiogeography of the Lycian Nappes (SW Turkey): Palaeogeographic implications]. Revue de Micropaléontologie, doi:10.1016/j.revmic.2011.02.002 | ||
| + | |||
| + | |||
| + | |||
| + | == ''G. menardii cultrata''/''N. dutertrei'' ratio and ∂<sup>18</sup>O == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2"> | ||
| + | Core-top samples from the eastern tropical Pacific (10°N to 20°S) were used to test whether the ratio between ''Globorotalia menardii cultrata'' and ''Neogloboquadrina dutertrei'' abundance (R<sub>c/d</sub>) and the oxygen isotope composition (δ<sup>18</sup>O) of planktonic foraminifera can be used as proxies for the latitudinal position of the Equatorial Front. Specifically, this study compares the δ<sup>18</sup>O values of eight species of planktonic foraminifera (''Globigerinoides ruber'' sensu stricto (ss) and sensu lato (sl), ''Globigerinoides sacculifer'', ''Globigerinoides triloba'', ''Pulleniatina obliquiloculata'', ''Neogloboquadrina dutertrei'', ''Globorotalia menardii menardii'', ''Globorotalia menardii cultrata'' and ''Globorotalia tumida'') with the seasonal hydrography of the region, and evaluates the application of each species or combination of species for paleoceanographic reconstructions. ...... | ||
| + | '''Research Highlights''' | ||
| + | ► This study deals with the micropaleontological location of the equatorial front. ► Abundance ratios of ''G. cultratal'' ''N. dutertrei'' track the EF latitudinal position. ► Δδ<sup>18</sup>O<sub>''G.tumida''-''G.ruber''</sub> and Δδ<sup>18</sup>O<sub>''G.tumida''-''P.obliquiloculata''</sub> are also good proxies. ► Reconstruction of the EF based on single species Δδ<sup>18</sup>O can be achieved by mapping. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51WN8WC-1&_user=10&_coverDate=04%2F30%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e189a8ec1d59387e4d0c472b9b35530f&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ----Rincón-Martinez, D., Steph, S., Lamy, F., Mix, A., Tiedemann, R., 2011. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51WN8WC-1&_user=10&_coverDate=04%2F30%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e189a8ec1d59387e4d0c472b9b35530f&searchtype=a Tracking the equatorial front in the eastern equatorial Pacific Ocean by the isotopic and faunal composition of planktonic foraminifera]. Marine Micropaleontology, Vol. 79 (1-2), 24-40. doi:10.1016/j.marmicro.2011.01.001 | ||
| + | |||
| + | |||
| + | == STABLE ISOTOPES IN MODERN PLANKTONIC FORAMINIFERA == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2"> | ||
| + | This study reports on the stable isotopic composition of modern planktonic foraminifera tests collected from plankton tows and sediment trap moorings in the northern South China Sea. Plankton tow samplings were conducted at water depths of 50, 100, and 200 m during various seasons between December 2002 and August 2008. ...... Four common and widely distributed tropical/subtropical planktonic foraminifer species, including ''Globigerinoides ruber'' (white variety), ''Globigerinoides sacculifer'' (without sac), ''Neogloboquadrina dutertrei'' and ''Pulleniatina obliquiloculata'', were analyzed for δ<sup>18</sup>O and δ<sup>13</sup>C within narrow shell size ranges and compared with the concurrent sea surface temperature (SST) and wind stress. Our results show that foraminiferal δ<sup>18</sup>O is primarily influenced by seawater temperature, while δ<sup>13</sup>C is affected by surface water nutrients, which in this region can be discerned from wind stress data. ...... | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51VRXGG-1&_user=10&_coverDate=04%2F30%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=444afc2e04c550758ce48054564461a1&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ----Lin, H-L., Sheu, D., D-D., Yang, Y., Chou, W-C., Hung, G-W., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51VRXGG-1&_user=10&_coverDate=04%2F30%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=444afc2e04c550758ce48054564461a1&searchtype=a Stable isotopes in modern planktonic foraminifera: Sediment trap and plankton tow results from the South China Sea]. Marine Micropaleontology, Vol. 79 (1-2), 15-23. doi:10.1016/j.marmicro.2010.12.002 | ||
| + | |||
| + | |||
| + | == SAME-SPECIMEN MORPHO-GENERIC ANALYSIS OF ''Truncorotalia truncatulinoides'' == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2"> | ||
| + | Genetic analyses of planktonic foraminifera have unveiled significant levels of cryptic diversity, thus calling into question the usefulness of the morphological species concept for paleoceanographic reconstructions. Here, we present single-specimen combined genetic and morphological analyses performed on living ''Truncorotalia truncatulinoides'' collected across the world oceans. A combined morphogenetic analysis allows us to (1) detect five different genetic types (Types I to V) within the morphospecies ''T. truncatulinoides'', (2) statistically analyse shape variations among these genotypes, and (3) assess the biogeographic patterns and the links between surface ocean properties and the distribution of morphological and genetic diversity within ''T. truncatulinoides''. ...... | ||
| + | '''Research Highlights''' | ||
| + | ►Same-specimen genetic and morphological analyses in the foraminifer ''T. truncatulinoides'' ►Global scale geographic distribution of the ''T. truncatulinoides'' morpho-genotypes ►Genotypes adapted to different water masses exhibit differences in shell morphology ►Morpho-genetic diversity in ''T. truncatulinoides'' can be used as a paleoceanographic proxy | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-52F6PP4-3&_user=10&_coverDate=03%2F21%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=0c058d7c86839d2cfdd646179613a7fd&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ----Quillévéré, F., Morard, R., Escarguel, G., Douady, C. J., Ujiié, Y., de Garidel-Thoron, T., de Vargas, C., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-52F6PP4-3&_user=10&_coverDate=03%2F21%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=0c058d7c86839d2cfdd646179613a7fd&searchtype=a Global scale same-specimen morpho-genetic analysis of Truncorotalia truncatulinoides: A perspective on the morphological species concept in planktonic foraminifera]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2011.03.013 | ||
| + | |||
| + | |||
| + | == CONTRIBUTIONS OF MOLECULAR PHYLOGENETICS TO FORAMINIFERAL TAXONOMY == | ||
| + | |||
| + | [[Image:ComptesRendusPalevol_cover.gif|left|80px| ]]<font size="2"> | ||
| + | Molecular phylogenetics gives new insights into the taxonomy of foraminifera, independent of their morphology. After a survey of the present knowledge on how molecular phylogeny can contribute to foraminiferal taxonomy, we present an applied example. The comparison of ribosomal DNA (rDNA) sequences belonging to the SSU (Small Subunit) and LSU (Large Subunit) genes of ''Pseudoeponides falsobeccarii'' with other similar sequences of rotaliids available in GenBank shows that this species actually belongs to the genus ''Ammonia'', because it groups inside the other ''Ammonia'' sequences instead of forming a distinct clade. Moreover, ''Ammonia falsobeccarii'' forms a clade well separated from other ''Ammonia'' phylotypes, meaning that it can be considered as a distinct species, and not as an ecophenotype of one of the other ''Ammonia'' species. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6X1G-5282PK2-1&_user=10&_coverDate=02%2F25%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=6b198550b6b1af789aae3892d4dd33c6&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ----Schweizer, M., Jorissen, F., Geslin, E., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6X1G-5282PK2-1&_user=10&_coverDate=02%2F25%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=6b198550b6b1af789aae3892d4dd33c6&searchtype=a Contributions of molecular phylogenetics to foraminiferal taxonomy: General overview and example of ''Pseudoeponides falsobeccarii'' Rouvillois, 1974]. Computes Rendus Palevol, doi:10.1016/j.crpv.2011.01.003 | ||
| + | |||
| + | |||
| + | == QUATERNATY PALEOENVIRONMENTS IN THE CENTRAL ALBEMARLE EMBAYMENT == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2"> | ||
| + | To understand the temporal and spatial variation of eustatic sea-level fluctuations, glacio-hydro-isostacy, tectonics, subsidence, geologic environments and sedimentation patterns for the Quaternary of a passive continental margin, a nearly complete stratigraphic record that is fully integrated with a three dimensional chronostratigraphic framework, and paleoenvironmental information are necessary. The Albemarle Embayment, a Cenozoic regional depositional basin in eastern North Carolina located on the southeast Atlantic coast of the USA, is an ideal setting to unravel these dynamic, interrelated processes. ...... | ||
| + | '''Research highlights''' | ||
| + | ►Foraminifera, diatoms and pollen as paleoenvironmental indicators. ►Quaternary paleoenvironments range from mid-shelf to fluvial. ►Quaternary sediments reflect eastward progradation of the shelf. ►Marginal marine deposits are preserved only in paleovalleys. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-52DC131-1&_user=10&_coverDate=03%2F17%2F2011&_alid=1682792908&_rdoc=6&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5821&_sort=d&_docanchor=&view=c&_ct=83&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=b5964474114e9bcd742afac329b63bc2&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ----Culver, S. J., Farrell, K. M., Mallinson, D. J., Willard, D. A., Horton, B. P., Riggs, S. R., Thieler, E. R., Wehmiller, J. F., Parham, P., Snyder, S. W., Hillier, C., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-52DC131-1&_user=10&_coverDate=03%2F17%2F2011&_alid=1682792908&_rdoc=6&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5821&_sort=d&_docanchor=&view=c&_ct=83&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=b5964474114e9bcd742afac329b63bc2&searchtype=a Micropaleontologic record of Quaternary paleoenvironments in the Central Albemarle Embayment, North Carolina, U.S.A.]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2011.03.004 | ||
| + | |||
| + | |||
| + | == SPECIES' DELIMITATION IN MULTIDIMENTIONAL MORPHOSPACE == | ||
| + | |||
| + | [[Image:BMC_EvolutionaryBiology_Cover.jpg|left|80px| ]]<font size="2"> | ||
| + | '''BACKGROUND''' The species is a fundamental unit of biological pattern and process, but its delimitation has proven a ready source of argument and disagreement. Here, we discuss four key steps that utilize statistical thresholds to describe the morphological variability within a sample and hence assess whether there is evidence for one or multiple species. Once the initial set of biologically relevant traits on comparable individuals has been identified, there is no need for the investigator to hypothesise how specimens might be divided among groups, nor the traits on which groups might be separated. ...... '''CONCLUSION''' By estimating variance robustly (samples containing incipient species are unlikely to be scaled optimally by means and standard deviations) and identifying thresholds relevant to a particular system rather than universal standards, the steps of the framework aim to optimize the chances of delineation without imposing pre-conceived patterns onto estimates of species limits. | ||
| + | <font size="2">([http://www.springerlink.com/content/k584606441083868/ ABSTRACT]) | ||
| + | |||
| + | ----Ezard, T. H. G., Pearson, P. N., Purvis, A., 2010. [http://www.springerlink.com/content/k584606441083868/ Algorithmic approaches to aid species' delimitation in multidimensional morphospace]. BMC Evolutionary Biology, 10 (1), 175, DOI: 10.1186/1471-2148-10-175 | ||
| + | |||
| + | |||
| + | == MICROHABITATS AND BENTHIC FORAMINIFERAL SHELL GEOCHEMISTRY == | ||
| + | |||
| + | [[Image:DeepSeaResearch_I_front.gif|left|80px| ]]<font size="2">...... A simple, broadly accepted, view is that foraminiferal species’ habitats are vertically stratified in the sediments due to general pore-water chemical gradients, which develop in response to the seabed organic carbon flux. ...... We present an alternate model in which foraminifera select for habitats within the bio-irrigation system of the sediments created by the activities of macro/meio-fauna. Our distributional and geochemical data indicate that foraminiferal species seek particular biotic associations and geochemical conditions within the complex bio-architecture of the sediments and are not tied to particular sediment depths, or the general pore-water chemistry of their apparent habitation zone. Instead, foraminifera inhabit micro-environments with steep oxic to anoxic gradients. This might account for disparities among geochemical tracers. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGB-52BGCNR-2&_user=10&_coverDate=03%2F08%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e228a1dfade9886d7f2479ee8a1fa801&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Loubere, P., Jacobson, B., Kristensen, D. K., Husum, K., Jernas, P., Richaud, M., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGB-52BGCNR-2&_user=10&_coverDate=03%2F08%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e228a1dfade9886d7f2479ee8a1fa801&searchtype=a The structure of benthic environments and the paleochemical record of foraminifera]. Deep Sea Research Part I: Oceanographic Research Papers, doi:10.1016/j.dsr.2011.02.011 | ||
| + | |||
| + | |||
| + | == SALT-MARSH FORAMINIFERA AS SEA LEVEL PROXY == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2">This paper aims to establish whether contemporary salt-marsh foraminifera from eastern Tasmanian are suitably related to elevation and can therefore be used to reconstruct past sea levels. | ||
| + | '''Research Highlights''' | ||
| + | ►Salt-marsh foraminifera can be used to reconstruct sea-level changes in Tasmania. ►Sea-level reconstructions are possible with a precision of ± 0.10 m. ►The foraminifera ''Trochamminita salsa'' and ''Trochamminita irregularis'' are distinguished. ►WA-PLS regression models are more reliable than PLS regression models. ►Sea-level reconstructions are most precise along microtidal coastlines. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-52BGCRW-1&_user=10&_coverDate=03%2F08%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=1618485ad38b288b0c2a69695bdb344d&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Callard, S. V., Gehrels, W. R., Morrison, B. V., Grenfell, H. R., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-52BGCRW-1&_user=10&_coverDate=03%2F08%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=1618485ad38b288b0c2a69695bdb344d&searchtype=a Suitability of salt-marsh foraminifera as proxy indicators of sea level in Tasmania]. Marine Micropaleontology, doi:10.1016/j.marmicro.2011.03.001 | ||
| + | |||
| + | |||
| + | == ''Orbulina'' AND ''Praeorbulina''-LIKE SPECIMENS IN LATE GLACIAL SEDIMENTS == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2">This study focuses on the exceptionally high occurrence of ''Orbulina suturalis'' and morphotypes very close to ''Praeorbulina'' in Late Glacial sediments from the Northern Arabian Sea. ...... Our study is based on the analysis of three sediment cores retrieved in the Gulf of Oman (KS01, MD04-2849, MD04-2861), covering the Late Pleistocene (last 30 ka CAL-BP). ...... One AMS <sup>14</sup>C date was obtained on a monospecific sample of ''Praeorbulina''-like specimens, giving an age of 19 CAL-ka BP, which confirms the Late Glacial age and unreworked character of this population. In this paper, we discuss the morphological similarities relating the observed ''Praeorbulina''-like specimens to the genera ''Orbulina'' and ''Praeorbulina''. We will also discuss the period of occurrence of these specimens and the potential environmental changes that may have caused their atypical morphology. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-52966X2-1&_user=10&_coverDate=03%2F02%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=191bccfdc9fc912d26df8c661f45826b&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Rossignol, L., Eynaud, F., Bourget, J., Zaragosi, S., Fontanier, C., Nadine, E-Z., Lanfumey, V., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-52966X2-1&_user=10&_coverDate=03%2F02%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=191bccfdc9fc912d26df8c661f45826b&searchtype=a High occurrence of ''Orbulina suturalis'' and “''Praeorbulina''-like specimens" in sediments of the Northern Arabian Sea during the Last Glacial Maximum]. Marine Micropaleontology, doi:10.1016/j.marmicro.2011.01.006 | ||
| + | |||
| + | |||
| + | == THE UNCERTAINTY OF TAXA RELATIVE ABUNDANCES == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2">When working with micropaleontological assemblage data it is necessary to accept that the true population can never be quantified fully. Thus, the investigator must count individuals in the hope of obtaining a representative sample and then determine the uncertainty associated with the taxa relative abundances. Such uncertainties can be obtained by assuming that the relative abundances originate from a multinomial distribution for which a confidence region can be obtained using existing statistical methods. For assemblages containing more than three taxa, however, the determination and representation of multinomial confidence regions becomes exceedingly cumbersome. Here we outline a simple method that allows diagnostic values of the multinomial confidence region to be calculated for any number of taxa. Examples of such values are the most extreme relative abundances, which allow the user to quantify the interval of a given taxon within the confidence region and the maximum/minimum values of various diversity indices. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-52966X2-2&_user=10&_coverDate=03%2F02%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=5b851aab871cad1619590fed5a430d2d&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Heslop, D., De Schepper, S., Proske, U., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-52966X2-2&_user=10&_coverDate=03%2F02%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=5b851aab871cad1619590fed5a430d2d&searchtype=a Diagnosing the uncertainty of taxa relative abundances derived from count data]. Marine Micropaleontology, doi:10.1016/j.marmicro.2011.01.007 | ||
| + | |||
| + | |||
| + | |||
| + | == ENCRUSTING FORAMINIFERA ON EXPERIMENTAL SHELLS == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2">Encrusting foraminfera that settled on experimental arrays deployed for two years in shelf (15 m-30 m), shelf edge (70 m) and slope (183-253 m) environments off the carbonate platform of Lee Stocking Island, Bahamas, were found to occur in four environmental-indicator guilds, each with common and unique encrusting species. These guilds can be used as paleobathymetric and temporal guides, indicating how long a substrate was exposed on the sea floor prior to burial. Taphonomic signatures of encrusting foraminifera also changed with depth, resulting in four foraminiferal taphofacies that varied from corrasion (dissolution and abrasion) at shallow sites to pristine tests at the deepest sites. ...... Behavioral interactions, such as overgrowth interactions, also varied with depth, and these can be used to examine depth-related paleobehavioral patterns in the past. Thus, the often overlooked encrusting foraminifera are excellent candidates for paleocommunity and paleoenvironmental analyses. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-5296759-1&_user=10&_coverDate=03%2F02%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=ab3b887e354f096ef1c03496b1fa2a88&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | RICHARDSON-WHITE, S., WALKER, S. E., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-5296759-1&_user=10&_coverDate=03%2F02%2F2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=ab3b887e354f096ef1c03496b1fa2a88&searchtype=a Diversity, taphonomy and behavior of encrusting foraminifera on experimental shells deployed along a shelf-to-slope bathymetric gradient, lee stocking island, Bahamas ]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2011.02.021 | ||
| + | |||
| + | |||
| + | == OTTNANGIAN PALAEOENVIRONMENTS IN THE ALPINE FORELAND BASIN == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2">...... The aim of this study is to explore possible explanations in order to better understand the palaeogeographic, stratigraphic and environmental setting. The study focuses on the Ottnangian (middle Burdigalian) segment of the Upper Marine Molasse in southern Germany, and includes a review of previously published data, together with new data from the borehole Stockhausen which is located between the areas of the Eastern and Western Molasse. Methods include quantitative analysis of benthic foraminiferal assemblages, qualitative studies of planktonic foraminifera and calcareous nannoplankton, as well as palaeoenvironmental considerations based on the actualistic approach. ...... | ||
| + | '''Highlights''' | ||
| + | ►The publication indicates palaeobiogeographic and palaeoenvironmental differences within the | ||
| + | North Alpine Foreland Basin during the Ottnangian. ►It is shown that specific palaeoenvironmental zones existed in the North Alpine Foreland Basin during the Ottnangian. ►Furthermore, the new data from the borehole Stockhausen provide the opportunity to correlate | ||
| + | the Ottnangian lithostratigraphic units of the Western Molasse with those from the Eastern Molasse. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-528YX78-1&_user=5813503&_coverDate=03/01/2011&_rdoc=1&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235964%239999%23999999999%2399999%23FLA%23display%23Articles)&_cdi=5964&_sort=d&_docanchor=&_ct=9&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=106e085aeb80194b2544e9a58ced9303&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Pippèrr, M., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-528YX78-1&_user=5813503&_coverDate=03/01/2011&_rdoc=1&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235964%239999%23999999999%2399999%23FLA%23display%23Articles)&_cdi=5964&_sort=d&_docanchor=&_ct=9&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=106e085aeb80194b2544e9a58ced9303&searchtype=a Characterisation of Ottnangian (middle Burdigalian) palaeoenvironments in the North Alpine Foreland Basin using benthic foraminifera - a review of the Upper Marine Molasse of southern Germany]. Marine Micropaleontology, doi:10.1016/j.marmicro.2011.02.002 | ||
| + | |||
| + | |||
| + | == LATEST CRETACEOUS FORAMINIFERA IN UPWELLING REGION == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2">The Late Cretaceous succession in Israel is part of an extensive high-productivity upwelling regime that persisted over ~ 20 m.y. in the southern margins of Tethys. ...... The main objective of this study was to reconstruct changes in surface water productivity and seafloor oxygenation during the deposition of the Oil Shale Member (OSM) and transitions with the underlying Phosphate and overlying Marl Members using high-resolution records of planktic and benthic foraminifera and total organic carbon (TOC) content. | ||
| + | '''Highlights''' | ||
| + | ►This study documents the paleoceanography of the L. Cretaceous Oil Shale, Negev Israel ►The Oil Shale Mbr (OSM) spans between 71.6 -69.85 Ma based on foraminiferal zonation ►5 benthic and planktic foraminiferal assemblages (B and P Types) were distinguished ►Upward changes in B and P Types correlate with a decrease in TOC content ►These changes mark the weakening of the L. Cretaceous Tethyan upwelling system. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-5281T78-5&_user=5813503&_coverDate=02/24/2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=4c0db06804d2eae0d1792d6ab8c02e97&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Ashckenazi-Polivoda, S., Abramovich, S., Almogi-Labin, A., Schneider-Mor, A., Feinstein, S., Püttmann, W., Berner, Z., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-5281T78-5&_user=5813503&_coverDate=02/24/2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=4c0db06804d2eae0d1792d6ab8c02e97&searchtype=a Paleoenvironments of the latest Cretaceous oil shale sequence, Southern Tethys, Israel, as an integral part of the prevailing upwelling system]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2011.02.018 | ||
| + | |||
| + | |||
| + | == RESPONSE OF EOCENE FORAMINIFERA TO VOLCANIC ASH FALL == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2">Lower Eocene sediments of the Subsilesian Unit of the Polish Carpathians contain bentonite layers that were deposited in a deep-water basinal environment. Foraminiferal assemblages occurring within the bentonites and in the surrounding shales show important differences in taxonomical composition, the proportions of ecological groups, and test composition. ...... bentonite assemblages show a test composition comprised of white fine-grained quartz, and include a greater number of juvenile forms with test abnormalities. The extent of such discrepancies is variable and depends on the thickness of the bentonite layers. ...... After each ash fall event a kill layer was formed, and settled by an opportunistic foraminiferal group dominated by specimens of the epifaunal ''Glomospira charoides'', leading to the formation of nearly monospecific foraminiferal assemblages. ...... Following the deposition of volcanic ash, a relatively quick recovery of the foraminiferal community structure took place, and changes in the foraminiferal community proceeded each time according to the same sequence. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-5276T86-2&_user=5813503&_coverDate=02/21/2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=edfa1a2f9817fd7da5a3d38a025a2186&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Waśkowska, A, in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-5276T86-2&_user=5813503&_coverDate=02/21/2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=edfa1a2f9817fd7da5a3d38a025a2186&searchtype=a Response of Early Eocene deep-water benthic foraminifera to volcanic ash falls in the Polish Outer Carpathians: Palaeocological implications]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2011.02.012 | ||
| + | |||
| + | |||
| + | == FORAMINIFERA FROM THE BLAKE RIDGE AND NEOGEN PALEOCEANOGRAPHY == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2">Carbon isotope and benthic foraminiferal data from Blake Outer Ridge, a sediment drift in the western North Atlantic (Ocean Drilling Program Sites 994 and 997, water depth ~ 2800 m), document variability in the relative volume of Southern Component (SCW) and Northern Component Waters (NCW) over the last 7 Ma. ...... Benthic foraminiferal assemblages underwent major changes when the sites were dominantly under SCW (3.6-2.4 and 1.2-0.8 Ma), coeval with the ‘Last Global Extinction’ of elongate, cylindrical deep-sea benthic foraminifera, which has been linked to cooling, increased ventilation and changes in the efficiency of the biological pump. These benthic foraminiferal turnovers were neither directly associated with changes in dominant bottom water mass nor with changes in productivity, but occurred during global cooling and increased ventilation of deep waters associated with the intensification of the NHG. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-525YPDX-1&_user=5813503&_coverDate=02/15/2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=488f356b7e9189c96085844dc25322d0&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Bhaumik, A. K., Gupta, A. K., Thomas, E., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-525YPDX-1&_user=5813503&_coverDate=02/15/2011&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=488f356b7e9189c96085844dc25322d0&searchtype=a Blake outer ridge: Late Neogene variability in Paleoceanography and deep-sea biota]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2011.02.004 | ||
| + | |||
| + | |||
| + | == EFFECT OF OCEAN ACIDIFICATION ON CALCIFICATION == | ||
| + | |||
| + | [[Image:Biogeosciences_front.jpg|left|80px| ]]<font size="2">...... Here we report results of culture experiments performed to assess the effects of ongoing ocean acidification on the calcification of symbiont-bearing reef foraminifers using a high-precision ''p''CO<sub>2</sub> control system. Living clone individuals of three foraminiferal species (''Baculogypsina sphaerulata'', ''Calcarina gaudichaudii'', and ''Amphisorus hemprichii'') were subjected to seawater at five ''p''CO<sub>2</sub> levels from 260 to 970 μatm. Cultured individuals were maintained for about 12 weeks in an indoor flow-through system under constant water temperature, light intensity, and photoperiod. After the experiments, the shell diameter and weight of each cultured specimen were measured. ...... Our findings suggest that ongoing ocean acidification might favor symbiont-bearing reef foraminifers with hyaline shells at intermediate ''p''CO<sub>2</sub> levels (580 to 770 μatm) but be unfavorable to those with either hyaline or porcelaneous shells at higher ''p''CO<sub>2</sub> levels (near 1000 μatm). | ||
| + | |||
| + | <font size="2">([http://www.biogeosciences-discuss.net/8/1809/2011/ ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Fujita, K., Hikami, M., Suzuki, A., Kuroyanagi, A., Kawahata, H.,2011. [http://www.biogeosciences-discuss.net/8/1809/2011/ Effects of ocean acidification on calcification of symbiont-bearing reef foraminifers]. Biogeosciences Discuss 8, 1809-1829 | ||
| + | |||
| + | |||
| + | == COLD-WATER CORALS AND FORAMINIFERA ON MUD VOLCANOES == | ||
| + | |||
| + | [[Image:Marine_Geology_Cover.gif|left|80px| ]]<font size="2">The Dhaka and Maya mud volcanoes (MVs), located in the Mud Diapir Province in the Western Alboran Basin along the Moroccan Coasts, were cored during the TTR-17, Leg 1 cruise. Cores were taken on the top of the volcanoes at a water depth of 370 m on the Dhaka MV (core TTR17-MS411G) and at 410 m water depth on the Maya MV (core TTR17-MS419G), respectively. ...... During the intervals of coral growth planktonic foraminiferal assemblages were dominated by ''Neogloboquadrina incompta''. The decline of coral ecosystems on the mud volcanoes is accompanied at surface by a shift from the ''N. incompta'' dominated assemblage to a ''Globorotalia inflata'' dominated assemblage, possibly reflecting more oligotrophic conditions. This shift is coeval to the passage from wet to arid conditions at the end of the African Humid Period at Maya MV. It is interpreted as an effect of an early human impact on a fragile environment, which was already stressed by desiccation at the time of the development of complex human society along the Mediterranean coasts, at Dhaka MV. | ||
| + | |||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6M-5281T6W-1&_user=5813503&_coverDate=02%2F24%2F2011&_rdoc=4&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info%28%23toc%235818%239999%23999999999%2399999%23FLA%23display%23Articles%29&_cdi=5818&_sort=d&_docanchor=&_ct=35&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=53b8255a5558b3bd6eeec641d4550221&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Margreth, S., Gennari, G., Rüggeberg, A., Comas, M. C., Pinheiro, L. M., Spezzaferri, S., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6M-5281T6W-1&_user=5813503&_coverDate=02%2F24%2F2011&_rdoc=4&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info%28%23toc%235818%239999%23999999999%2399999%23FLA%23display%23Articles%29&_cdi=5818&_sort=d&_docanchor=&_ct=35&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=53b8255a5558b3bd6eeec641d4550221&searchtype=a Growth and demise of cold-water coral ecosystems on mud volcanoes in the West Alboran Sea: The messages from the planktonic and benthic foraminifera]. Marine Geology, doi:10.1016/j.margeo.2011.02.006 | ||
| + | |||
| + | |||
| + | == EVOLUTION OF THE EARLY SCHUBERTELLID FUSULINIDS == | ||
| + | |||
| + | [[Image:App-cov.jpg|left|80px| ]]<font size="2">The types of the species belonging to the fusulinid genera ''Schubertella'' and ''Eoschubertella'' were examined from publications and type collections. ''Eoschubertella'' in general possesses all the features of ''Schubertella'' and therefore is a junior synonym of the latter. However, the concept of ''Eoschubertella'' best describes the genus ''Schubertina'' with its type species ''Schubertina curculi''. ''Schubertina'' is closely related to the newly established genus ''Grovesella'' the concept of which is emended in this paper. Besides ''Schubertella'', ''Schubertina'', and ''Grovesella'', the genera ''Mesoschubertella'', ''Biwaella'' are reviewed and three new species, ''Grovesella nevadensis'', ''Biwaella zhikalyaki'', and ''Biwaella poletaevi'', are described. The phylogenetic relationships of all Pennsylvanian–Cisuralian schubertellids are also proposed. ...... | ||
| + | |||
| + | <font size="2">([http://www.app.pan.pl/article/item/app20100026.html ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Davydov, V. I., 2011. [http://www.app.pan.pl/article/item/app20100026.html Taxonomy, nomenclature, and evolution of the early schubertellid fusulinids]. Acta Palaeontologica Polonica 56 (1), 181-194. | ||
| + | |||
| + | |||
| + | == PALEOCENE-EOCENE LARGER BENTHIC FORAMINIFERA == | ||
| + | |||
| + | [[Image:Lethaia_Cover.gif|left|80px| ]]<font size="2">The Paleocene–Early Eocene carbonate successions of the Indus Basin in Pakistan formed on the northwestern continental shelf margin of the Indian Plate in the eastern Tethys Ocean. Based on larger benthic foraminifera (LBF), eight Tethyan foraminiferal biozones (SBZ1–SBZ8) spanning the Paleocene to Early Eocene interval are identified. ...... The absence of ''Nummulites'' from the earliest Eocene of Pakistan and rarity of ''Alveolina'', elsewhere used as the prime marker for the base of the Eocene, may imply biogeographical barriers between east and west Tethys, perhaps caused by the initial stages of India-Asia collision. Later, at the level of the Eocene SBZ8 Biozone, faunal links were re-established and many foraminifera with west Tethys affinities appeared in east Tethys, suggesting the barriers to migration ceased. | ||
| + | |||
| + | <font size="2">([http://onlinelibrary.wiley.com/doi/10.1111/j.1502-3931.2010.00247.x/abstract ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Afzal, J., Williams, M., Leng, M. J., Aldridge, R. J., Stephenson, M. H., 2010. [http://onlinelibrary.wiley.com/doi/10.1111/j.1502-3931.2010.00247.x/abstract Evolution of Paleocene to Early Eocene larger benthic foraminifer assemblages of the Indus Basin, Pakistan]. Lethaia, DOI: 10.1111/j.1502-3931.2010.00247.x | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == PaleoBase: DEEP-SEA BENTHIC FORAMINIFERA == | ||
| + | |||
| + | [[Image:PaleoBase.jpg|left|80px| ]]<font size="2">''PaleoBase: Deep-Sea Benthic Foraminifera'' presents the latest taxonomic revision for 300 species in the form of an illustrated, state-of-the-art relational database. Relying primarily on material collected by the Deep-Sea Drilling Project (DSDP) and Ocean Drilling Programme (ODP) for examples of characteristic deep-sea species, and containing over 1,000 colour, digital composite illustrations of unprecendented accuracy, this database represents a significant step forward in the presentation of systematic information in general, and microfossil systematics in particular. For this first time, consistent and reliable information for each species morphology, taxonomy, synonymy, bathymetery, paleoecology, chronostratigraphy, biostratigraphy is summarized in one place and in a searchable format. In addition, the database contains a morphological key for each species and citations to over 350 references from the primary scientific literature. | ||
| + | |||
| + | <font size="2">([http://eu.wiley.com/WileyCDA/WileyTitle/productCd-1405103035,descCd-description.html DESCRIPTION OF SOFTWARE]) | ||
| + | |||
| + | ---- | ||
| + | Holbourn, A., Henderson, A., May 2011. [http://eu.wiley.com/WileyCDA/WileyTitle/productCd-1405103035,descCd-description.html PaleoBase: Deep Sea Benthic Foraminifera] [Software]. Wiley-Blackwell. | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == SYSTEMATIC COLLECTIONS AT ICP OF ECOPETROL S.A. == | ||
| + | |||
| + | [[Image:RevistaEspanola_Cover.jpeg|left|80px| ]]<font size="2">...... In order to standardise the taxonomy and preserve all the generated knowledge, the Colombian Petroleum Institute (ICP) of ECOPETROL S.A built palynomorph and foraminiferal systematic collections comprising morphospecies from the Cretaceous to the Holocene. These collections are organised by taxa and by regional location, according to Colombian sedimentary basins. ...... the foraminiferal collection holds over 600 morphospecies of foraminifera among planktonic (35 %) and benthic forms (65%). ...... a cakephp user interface which allows to access the tool through the web. These databases contain descriptions and photomicrographs of the material deposited in them as well as of the original types. These collections are updated regularly by the curators, by means of constant revisions, discussions and improvements of preservation techniques. This material is currently not only in constant use by members of the Biostratigraphy Team at ICP and students but also by international experts, as in the case of the palynomorph collection. For these reasons, we consider our collections and their databases as effective tools to standardise the taxonomy and preserve the biostratigraphical knowledge of northern South America as well as a potential repository of new holotypes derived from future research in Colombia and adjacent areas. | ||
| + | |||
| + | <font size="2">([http://www.igme.es/INTERNET/Serv_Publicaciones/Productos.asp?Tema=4&Familia=1&TextoEspecial=Periodica:Micropaleontologia ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Espitia, D., Vargas, M. C., Arenas, J. E., Jaramillo, C. A., Rueda, M. J., Duque-Caro, H., 2010. [http://www.igme.es/INTERNET/Serv_Publicaciones/Productos.asp?Tema=4&Familia=1&TextoEspecial=Periodica:Micropaleontologia Palynomorphs and foraminifera from Colombia housed in the systematic collections of Ecopetrol-ICP]. Revista Española de Micropaleontología 42 (3), 373-380. | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == FROM PLANKTONIC FORAMINIFERA TO AFRICAN CLIMATE DYNAMICS == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2">The last 220 ka of the MD03-2705 (18 ° 05.81 'N - 21 ° 09.19' W) sedimentary sequence, retrieved off the Cape Verde islands, were investigated using a multiproxy approach. ...... | ||
| + | '''Research Highlights''' | ||
| + | This study documents the evolution of sea-surface conditions off Mauritania over the last two climatic cycles (220 ka). Sea-surface hydrological changes are discussed in the light of the regional paleoceanographic and paleoclimatic history, focussing on the links with the migration of the ITCZ, the upwelling dynamics and the evolution of the African monsoons. | ||
| + | |||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-5236R94-1&_user=5813503&_coverDate=02%2F02%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=db9294a0d178751a0a8acea3f38e85ab&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Matsuzaki, K. M. R., Eynaud, F., Malaizé, B., Grousset, F. E., Tisserand, A., Rossignol, L., Charlier, K., Jullien, E., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-5236R94-1&_user=5813503&_coverDate=02%2F02%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=db9294a0d178751a0a8acea3f38e85ab&searchtype=a Paleoceanography of the Mauritanian margin during the last two climatic cycles: from planktonic foraminifera to African climate dynamics]. Marine Micropaleontology, doi:10.1016/j.marmicro.2011.01.004 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == DATING OF LIMESTONES IN BORNEO == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2">On the basis of a combined larger benthic foraminifera, nannofossil and strontium isotope dating program we confidently re-assign muddy carbonate deposits from the Lower Kinabatangan River Area of Borneo to the Oligocene rather than the Early Miocene. High-diversity, coral-rich (> 50 species) deposits are here tightly constrained to predominately at, or just after, the Early to Late Oligocene boundary (Larger benthic foraminifera zone - Te1, Nannofossil zone - NP24, Sr isotope ages - 28.8 -27.6 Ma). This new dating potentially pushes back the start of the Indo-West Pacific Centre of Marine Diversity, at least for corals, about 5 million years earlier than previous data indicated. Our new data supports maintaining separation of the muddy carbonates (previously defined as the Lower Kinabatangan Limestones: Haile & Wong, 1965) from nearby crystalline limestones of the Gomantong Limestone Formation dated here as Early Miocene (Larger benthic foraminifera zone – Te5/earliest Tf1, Sr isotope age – 21.0 Ma). ...... The new data on the first shallow marine deposits in a long established deep marine location, and evidence for unconformities, has important implications for the regional tectonic model, in an area of hydrocarbon exploration. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-526DWWG-2&_user=5813503&_coverDate=02%2F17%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=35fd4cfd6a5f5f5be63f1584a60a82f8&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | McMonagle, L. B., Lunt, P., Wilson, M. E. J., Johnson, K. G., Manning, C., Young, J., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-526DWWG-2&_user=5813503&_coverDate=02%2F17%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=35fd4cfd6a5f5f5be63f1584a60a82f8&searchtype=a A re-assessment of age dating of fossiliferous limestones in eastern Sabah, Borneo: Implications for understanding the origins of the Indo-Pacific marine biodiversity hotspot ]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2011.02.009 | ||
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| + | <font size="4"> | ||
| + | |||
| + | == PRODUCTIVITY ACROSS THE OLIGOCENE/MIOCENE BOUNDARY == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2">The Oligocene to Miocene boundary (23 Ma) marks one of the major Cenozoic cooling steps. A corresponding but slightly lagging δ<SUP>13</SUP>C maximum in benthic foraminifer calcite of globally distributed sediment cores has been attributed to increased organic matter burial, either on land or in the oceans. To test this idea we reconstruct the organic carbon flux to the sea floor at three Atlantic Ocean Drilling Program (ODP) Sites using benthic foraminiferal accumulation rates (BFAR) and compare them with the stable isotope records. Our data show that the δ<sup>18</sup>O and δ<sup>13</sup>C maximum that characterizes the Oligocene/Miocene boundary is accompanied by a pronounced maximum in BFAR derived paleoproductivity at two of the sites. ...... These results imply that there was enhanced flux of organic matter to the ocean floor during the O/M climate transition and support that marine primary productivity may have played a role in the carbon cycle and atmospheric CO<sub>2</sub> draw-down at this time. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-525YPDX-3&_user=5813503&_coverDate=02%2F15%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=f50285625a59e29185d14a49c9d6933c&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Diester-Haass, L., Billups, K., Emeis, K., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-525YPDX-3&_user=5813503&_coverDate=02%2F15%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=f50285625a59e29185d14a49c9d6933c&searchtype=a Enhanced paleoproductivity across the Oligocene/Miocene boundary as evidenced by benthic foraminiferal accumulation rates]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2011.02.006 | ||
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| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == DETECTION OF FORAMINIFERA BY CATHODOLUMINESCENCE == | ||
| + | |||
| + | [[Image:Facies_Cover.jpg|left|80px| ]]<font size="2">Cathodoluminescence (CL) studies of Lower–Middle Oxfordian marls and limestones, as well as clasts from the uppermost Turonian–?Early Coniacian conglomerates of the Cracow Upland (southern Poland), reveal that the CL view of foraminifers from some lithologies differs from that in transmitted light. ...... These results indicate a strong influence of lithology and diagenesis and rather minor effects of shell structure on luminescence of microfossils. The CL technique can be a useful tool in the detection and documentation of abundance patterns of foraminifers that are poorly preserved under transmitted light. | ||
| + | <font size="2">([http://www.springerlink.com/content/u10g1225hj21u748/ ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Kołodziej, B., Jurkowska, A., Banaś. M,. Ivanova. D., in press. [http://www.springerlink.com/content/u10g1225hj21u748/ Improving detection of foraminifera by cathodoluminescence]. Facies, DOI: 10.1007/s10347-010-0256-7 | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == BIOGEOCHEMISTRY OF FORAMINIFERAL CALCITE IN COLD SEEPS == | ||
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| + | [[Image:Applied_Geochemistry.gif|left|80px| ]]<font size="2">An extensive geochemical and biogeochemical examination of CH<sub>4</sub> seeps in the Clam Flats area of Monterey Bay provides insight into the character of relationships between seep geochemistry and benthic foraminiferal geochemistry. ...... The geochemistry of the pore fluids should be relevant to the geochemistry of the carbonate tests of living and dead foraminifera. However, a profound disequilibrium of approximately an order of magnitude occurs between the <sup>13</sup>C values of stained (cytoplasm-containing) foraminiferal carbonate and the C isotope values of ambient pore-water dissolved inorganic C. Reasons are unclear for this isotopic disequilibrium, but have important implications for interpretations of foraminiferal carbonate as a paleoenvironmental proxy. Much fine scale work is needed to fully understand the relationships between the biogeochemistry of benthic foraminifera and the geochemistry of the pore waters where they live. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDG-523V3C7-1&_user=5813503&_coverDate=02/05/2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=7b9cd67742ff730a7e546def348376b1&searchtype=a ABSTRACT]) | ||
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| + | ---- | ||
| + | Gieskes, J., Rathburn, A. E., Martin, J. B., Pérez, M. E., Mahn, C., Bernhard, J. M., Day, S., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDG-523V3C7-1&_user=5813503&_coverDate=02/05/2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=7b9cd67742ff730a7e546def348376b1&searchtype=a Cold Seeps in Monterey Bay, California: Geochemistry of Pore Waters and Relationship to Benthic Foraminiferal Calcite]. Applied Geochemistry, doi:10.1016/j.apgeochem.2011.01.032 | ||
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| + | <font size="4"> | ||
| + | |||
| + | == HIDDEN COMPONENT OF DEEP-SEA FORAMINIFERA == | ||
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| + | [[Image:Deep-Sea_Research_II_front.gif|left|80px| ]]<font size="2">...... we analysed the foraminiferal assemblage based on ribosomal DNA sequences amplified specifically from total DNA extracted from unsieved and fine fraction (< 32 μm) of sediment samples from three sites in Southern Ocean. We obtained 392 sequences, representing 123 phylotypes of foraminifera. Over 90% of phylotypes (112) could not be assigned to any previously sequenced species or genera. Among these new phylotypes, 20 belong to the clade of multi-chambered calcareous Rotaliida and agglutinated Textulariida, while 94 branch among the radiation of monothalamous species. Many new phylotypes clustered together with other environmental foraminiferal sequences and sequences of unknown origin. Eight new lineages of environmental foraminiferal sequences (ENFOR 1-8) were distinguished. The morphology of species included in these novel lineages is unknown, but we can speculate that they are tiny, amoeboid protists present in the deep-sea sediments. Their diversity may be as high as that of better known large-sized foraminifera. Documenting this hidden component of deep-sea foraminiferal assemblages is a major challenge for the future. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGC-52540N2-2&_user=5813503&_coverDate=02/11/2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=0440cc1527326f83980c223f55a05af9&searchtype=a ABSTRACT]) | ||
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| + | ---- | ||
| + | Pawlowski, J., Fontaine, D., da Silva, A. A., Guiard, J., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGC-52540N2-2&_user=5813503&_coverDate=02/11/2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=0440cc1527326f83980c223f55a05af9&searchtype=a Novel Lineages of Southern Ocean deep-sea foraminifera revealed by environmental DNA sequencing]. Deep-Sea Research Part II, doi:10.1016/j.dsr2.2011.01.009 | ||
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| + | <font size="4"> | ||
| + | |||
| + | == GRAZING OF BENTHIC FORAMINIFERA ON BACTERIA == | ||
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| + | [[Image:Experimental_Marine_Biology_Ecology.gif|left|80px| ]]<font size="2">...... We have developed an approach that allows us to study grazing by adult specimens of the calcareous species ''Haynesina germanica'' and ''Ammonia beccarii'', and the single-chambered agglutinated species ''Psammophaga'' sp., on bacteria (''Halomonas'' sp.), pulse-chase-labelled with <sup>3</sup>H- and <sup>14</sup>C-Leucine. ...... The rate of release of <sup>3</sup>H when protozoa were incubated with the labelled bacteria indicated the predator's grazing rate; the proportion of <sup>14</sup>C found in the foraminiferal biomass and shell indicated the prey assimilation rate. All three foraminiferal species grazed bacteria at a rate of 3.2–5.7 ng C ind<sup>−1</sup> h<sup>−1</sup> depending on bacterial concentrations. About 23% of the biomass of the <sup>14</sup>C-labelled prey was most likely assimilated into foraminiferal pseudopodia, 12% was expelled in dissolved waste material, about 62% was respired and only 0.1% was incorporated into the carbonate shell. Extracellular digestion associated with pseudopodia could explain the very low proportion of the labelled food assimilated in the cell body and the significant proportion located in pseudopodial networks. These experiments also suggest that very little of the carbon ingested by adult calcareous foraminifera is incorporated into the shell. However, we cannot conclude that diet has no influence on the stable isotope composition of the shell since none of our calcareous specimens grew new chambers during the experiments. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T8F-524W805-4&_user=5813503&_coverDate=03/15/2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=0ca58d9967c37aa8015a31c8bf9740b2&searchtype=a ABSTRACT]) | ||
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| + | ---- | ||
| + | Mojtahid, M., Zubkov, M. V., Hartmann, M., Gooday, A. J., 2011. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T8F-524W805-4&_user=5813503&_coverDate=03/15/2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=0ca58d9967c37aa8015a31c8bf9740b2&searchtype=a Grazing of intertidal benthic foraminifera on bacteria: Assessment using pulse-chase radiotracing]. Journal of Experimental Marine Biology and Ecology 399 (1), 25-34. | ||
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| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == CHUUK LAGOON ATOLL (CAROLINE ISLANDS, PACIFIC OCEAN) == | ||
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| + | [[Image:NeuesJahrbuch_front.jpeg|left|80px| ]]<font size="2">The Chuuk Lagoon Atoll in the Caroline Islands system is located near the hotspot of tropical marine shallow-water diversity and adjacent to the global reef carbonate production center. It consists of a set of larger islands and smaller islets that are arranged in a triangular lagoonal atoll system surrounded by a protective reef barrier. This area constitutes an important biogeographic link between the Coral Triangle and other eastern Pacific Islands chains such as the Society, Marshall, Gilbert or Cook Islands. The Chuuk Islands also represent an area from which modern benthic foraminifera are virtually unknown. ...... Faunal comparisons of larger symbiont-bearing taxa with neighbouring biogeographic regions indicates that the foraminiferal assemblages from the Chuuk Island Lagoon represent a transitional biogeographic region between the high diverse Coral Triangle and East Pacific island chains. ...... diversity progressively drops off from the Coral Triangle towards the eastern Pacific. | ||
| + | <font size="2">([http://www.schweizerbart.de/papers/njgpa/detail/259/75594 ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Makled, W. A., Langer, M. R., 2011. [http://www.schweizerbart.de/papers/njgpa/detail/259/75594 Benthic Foraminifera from the Chuuk Lagoon Atoll System (Caroline Islands, Pacific Ocean)]. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 259 (2), 231-249. | ||
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| + | <font size="4"> | ||
| + | |||
| + | == PLANKTONIC FORAMINIFERA AS RECORDERS OF SEAWATER Ba/Ca == | ||
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| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2">Recent studies have used the Ba/Ca ratio of planktic foraminifer shells as a proxy for river run-off at oceanic sites near estuaries. Such studies assume that the Ba/Ca ratio in planktic foraminifer shells is primarily controlled by the Ba/Ca concentration of seawater and that other parameters such as salinity, temperature and pH do not compromise the primary Ba concentration relationship. Here we provide new insights from culture experiments and review published studies to confirm that environmental parameters including pH, temperature, salinity, and symbiont photosynthesis do not affect Ba substitution into planktic foraminiferal calcite. The partition coefficient for Ba in spinose planktic foraminifers is estimated as D<sub>Ba</sub> = 0.15 ± 0.05 (95% confidence limits). The same factor also seems applicable to the non-spinose genus <i>Neogloboquadrina</i> but not to specimens of the non-spinose genus <i>Globorotalia</i>. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-523M8CD-2&_user=5813503&_coverDate=02%2F04%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=058e84575a00bffb970a6d2d2264e647&searchtype=a ABSTRACT]) | ||
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| + | ---- | ||
| + | Hönisch, B., Allen, K. A., Russell, A. D., Eggins, S. M., Bijma, J., Spero, H. J., Lea, D. W., Yu, J., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-523M8CD-2&_user=5813503&_coverDate=02%2F04%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=058e84575a00bffb970a6d2d2264e647&searchtype=a Planktic foraminifers as recorders of seawater Ba/Ca]. Marine Micropaleontology, doi:10.1016/j.marmicro.2011.01.003 | ||
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| + | <font size="4"> | ||
| + | |||
| + | == RELIABILITY AND GLOBAL CORRELATIONS OF <I>Globostuncana ventricosa</i> ZONE == | ||
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| + | [[Image:CretaceousResearch_front.gif|left|80px| ]]<font size="2">The reliability of the first appearance datum of <I>Globotruncana ventricosa</I> as biozonal marker for the Campanian is discussed. The taxonomy and species concept of <I>G. ventricosa</I> and of <I>Globotruncana tricarinata</I>, that has been either regarded as junior synonym of <I>Globotruncana linneiana</I> or of <I>G. ventricosa</I>, are examined to avoid misidentifications, and one species is here formally described as new, <I>Globotruncana neotricarinata</I> nov. sp. ...... Besides the known diachronous first occurrence of <I>G. ventricosa</I> in the Southern Ocean sites, results confirm the difficulty in using <I>G. ventricosa</I> as zonal marker in the tropical and subtropical areas, and the validity of the first occurrence datum of <I>C. plummerae</I> for regional and global correlations. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WD3-523M84Y-1&_user=5813503&_coverDate=02%2F04%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=3d610c77b4ede376cee08321e500c77a&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Petrizzio, M. R., Falzoni, F., Premoli Silva, I., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WD3-523M84Y-1&_user=5813503&_coverDate=02%2F04%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=3d610c77b4ede376cee08321e500c77a&searchtype=a Identification of the base of the lower-to-middle Campanian <I>Globotruncana ventricosa</I> Zone: Comments on reliability and global correlations)]. Cretaceous Research, doi:10.1016/j.cretres.2011.01.010 | ||
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| + | <font size="4"> | ||
| + | |||
| + | == SHORT-TERM WARMING EVENTS DURING THE BOREAL ALBIAN == | ||
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| + | [[Image:Geology_cover.gif|left|80px| ]]<font size="2">...... Here we present δ<SUP>18</SUP>O, δ<SUP>13</SUP>C, and Mg/Ca data for the middle to early-late Albian based on analysis of unusually well preserved “glassy” foraminifers from a clay-rich sequence drilled in the boreal Lower Saxony Basin (northwestern Germany; ~45°N paleolati- tude). Our records reveal pronounced variability in planktic δ<SUP>18</SUP>O (~1.5‰–2.5‰) on a 100 k.y. time scale that we interpret to indicate substantial changes in sea-surface temperature (to ~7 °C) and δ<SUP>18</SUP>O/salinity (to ~3 psu). Our findings attest to the climatic sensitivity of marginal basins in these boreal latitudes during the mid-Cretaceous and suggest that the heat and salt budgets of the Lower Saxony Basin were orbitally conditioned during the Albian, presumably through atmospheric or oceanic heat transport from lower latitudes where surface waters were warmer than today, in response to strong greenhouse gas forcing. | ||
| + | <font size="2">([http://geology.gsapubs.org/content/early/2011/02/03/G31606.1.abstract ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Erbacher, J., Friedrich, O., Wilson, P. A., Lehmann, J., Weiss, W., in press. [http://geology.gsapubs.org/content/early/2011/02/03/G31606.1.abstract Short-term warming events during the boreal Albian (mid-Cretaceous)]. Geology, doi: 10.1130/G31606.1 | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == ALBIAN TO TURONIAN IN THE NORTHERN WESTERN INTERIOR SEAWAY == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2">...... This study proposes a new zonation based on benthic foraminifera utilizing the reference section for the Albian to Turonian Arctic Red and Trevor formations located along the Hume River in the Peel Plateau region (Northwest Territories). A new absolute age date of 107.0 ± 1.9 Ma from a bentonite extends the biostratigraphic range of the Early Albian <I>Quadrimorphina albertensis</I> Zone into the Middle Albian. Integration of the new temporal framework with detailed sedimentological observations provides an interpretation of the dynamic depositional history for this northern region of the Western Interior Seaway (WIS). ...... In order to recognize the significant unconformity associated with the loss of Albian foraminifera and the angular unconformity observed in seismic profile, we propose the use of the Slater River Formation to describe the strata bound by the pisoidal ironstone and the first metre-plus sandstone bed marking the base of the interbedded mudstones and sandstones of the overlying Trevor Formation. The Hume River section is proposed as the type section for the Slater River Formation. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-5230R1Y-1&_user=5813503&_coverDate=02%2F01%2F2011&_rdoc=1&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235821%239999%23999999999%2399999%23FLA%23display%23Articles)&_cdi=5821&_sort=d&_docanchor=&_ct=117&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=7bb5b4c4a3c6d6687c07d6f43f8409df&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Thomson, D., Schröder-Adams, C. J., Hadlari, T., Dix, G., Davis, W. J., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-5230R1Y-1&_user=5813503&_coverDate=02%2F01%2F2011&_rdoc=1&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235821%239999%23999999999%2399999%23FLA%23display%23Articles)&_cdi=5821&_sort=d&_docanchor=&_ct=117&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=7bb5b4c4a3c6d6687c07d6f43f8409df&searchtype=a Albian to Turonian stratigraphy and palaeoenvironmental history of the northern Western Interior Sea in the Peel Plateau Region, Northwest Territories, Canada]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi: 10.1016/j.palaeo.2011.01.017 | ||
| + | |||
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| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == INTEGRATED STUDY OF MIDDLE TO UPPER ALBIAN IN FRANCE == | ||
| + | |||
| + | [[Image:CretaceousResearch_front.gif|left|80px| ]]<font size="2">An integrated study of the ammonites, inoceramid bivalves, planktonic foraminifera, calcareous nannofossils, geochemistry, stable carbon isotopes, and cyclostratigraphy is provided for the upper Middle to upper Upper Albian sucession exposed in the Col de Palluel section east of Rosans in Hautes-Alpes, France. ...... Time series analysis of the Al<sub>2</sub>O<sub>3</sub> content of the 500 m Albian sequence present in the Col de Palluel and Risou sections reveals the presence of the 20 kyr precession, 40 kyr tilt, 100 kyr short eccentricity, and 406 kyr long eccentricity cycles. Correlation using planktonic foraminiferan and nannofossil data provide a link between the Col de Palluel and Risou sections and the Italian sequence at Gubbio, and in the Piobbico core. ...... It also provides a basis for the estimation of the length of the Albian Stage at 4.12 Ma, 0.8 Ma for the early Albian, 2.84 Ma for the Middle Albian, and 3.68 Ma for the late Albian substages. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WD3-51H6YWG-1&_user=5813503&_coverDate=04%2F30%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=4c2d52f752b500833f57057df038d014&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Gale, A. S., Bown, P., Caron, M., Crampton, J., Crowhurst, S. J., Kennedy, W. J., Petrizzio, M. R., Wray, D. S. , 2011. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WD3-51H6YWG-1&_user=5813503&_coverDate=04%2F30%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=4c2d52f752b500833f57057df038d014&searchtype=a The uppermost Middle and Upper Albian succession at the Col de Palluel, Hautes-Alpes, France: An integrated study (ammonites, inoceramid bivalves, planktonic foraminifera, nannofossils, geochemistry, stable oxygen and carbon isotopes, cyclostratigraphy)]. Cretaceous Research 32 (2), 59-130. | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == BORON ISOTOPES AND B/Ca IN BENTHIC FORAMINIFERA == | ||
| + | |||
| + | [[Image:EarthPlanetarySciLetters_front.gif|left|80px| ]]<font size="2">...... We present 76 new Multi-Collector Inductively-Coupled Plasma Mass Spectrometry (MC-ICPMS) δ<sup>11</sup>B measurements on a range of benthic foraminifera from 23 late-Holocene samples from the Atlantic that reaffirm the utility of the δ<sup>11</sup>B-pH proxy. ...... Whilst in theory δ<sup>11</sup>B and B/Ca can be combined to provide a quantitative reconstruction of alkalinity and dissolved inorganic carbonate (DIC), in practice this is precluded by propagated uncertainties. δ<sup>11</sup>B data give significant constraints on foraminifera calcification mechanisms, and seem most simply explained by incorporation of B(OH)<sup>−</sup><sub>4</sub> into a HCO<sup>−</sup><sub>3</sub> pool, which is then completely incorporated in foraminiferal CaCO<sub>3</sub>. Our demonstration of the predictable variation of δ<sup>11</sup>B with pH, across a wide range of species and locations, provides confidence in the application of MC-ICPMS measurements of foraminiferal δ<sup>11</sup>B to reconstruct past changes in the ocean carbonate system. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V61-51YGH6R-1&_user=5813503&_coverDate=01%2F15%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=a924e609426fab19942b2d5e35ceb57f&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Rae, J. B. J., Foster, G. L., Schmidt, D. N., Elliott, T., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V61-51YGH6R-1&_user=5813503&_coverDate=01%2F15%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=a924e609426fab19942b2d5e35ceb57f&searchtype=a Boron isotopes and B/Ca in benthic foraminifera: Proxies for the deep ocean carbonate system]. Earth and Planetary Science Letters, doi:10.1016/j.epsl.2010.12.034 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == ECOPHYSIOLOGICAL MULTI-SPECIES MODEL == | ||
| + | |||
| + | [[Image:Biogeosciences_front.jpg|left|80px| ]]<font size="2">We present an eco-physiological model reproducing the growth of eight foraminifer species (<i>Neogloboquadrina pachyderma, Neogloboquadrina incompta, Neogloboquadrina dutertrei, Globigerina bulloides, Globigerinoides ruber, Globigerinoides sacculifer, Globigerinella siphonifera</i> and <i>Orbulina universa</i>). By using the main physiological rates of foraminifers (nutrition, respiration, symbiotic photosynthesis), this model estimates their growth as a function of temperature, light availability, and food concentration. ...... The model also correctly reproduces the relative worldwide abundance and the diversity of the eight species when compared to core tops observations both using satellite and PISCES data. This model allows prediction of the season and water depth at which each species has its highest growth potential. This offers promising perspectives for both an improved quantification of paleoceanographic reconstructions and for a better understanding of the foraminiferal role in the marine carbon cycle. | ||
| + | <font size="2">([http://www.biogeosciences-discuss.net/8/1/2011/bgd-8-1-2011.html ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Lambard, F., Labeyrie, L., Michel, E., Bopp, L., Cortijo, E., Retailleau, S., Howa, H., Jorissen, F., 2011. [http://www.biogeosciences-discuss.net/8/1/2011/bgd-8-1-2011.html Simulating the growth and distribution of planktic foraminifer using an ecophysiological multi-species model]. Biogeosciences Discuss 8, 1-49 | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == AVIAN-MEDIATED MIGRATION == | ||
| + | |||
| + | [[Image:Quaternary_International.gif|left|80px| ]]<font size="2">Late Holocene cored sediments from the Aral Sea were examined in respect of foraminiferal diversity and the tests of 4 species of foraminifera were differentiated. ...... All of the identified species from the Aral Sea belong to the Ponto-Caspian faunal complex. Another Ponto-Caspian foraminiferal species is found in the mid-Holocene sediments of Kushmurun Lake located in the Turgai Valley in the southern part of the West Siberian Lowland. ...... The water flow, however, would have been directed to the south preventing foraminiferal migration to the north. Moreover, the freshwater conditions would not have allowed foraminifers to survive. Thus, foraminifera were transported to the West Siberian lakes from the Caspian Sea or from the Aral Sea by water birds. Avian-mediated colonization of lacustrine ecosystems by foraminifera is not an exception, but a regular process. The Aral Sea was re-colonized during the Holocene several times with the aid of water birds from the Caspian Sea. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGS-4YM7FJ2-3&_user=5813503&_coverDate=01%2F01%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=013e5ee66573d11a450fce65a105e44d&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Riedel, F., Kossler, A., Tarasov, P., Wünnemann, B., 2011. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGS-4YM7FJ2-3&_user=5813503&_coverDate=01%2F01%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=013e5ee66573d11a450fce65a105e44d&searchtype=a A study on Holocene foraminifera from the Aral Sea and West Siberian lakes and its implication for migration pathways ]. Quaternary International 229 (1-2), 105-111. | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == DEEP-SEA BENTHIC FORAMINIFERA IN HARDANGERFJORD == | ||
| + | |||
| + | [[Image:EstuarineCoastalShelfScience_front.gif|left|80px| ]]<font size="2">This is the first record of live (stained) deep-sea benthic foraminifera in the 850 m deep silled Hardangerfjord ...... Estimates of organic carbon flux (~2.5 g C m<sup>−2</sup>y<sup>−1</sup>) show that the fjord-values are comparable to similar depths on the continental slope. ...... the abiotic environment of the deep basins is stable even though the deepest basins are isolated from the open deep sea by the continental shelf and sills in the outer parts of the fjord suggesting that the deep-sea species are introduced as propagules during deep water renewals. ...... Indeed, the diversity is comparable both to that of the open deep sea and that of reported macrofauna from the same sites, reflecting similar ecological status. ...... Despite some evidence of transport, no major recent disturbance due to turbidite deposition seems to have occurred and hence Hardangerfjord presents a unique environment with elements of deep-sea faunae in a land-locked setting. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-51SWG62-2&_user=5813503&_coverDate=12%2F25%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=d4edf9ec28cd452b0c9487fbd45ed802&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Alve, E., Murray, J. W., Skei, J., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-51SWG62-2&_user=5813503&_coverDate=12%2F25%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=d4edf9ec28cd452b0c9487fbd45ed802&searchtype=a Deep-sea benthic foraminifera, carbonate dissolution and species diversity in Hardangerfjord, Norway: an initial assessment]. Estuarine, Coastal and Shelf Science, doi:10.1016/j.ecss.2010.12.018 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == MAGNETITE-BEARING FORAMINIFERA FROM WEST ANTARCTICA == | ||
| + | |||
| + | [[Image:JFR_cover.gif|left|80px| ]]<font size="2">...... we discovered two species of organic-walled, monothalamous foraminifera bearing mineral particles within their cytoplasm. The particles are predominantly magnetite and titanoferous magnetite. ...... One of the species, described here as <i>Psammophaga magnetica</i> sp. nov., has an elongate organic test and mineral particles located near the aperture. According to the analyses of ...... (SSU rDNA), the species may have a panantarctic distribution and is slightly different from a similar Arctic morphotype. The second species is morphologically and genetically similar to <i>Allogromia crystallifera</i> Dahlgren, 1962 from Scandinavian fjords. ...... In several specimens of this species, we found SSU rDNA sequences closely related, but not identical, to <i>Hippocrepinella hirudinea</i> (Heron-Allen and Earland, 1932), another monothalamous foraminifer present at the same sampling site. The origin of these extraneous sequences is unclear and raises the question of authenticity of rRNA gene sequences in some foraminifera. | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/cgi/content/abstract/41/1/3 ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Pawlowski, J., Majewski, W., 2011. [http://jfr.geoscienceworld.org/cgi/content/abstract/41/1/3 MAGNETITE-BEARING FORAMINIFERA FROM ADMIRALTY BAY, WEST ANTARCTICA, WITH DESCRIPTION OF <i>PSAMMOPHAGA MAGNETICA</i>, SP. NOV.]. Journal of Foraminiferal Research 41(1), 3-13. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == PLANKTONIC TURNOVER ACROSS THE APTIAN/ALBIAN BOUNDARY INTERVAL == | ||
| + | |||
| + | [[Image:JFR_cover.gif|left|80px| ]]<font size="2">...... At Deep Sea Drilling Project (DSDP) Site 511 (southern South Atlantic), ...... the Aptian assemblage is of low diversity and species are replaced by initially one and then two very small, smooth-surfaced, thin-walled species of <i>Microhedbergella</i> n. gen. ...... The Albian record at Site 511 reveals a gradual increase in planktic foraminifera shell size and assemblage dominance, as well as the gradual evolution during the middle Albian of species characterized by a finely perforate, pustulose test. Taxa with this shell infrastructure are included in <i>Muricohedbergella</i> n. gen. A new <i>‘‘Ticinella yezoana’’</i> Partial Range Zone is erected at Site 511 for correlation of the middle-upper Albian at high latitudes. ...... Aptian species of <i>Hedbergella, Globigerinelloides,</i> and <i>Pseudoguembelitria blakenosensis</i> n. gen., n. sp. are replaced by lower Albian assemblages composed only of two minute species of <i>Microhedbergella</i>. ...... A new upper lower Albian <i>Ti. madecassiana</i> Zone is defined at Site 1049 ...... The dramatic changes in planktic foraminiferal assemblag- es across the AABI suggest major changes in carbonate chemistry, vertical stratification, or productivity in the surface mixed layer occurred during the last 1 myr of the Aptian. ...... | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/cgi/content/abstract/41/1/53 ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Huber, B. T., Leckie, R. M., 2011. [http://jfr.geoscienceworld.org/cgi/content/abstract/41/1/53 PLANKTIC FORAMINIFERAL SPECIES TURNOVER ACROSS DEEP-SEA APTIAN/ ALBIAN BOUNDARY SECTIONS]. Journal of Foraminiferal Research 41(1), 53-95. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == POPULATION RESPONSE TO FLUCTUATING INFLOW== | ||
| + | |||
| + | [[Image:JFR_cover.gif|left|80px| ]]<font size="2">Freshwater input into Texas estuaries is critical to maintaining habitat, and foraminiferal populations can provide a means for assessing the effects of natural inflow as well as mandated releases. ...... Statistical analysis of all three discharge periods shows that population density varies with flow regime. At low and low/moderate discharge there are pronounced density differences among the stations, with higher densities near river input. At high discharge, population density is high at each station. This study establishes the receptivity of foraminifera to relatively short-term changes in freshwater inflow, and highlights their value for monitoring the effects of inflow on biota in Texas estuaries. The unique geographic distribution of each species may be a characteristic that imparts species resilience through time. | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/cgi/content/abstract/41/1/14 ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Buzas-Stephens, P., Buzas, M. A., Elliot, B. A., 2011. [http://jfr.geoscienceworld.org/cgi/content/abstract/41/1/14 FORAMINIFERAL POPULATION RESPONSE TO FLUCTUATING INFLOW INTO NUECES BAY, TEXAS]. Journal of Foraminiferal Research 41(1), 14-21. | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == MARINE SHELF TO PARALIC BIOFACIES IN SPITSBERGEN == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2">The Late Triassic to Early Jurassic Kapp Toscana Group of Spitsbergen consists of mudstones, sandstones and shales deposited in offshore marine to paralic conditions in an extensive shelf embayment. The study focuses on microfossil-based biofacies features (mainly foraminifera, but also palynomorphs) combined with sedimentary and selected geochemical data, in relation to transgressive-regressive developments. The analysed material includes field logs and sediment samples originating from the Juvdalskampen section, central Spitsbergen. The benthic foraminiferal succession reveals three principal associations ...... The potential of the boron concentration as a salinity indicator is demonstrated by its co-variance with biofacies features: the boron content increases with increasing salinity. ...... | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-51S6XJV-6&_user=5813503&_coverDate=12%2F22%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=93ceb4a23db305bff640be2eef3c7a75&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Nagy, J., Hess, S., Dypvik, H., Bjærke, T., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-51S6XJV-6&_user=5813503&_coverDate=12%2F22%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=93ceb4a23db305bff640be2eef3c7a75&searchtype=a Marine shelf to paralic biofacies of Upper Triassic to Lower Jurassic deposits in Spitsbergen]. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2010.12.018 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == OXYGEN RESPIRATION RATES OF BENTHIC FORAMINIFERA == | ||
| + | |||
| + | [[Image:Experimental_Marine_Biology_Ecology.gif|left|80px| ]]<font size="2">...... Oxygen respiration rates of seventeen species of benthic foraminifera were measured using microelectrodes and calculated on the basis of the oxygen fluxes measured in the vicinity of the foraminiferal specimens. The results show a wide range of oxygen respiration rates for the different species (from 0.09 to 5.27 nl cell−1 h−1) and a clear correlation with foraminiferal biovolume showed by the power law relationship. ...... The total contribution of benthic foraminifera to the aerobic mineralisation of organic matter is estimated for the studied areas. The results suggest that benthic foraminifera play only a minor role (0.5 to 2.5%) in continental shelf environments, which strongly contrasts with their strong contribution to anaerobic organic matter mineralisation, by denitrification, in the same areas. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T8F-51F88WJ-1&_user=5813503&_coverDate=01%2F01%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=3657e7611d0b080943960ab1d465e254&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Geslin, E., Risgaard-Petersen, N., Lombard, F., Metzger, E., Langlet, D., Jorissen, F., 2011. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T8F-51F88WJ-1&_user=5813503&_coverDate=01%2F01%2F2011&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=3657e7611d0b080943960ab1d465e254&searchtype=a Oxygen respiration rates of benthic foraminifera as measured with oxygen microsensors]. Journal of Experimental Marine Biology and Ecology 396 (2), 108-114. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == FORAMINIFERA-BASED TRANSFER FUNCTION == | ||
| + | |||
| + | [[Image:Quaternary_Research_front.gif|left|80px| ]]<font size="2"> We assessed the performance of a transfer function model for sea-level studies using salt-marsh foraminiferafrom two estuaries of northern Portugal. An independent data set of 12 samples and 13 sub-fossil samples from a core were used to evaluate if reconstructions and errors derived from current models are adequate. ...... Results derived from a reconstruction of sub-fossil samples from a core indicate that high-resolution sea-level reconstructions are possible, but show that depositional environments have to be selected carefully in order to minimize the impact of possible taphonomical loss. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WPN-51PRHMM-2&_user=5813503&_coverDate=12%2F15%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=3535917adf38e5d9f70ae40bd8349d79&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Leorri, E., Fetala, F., Cearreta, A., Moreno, J., Antunes, C., Drago, T., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WPN-51PRHMM-2&_user=5813503&_coverDate=12%2F15%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=3535917adf38e5d9f70ae40bd8349d79&searchtype=a Assessing the performance of a foraminifera-based transfer function to estimate sea-level changes in northern Portugal]. Quaternary Research, doi:10.1016/j.yqres.2010.10.003 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == EVOLUTIONARY CLASSIFICATION OF WHITEINELLIDS == | ||
| + | |||
| + | [[Image:JMicro_front.gif|left|80px| ]]<font size="2"> A new genus, <I>Fingeria</I>, is recognized among the globular-chambered trochospiral planktic foraminifera of the Upper Cretaceous (upper Cenomanian–lower Campanian). It consists of two pre-existing species: <I>F. loetterlei</I> (Nauss, 1947) and <I>F. kingi</I> (Trujillo, 1960). The ornamentation consists of scattered pustules, which can often fuse to form rugosities and, occasionally, costellae, especially over the earlier chambers of the test. Meridional ornamentation pattern is occasionally developed over isolated chambers. <I>Fingeria</I> is the only lineage of the whiteinellid stock that exhibits ornamentation coarsening and preferential orientation, which can be meridional or parallel to the periphery. | ||
| + | <font size="2">([http://jm.lyellcollection.org/content/29/2/149.abstract ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Georgescu, M. D., 2010. [http://jm.lyellcollection.org/content/29/2/149.abstract Evolutionary classification of the Upper Cretaceous (Turonian–lower Campanian) planktic foraminifera with incipient meridional ornamentation]. Journal of Micropalaeontology 29, 149-161. | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == HOLOTYPES IN THE TAXONOMY OF FORAMINIFERAL MORPHOSPECIES == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2"> The claim that holotypes serve as exemplars of morphology is examined in the context of planktonic foraminiferal taxonomy. A review of some species described over the past 90 years suggests that holotypes are selected subjectively, presumably guided by authors’ conceptions of diagnostic characters. ...... Commonly, type specimens are among the earliest recognized in a taxon and are selected prior to an understanding of its biogeography. Because taxa are distributed in niches within and among water masses in the global ocean, and are quite variable, holotypes are unlikely to be suitable as taxon- wide exemplars. Yet that is their present role. Population variation is under-reported in the literature. Selection of exemplars should be based on species-wide morphometric surveys of populations. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51J368N-1&_user=5813503&_coverDate=11%2F23%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=2c525502457de235bc6066736aa23d9f&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Scott, G. H., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51J368N-1&_user=5813503&_coverDate=11%2F23%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=2c525502457de235bc6066736aa23d9f&searchtype=a Holotypes in the taxonomy of planktonic foraminiferal morphospecies]. Marine Micropaleontology, doi: 10.1016/j.marmicro.2010.11.001 | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == LIVE BENTHIC FORAMINIFERA IN A CANYON == | ||
| + | |||
| + | [[Image:DeepSeaResearch_I_front.gif|left|80px| ]]<font size="2"> Living (Rose Bengal stained) benthic foraminifera were investigated at 18 deep-sea stations sampled in the Whittard Canyon area (NE Atlantic). The stations were positioned along 4 bathymetric transects ranging from 300 to 3000 m depth...... Foraminiferal abundance was positively correlated with diffusive oxygen uptake and phytopigment concentration in the sediment. This suggests a control of organic matter fluxes on the foraminiferal communities. ...... The silty/sandy intercalations at many of the deeper canyon stations may have been rapidly deposited by fairly recent gravity flows. At station 51WB (3002m), the faunal characteristics (strong dominance, shallow infaunal microhabitats) suggest that the foraminiferal community is in an early state of ecosystem colonization after these recent sedimentation events, which would have supplied the important amounts of phytopigments. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGB-51M0N73-3&_user=5813503&_coverDate=12%2F02%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=309781537d828846e3e2058c599c8f4a&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Duros, P., Fontanier, C., Metzger, E., Pusceddu, A., Cesbron, F., de Stigter, H. C., Bianchelli, S., Danovaro, R., Jorissen, F.J., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGB-51M0N73-3&_user=5813503&_coverDate=12%2F02%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=309781537d828846e3e2058c599c8f4a&searchtype=a Live (stained) benthic foraminifera in the Whittard Canyon, Celtic margin (NE Atlantic)]. Deep–Sea Research I, doi: 10.1016/j.dsr.2010.11.008 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == CHLOROPLAST HUSBANDARY AND KLEPTOPLASTIDY IN FORAMINIFERA == | ||
| + | |||
| + | [[Image:Protist_front.gif|left|80px| ]]<font size="2"> ...... We identified the foraminiferal kleptochloroplasts using a reference phylogeny made of 87 chloroplastic sequences of known species of diatoms and brown algae. All the analyzed specimens were performing kleptoplastidy and according to our phylogenetic analyses they seem to retain exclusively chloroplasts of diatom origin. There is no apparent specificity for the type of diatom from which chloroplasts originated, however some foraminiferal species seem to accept a wider range of diatoms than others. Possibly the diversity of kleptochloroplasts depends on the type of diatoms the foraminiferans feed on. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7GX3-51M6H2C-1&_user=5813503&_coverDate=12%2F03%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=7280a8abd217e0f30079182710d64feb&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Pillet, L., de Vagras, C., Pawlowski, J., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7GX3-51M6H2C-1&_user=5813503&_coverDate=12%2F03%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=7280a8abd217e0f30079182710d64feb&searchtype=a Molecular Identification of Sequestered Diatom Chloroplasts and Kleptoplastidy in Foraminifera]. Protist, doi: 10.1016/j.protis.2010.10.001 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == THE FIDELITY OF SHELL-DERIVED δ<SUP>18</SUP>O<SUB>seawater</SUB> ESTIMATES == | ||
| + | |||
| + | [[Image:EarthPlanetarySciLetters_front.gif|left|80px| ]]<font size="2"> ...... We assess the fidelity of shell-derived δ<SUP>18</SUP>O<SUB>seawater</SUB> estimates for the surface-dwelling foraminifer <i>Globigerinoides ruber</i> (white) using an Atlantic meridional coretop transect spanning basin-scale temperature and salinity gradients. Shell-derived and observed δ<SUP>18</SUP>O<SUB>seawater</SUB> values are well correlated (r<sup>2</sup> = 0.77), but a large systematic bias is observed. Shell Mg/Ca ratios are significantly elevated above values expected from observed and isotopic calcification temperatures in the saline subtropical gyres of both hemispheres. This temperature-independent shell Mg/Ca ratio variability, termed “excess Mg/Ca”, is highly correlated with surface salinity (r<sup>2</sup> = 0.77), and the observed salinity dependence (27 ± 4%) is much higher than indicated by culture studies (6 ± 2%). ...... these results point to a strongly non-linear, positive salinity effect on shell Mg/Ca ratios that significantly affects the accuracy of SST and δ<SUP>18</SUP>O<SUB>seawater</SUB> estimates in high salinity settings (> 35). | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V61-51GHK9V-2&_user=5813503&_coverDate=12/01/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=1fab70e83f80a98674537f6366b693b3&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Arbuszewski, J., de Menocal, P., Kaplan, A., Farmer, E.C., 2010. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V61-51GHK9V-2&_user=5813503&_coverDate=12/01/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=1fab70e83f80a98674537f6366b693b3&searchtype=a On the fidelity of shell-derived δ<SUP>18</SUP>O<SUB>seawater</SUB> estimates]. Earth and Planetary Science Letters, 300 (3-4), 185-196. | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == Mg/Ca IN <i>Globorotalia inflata</i> AND <i>Globigerinoides bulloides</i> == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2"> Due to its strong gradient in salinity and small temperature gradient the Mediterranean provides an ideal setting to study the impact of salinity on the incorporation of Mg into foraminiferal tests. ......Our results provide new perspectives on reported anomalously high Mg/Ca in sedimentary foraminifera and the applicability of the Mg/Ca paleothermometry in high salinity settings, by showing that (1) part of the signal is generated by precipitation of inorganic calcite on the foraminifer test due to increased calcite saturation state of the water and (2) species with high surface-to-volume shell surfaces are potentially more affected by secondaryMg-rich calcite encrustation. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51MDSD3-1&_user=5813503&_coverDate=12%2F04%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=bfd29df32d226e195f687187b52dbee4&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | van Raden, U. J., Groeneveld, J., Raitzsch, M., Kucera, M., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51MDSD3-1&_user=5813503&_coverDate=12%2F04%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=bfd29df32d226e195f687187b52dbee4&searchtype=a Mg/Ca in the planktonic foraminifera <i>Globorotalia inflata</i> and <i>Globigerinoides bulloides</i> from Western Mediterranean plankton tow and core top samples]. Marine Micropaleontology, doi: 10.1016/j.marmicro.2010.11.002 | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == Mg/Ca, δ<sup>18</sup>O AND SALINITY IN ''Ammonia beccarii'' == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2"> Specimens of the benthic foraminifer Ammonia beccarii were cultured in the laboratory in order to determine the relation between temperature and Mg/Ca and oxygen isotope values in their tests. ......The Mg/Ca ratios in calcite increase exponentially and δ<sup>18</sup>O decreases linearly with temperature. Salinity has no significant impact on either Mg/Ca or δ<sup>18</sup>O. We show how the combination of these two parameters can be used to reconstruct seawater δ<sup>18</sup>O and temperature in shallow marine habitats. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51MDSD3-2&_user=5813503&_coverDate=12%2F04%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=b3128b44c731c854607775b21054a316&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Toyofuku, T., Suzuki, M., Suga, H., Sakai, S., Suzuki, A., Ishikawa, T., de Nooijer, L. J., Schiebel, R., Kawahata, H., Kitazato, H., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51MDSD3-2&_user=5813503&_coverDate=12%2F04%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=b3128b44c731c854607775b21054a316&searchtype=a Mg/Ca and δ<sup>18</sup>O in the brackish shallow-water benthic foraminifer <i>Ammonia ‘beccarii’</i>]. Marine Micropaleontology, doi: 10.1016/j.marmicro.2010.11.003 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == SANTONIAN-CAMPANIAN BIOSTRATIGRAPHY AND PALAEOENVIRONMENT == | ||
| + | |||
| + | [[Image:CretaceousResearch_front.gif|left|80px| ]]<font size="2"> | ||
| + | Study of an upper Santonian to upper Campanian hemipelagic succession from the southern part of the Romanian Eastern Carpathians enables us to establish an integrated biostratigraphy based on planktonic foraminifera and calcareous nannofossils and to compare this record with the agglutinated foraminiferal biozonation used for the Carpathians. ...... Benthic foraminiferal assemblages were investigated using several methods, such as agglutinated and calcareous benthic foraminiferal morphogroups, and the benthic foraminiferal oxygen index in order to determine their response to environmental parameters in the basin (correlated with sea-level maxima documented by regional sea-level curves for the Tethys). ...... The variations in tubular and deep infaunal morphotypes of agglutinated foraminifera are ascribed to varying levels of organic carbon flux. | ||
| + | <font size="2">([http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WD3-51H6YWG-2&_user=5813503&_coverDate=11%2F19%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=d2e39a8b36f8fc65505793259e7fca08&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Cetean, C. G., Balc, R., Kaminski, M. A., Filipescu, S., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WD3-51H6YWG-2&_user=5813503&_coverDate=11%2F19%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=d2e39a8b36f8fc65505793259e7fca08&searchtype=a Integrated biostratigraphy and palaeoenvironments of an upper Santonian – upper Campanian succession from the southern part of the Eastern Carpathians, Romania]. Cretaceous Research, doi: 10.1016/j.cretres.2010.11.001 | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == PALAEOZOIC FORAMINIFERA == | ||
| + | |||
| + | [[Image:RevueDeMicropaleontologie_front.gif|left|80px| ]]<font size="2"> ...... the systematics, evolution and ecological behaviour of the first mineralized Palaeozoic Foraminifera are important to discuss in order to have a clearer picture of former shallow marine environments, and finally understand their distribution through space and time. The systematics of the fossil group of Foraminifera that first developed a mineralized test remains under discussion. These early foraminifers are considered as Textulariata (as generally admitted), recrystallized Fusulinata or an independent group, sometimes called Astrorhizata. In this paper, we argue to assign the early foraminifers to the Fusulinata, and to subdivide this class into six orders: Parathuramminida, Archaediscida and Earlandiida (forming together the subclass Afusulinana n. subcl.), and Tournayellida, Endothyrida and Fusulinida (subclass Fusulinana nom. translat.). These subdivisions are discussed and linked to the first occurrences of the later classes: Miliolata, Nodosariata and Textulariata. | ||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7587-51HCRF0-1&_user=5813503&_coverDate=11/20/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=6b90d3d9bea9bc17d79deca33768cd0b&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Vachard, D., Pille, L., Gaillot, J., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7587-51HCRF0-1&_user=5813503&_coverDate=11/20/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=6b90d3d9bea9bc17d79deca33768cd0b&searchtype=a Palaeozoic Foraminifera: Systematics, palaeoecology and responses to global changes]. Revue de Micropaléontologie, doi:10.1016/j.revmic.2010.10.001 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == [[MODERN FORAMINIFERAL DISTRIBUTION AND DIVERSITY IN ATOLLS]] == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2"> Foraminifera from the coral-reef lagoons of two atolls are used to investigate the distribution and diversity of assemblages in the central Indian Ocean. Eight assemblages and 270 species of foraminifera are identified. Three assemblages are reefal and dominated by Amphistegina and Calcarina. Only one lagoon assemblage is present in both atolls, which is characterized by abundant Ammonia sp. 1 and smaller miliolid foraminifera. ...... The assemblages compare well with sedimentological characteristics, which is also reflected in their distributions. Species diversity in the Maldives appears to be higher than the western Indian Ocean region due to the stronger influence of central Indo-Pacific faunas. It is not however, as high as the central Indo-Pacific region, which may be due to lower habitat diversity. | ||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51491G4-4&_user=5813503&_coverDate=09%2F29%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=50f41151521fdeececdb3d04ca6c3afa&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Parker, J.H., Gischler, E., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-51491G4-4&_user=5813503&_coverDate=09%2F29%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=50f41151521fdeececdb3d04ca6c3afa&searchtype=a Modern foraminiferal distribution and diversity in two atolls from the Maldives, Indian Ocean]. Marine Micropaleontology, doi:10.1016/j.marmicro.2010.09.007 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == CENOZOIC TROPICAL PLANKTONIC FORAMINIFERAL BIOSTRATIGRAPHY == | ||
| + | |||
| + | [[Image:EarthScienceReview_front.gif|left|80px| ]]<font size="2"> ...... In this paper we present an amended low-latitude (tropical and subtropical) Cenozoic planktonic foraminiferal zonation. We compile 187 revised calibrations of planktonic foraminiferal bioevents from multiple sources for the Cenozoic and have incorporated these recalibrations into a revised Cenozoic planktonic foraminiferal biochronology. We review and synthesize these calibrations to both the geomagnetic polarity time scale (GPTS) of the Cenozoic and astronomical time scale (ATS) of the Neogene and late Paleogene. ...... The revised and recalibrated datums provide a major advance in biochronologic resolution and a template for future progress of the Cenozoic time scale. | ||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V62-512VTM9-1&_user=5813503&_coverDate=09/22/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=38cb124fc0666db538b51fb57d614908&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Wade, B.S., Pearson, P.N., Berggren, W.A., Pälike, H., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V62-512VTM9-1&_user=5813503&_coverDate=09/22/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=38cb124fc0666db538b51fb57d614908&searchtype=a Review and revision of Cenozoic tropical planktonic foraminiferal biostratigraphy and calibration to the geomagnetic polarity and astronomical time scale]. Earth-Science Reviews, doi:10.1016/j.earscirev.2010.09.003 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == ENVIRONMENTAL CONTROLS ON A RIVER-DOMINATED SHELF == | ||
| + | |||
| + | [[Image:J_Sea_Research_Front.gif|left|80px| ]]<font size="2">In this paper, we investigate the ecology of live (rose Bengal stained) benthic foraminifera collected at 20 stations ranging from 15 to 100 m depth in the Rhône prodelta (Gulf of Lions, NW Mediterranean). These sites were sampled in September 2006, five months after the Rhône River annual flood. Statistical analyses based on foraminiferal communities (N150 µm) divide our study area into six main biofacies directly related to environmental conditions. ...... We also compare foraminiferal faunas sampled in September 2006 with communities sampled in June 2005, one month after the Rhône River annual flood (Mojtahid et al., 2009). This comparison suggests that opportunistic species (e.g. B. aculeata, Cassidulina carinata, V. bradyana) have responded to organic matter inputs related to marine primary production in June 2005. | ||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VHH-50PVG7B-2&_user=5813503&_coverDate=08/06/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=c346fc96b5b9361f2064d467e081988d&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Goineau, A., Fontanier, C., Jorisen, F.J., Lansard, B., Buscail, R., Mouret, A., Kerervé, P., Zaragosi, S., Ernoult, E., Artéto, C., Anschutz, P., Metzger, E., Rabouille, C., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VHH-50PVG7B-2&_user=5813503&_coverDate=08/06/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=c346fc96b5b9361f2064d467e081988d&searchtype=a Live (stained) benthic foraminifera from the Rhône prodelta (Gulf of Lion, NW Mediterranean): Environmental controls on a river-dominated shelf]. Journal of Sea Research, doi:10.1016/j.seares.2010.07.007 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == THE RATE OF 20TH CENTURY SEA LEVEL RISE == | ||
| + | |||
| + | [[Image:Quaternary_Research_front.gif|left|80px| ]]<font size="2">We collected a set of surface samples from two salt marshes in the Morbihan Golfe, France to determine foraminiferal distribution patterns ...... developed a foraminifera-based transfer function using a modern training set of 36 samples and 23 species. ...... The agreement between the foraminifera-based sea level curve and the Brest tide-gauge record confirms the reliability of transfer function estimates and the validity of this methodology to extend sea level reconstructions back into the pre-instrumental period. Both instrumental and microfossil records suggest an acceleration of sea level rise during the 20th century. | ||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WPN-5172KGD-1&_user=5813503&_coverDate=10/12/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=52954afba2bff10811534624a43d7a55&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Rossi, V., Horton, B.P., Corbett, D.R., Leorri, E., Perez-Belmonte, L., Douglas, B.C., in press. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WPN-5172KGD-1&_user=5813503&_coverDate=10/12/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=52954afba2bff10811534624a43d7a55&searchtype=a The application of foraminifera to reconstruct the rate of 20th century sea level rise, Morbihan Golfe, Brittany France]. Quaternary Research, doi:10.1016/j.yqres.2010.07.017 | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == WHAT HAPPENS WHEN THE OCEAN IS OVERHEATED? == | ||
| + | |||
| + | [[Image:GAS_Bulletin.jpg|left|80px| ]]<font size="2">The global warming and major perturbation of the global carbon cycle that occurred during the Paleocene–Eocene Thermal Maximum (PETM) have been investigated in the lower bathyal–upper abyssal Alamedilla section (Spain). Geochemical anomalies and dramatic faunal changes (including the globally recognized extinction event of deep-sea benthic foraminifera and the rapid evolutionary turnover of planktic foraminifera and calcareous nannofossils) are associated with the PETM at Alamedilla....Significant changes in foraminiferal test size are documented across the PETM. | ||
| + | <font size="2">(from [http://gsabulletin.gsapubs.org/content/122/9-10/1616.abstract?sid=94064967-419e-4184-a942-f8183f09bf3c ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Alegret, L., Ortiz, S., Arenillas, I., Molina, E., 2010. [http://gsabulletin.gsapubs.org/content/122/9-10/1616.abstract?sid=94064967-419e-4184-a942-f8183f09bf3c What happens when the ocean is overheated? The foraminiferal response across the Paleocene–Eocene Thermal Maximum at the Alamedilla section (Spain)]. Geological Society of America Bulletin, Vol. 122 (9/10), 1616-1624. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == TIMOR TRIASSIC AGGLUTINATED FORAMINIFERA == | ||
| + | |||
| + | [[Image:JFR_cover.gif|left|80px| ]]<font size="2">Forty-nine species of organic-cemented siliceous agglutinated foraminifera are described from 11 different facies associations representing basinal deposits of the Triassic in Timor Leste. The facies associations containing the foraminifera range from those influenced by sediment derived from nearby carbonate banks to prodelta and delta-front associations. A survey of equivalent faunas from selected shallow-marine basins ranging from the Carboniferous to the mid-Cretaceous illustrates the conservative development through time of the siliceous agglutinated foraminifera. | ||
| + | <font size="2">(from [http://jfr.geoscienceworld.org/cgi/content/abstract/40/4/366 ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Haig, D.W. and McCartain, E., 2010. [http://jfr.geoscienceworld.org/cgi/content/abstract/40/4/366 TRIASSIC ORGANIC-CEMENTED SILICEOUS AGGLUTINATED FORAMINIFERA FROM TIMOR LESTE: CONSERVATIVE DEVELOPMENT IN SHALLOW-MARINE ENVIRONMENTS]. Journal of Foraminiferal Research, Vol. 40 (4), 366-392. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == LIVE FAUNAS ALONG A BATHYMETRICAL TRANSECT == | ||
| + | |||
| + | [[Image:RevueDeMicropaleontologie_front.gif|left|80px| ]]<font size="2">In a 10-stations bathymetrical transect in the Bay of Biscay, we observed important changes in the density, composition and microhabitats of live foraminiferal faunas from the outer continental shelf to the abyssal plain.....The foraminiferal data together with the pore water data in the sediment give evidence of the presence of a trophic gradient from very eutrophic settings at the upper continental shelf towards oligotrophic settings at the abyssal area. | ||
| + | |||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7587-4YH4985-1&_user=10&_coverDate=09%2F30%2F2010&_rdoc=4&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%2312919%232010%23999469996%232292764%23FLA%23display%23Volume)&_cdi=12919&_sort=d&_docanchor=&_ct=7&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=f732cbbbee4fcbb261c7d6add99e8cd4&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Mojtahid, M., Griveaud, C., Fontanier, C., Anschutz, P., Jorissen, F.J., 2010. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7587-4YH4985-1&_user=10&_coverDate=09%2F30%2F2010&_rdoc=4&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%2312919%232010%23999469996%232292764%23FLA%23display%23Volume)&_cdi=12919&_sort=d&_docanchor=&_ct=7&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=f732cbbbee4fcbb261c7d6add99e8cd4&searchtype=a Live benthic foraminiferal faunas along a bathymetrical transect (140–4800 m) in the Bay of Biscay (NE Atlantic)]. Revue de micropaléontologie, | ||
| + | Vol. 53, Issue 3, 139-162. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == FORAMINIFERAL RESPONSES TO ABSENCE OF FRESH PHYTODETRITUS== | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2">The study illustrates that the quality of organic material has an important impact on the composition and maintenance of some benthic foraminiferal communities, that the faunal response to reduction, or even a halt, in the supply of fresh phytodetritus, is not necessarily immediate or dramatic, and that the response depends on the trophic conditions prevailing in the area when the halt occurs. | ||
| + | |||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-508CVFK-1&_user=5813503&_coverDate=09/30/2010&_rdoc=3&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235964%232010%23999239996%232310755%23FLA%23display%23Volume)&_cdi=5964&_sort=d&_docanchor=&_ct=7&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=45ce28609d96829e489912b00c00dc34&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Alve, E., 2010. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-508CVFK-1&_user=5813503&_coverDate=09/30/2010&_rdoc=3&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235964%232010%23999239996%232310755%23FLA%23display%23Volume)&_cdi=5964&_sort=d&_docanchor=&_ct=7&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=45ce28609d96829e489912b00c00dc34&searchtype=a Benthic foraminiferal responses to absence of fresh phytodetritus: A two-year experiment]. Marine Micropaleontology, Vol. 76 (3-4), 67-75. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == ONTOGENETIC EFFECTS ON δ¹³C and δ<sup>18</sup>O == | ||
| + | |||
| + | [[Image:Marine_Micropaleontology_Front.gif|left|80px| ]]<font size="2">We determined the stable oxygen and carbon isotopic composition of live (Rose Bengal stained) tests belonging to different size classes of two benthic foraminiferal species from the Pakistan continental margin. Our data underline the necessity to base longer δ18O and δ13C isotope records derived from benthic foraminifera on size windows of 100 μm or less. This is already common practice in down-core isotopic studies of planktonic foraminifera. | ||
| + | |||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-50CVR13-1&_user=5813503&_coverDate=09/30/2010&_rdoc=5&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235964%232010%23999239996%232310755%23FLA%23display%23Volume)&_cdi=5964&_sort=d&_docanchor=&_ct=7&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=649bd3abfa34d3a55ee38aa460b0c4c4&searchtype=a ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Schumacher, S., Jorissen, F.J., Mackensen, A., Gooday, A.J., Pays, O., 2010. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCV-50CVR13-1&_user=5813503&_coverDate=09/30/2010&_rdoc=5&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235964%232010%23999239996%232310755%23FLA%23display%23Volume)&_cdi=5964&_sort=d&_docanchor=&_ct=7&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=649bd3abfa34d3a55ee38aa460b0c4c4&searchtype=a Ontogenetic effects on stable carbon and oxygen isotopes in tests of live (Rose Bengal stained) benthic foraminifera from the Pakistan continental margin]. Marine Micropaleontology, Vol. 76 (3-4), 92-103. | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == PHANEROZOIC DIVERSITY OF AGGLUTINATED FORAMINIFERA == | ||
| + | |||
| + | [[Image:App-cov.jpg|left|80px| ]]<font size="2">New diversity curves for agglutinated foraminiferal genera are presented based on the stratigraphic ranges of 764 genera distributed over the 91 Phanerozoic chronostratigraphic subdivisions given in the ICS timescale. | ||
| + | |||
| + | <font size="2">(from [http://www.app.pan.pl/article/item/app20090090.html ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Kaminski, M.A., Setoyama, E., Cetean, C.G., 2010. [http://www.app.pan.pl/article/item/app20090090.html The Phanerozoic diversity of agglutinated foraminifera: Origination and extinction rates]. Acta Palaeontologica Polonica, Vol. 55, Issue 3, 529-539. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == [[FORAMINIFERA IN SOIL]] == | ||
| + | |||
| + | [[Image:Soilforams.jpg|left|80px| ]]<font size="2">Environmental SSU rDNA-based surveys show that Foraminifera are a widespread and diverse component of soil microbial communities. Phylogenetic analysis clusters them in four groups branching among the radiation of early foraminiferal lineages. Identification of terrestrial foraminiferal species and understanding of their ecological role represent an exciting challenge for future research. | ||
| + | |||
| + | <font size="2">(from [http://onlinelibrary.wiley.com/doi/10.1111/j.1462-2920.2010.02225.x/abstract ABSTRACT]) | ||
| + | |||
| + | ---- | ||
| + | Lejzerowicz, F., Pawlowski, J., Fraissinet-Tachet, L., Marmeisse, R., 2010. [http://onlinelibrary.wiley.com/doi/10.1111/j.1462-2920.2010.02225.x/abstract Molecular evidence for widespread occurrence of Foraminifera in soils]. Environmental Microbiology, | ||
| + | Vol. 12, Issue 9. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == JURASSIC VENT FORAMINIFERA == | ||
| + | |||
| + | [[Image:App-cov.jpg|left|80px| ]]<font size="2">''Recurvoides infernus'' sp. nov., one of the oldest representatives of the superfamily Recurvoidacea (Foraminifera), is described from a black claystone overlying the manganese deposits in the Western Tatra Mountains (Poland). These manganese carbonates/silicates were laid down around a shallow−water exhalative submarine hydrothermal vent that was active in the early Toarcian. The microfossils are possibly the first described Jurassic foraminifera associated with hydrothermal vents <font size="2">(from [http://www.app.pan.pl/article/item/app20090082.html ABSTRACT]). | ||
| + | ---- | ||
| + | <font size="2">Tyszka, J., Jach, R., and Bubík, M. 2010. [http://www.app.pan.pl/article/item/app20090082.html A new vent−related foraminifer from the lower Toarcian black claystone of the Tatra Mountains, Poland]. Acta Palaeontologica Polonica 55 (2): 333–342 [http://www.app.pan.pl/archive/published/app55/app20090082.pdf '''PDF'''] | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | ==DECADAL-SCALE CHANGES IN ABYSSAL FORAMINIFERAL ASSEMBLAGES == | ||
| + | |||
| + | [[Image:Deep-Sea_Research_II_front.gif|left|80px| ]]<font size="2">Trends in the abundance, diversity and taxonomic composition of ‘live’ (rose Bengal stained) foraminiferal assemblages (0-1 cm layer, >63-µm fraction) were analysed in replicate multiple corer samples collected at the Porcupine Abyssal Plain (48˚ 50’ N, 16˚ 30’ W, 4850 m water depth) over a 13-yr period (1989-2002). Overall, the abyssal time-series revealed decadal-scale changes among shallow-infaunal foraminifera, more or less coincident with changes in the megafauna, as well as indications of shorter-term events related to seasonally-pulsed phytodetrital inputs. | ||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGC-4YCFYYD-3&_user=5813503&_coverDate=08/01/2010&_rdoc=10&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%236035%232010%23999429984%232116751%23FLA%23display%23Volume)&_cdi=6035&_sort=d&_docanchor=&_ct=14&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=7bce5606386a5d7b29a0d519979c1e4d&searchtype=a ABSTRACT]). | ||
| + | ---- | ||
| + | <font size="2">Gooday, A.J., Malzone, M.G., Bett, B.J., Lamont, P.A., 2010. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGC-4YCFYYD-3&_user=5813503&_coverDate=08/01/2010&_rdoc=10&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%236035%232010%23999429984%232116751%23FLA%23display%23Volume)&_cdi=6035&_sort=d&_docanchor=&_ct=14&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=7bce5606386a5d7b29a0d519979c1e4d&searchtype=a Decadal-scale changes in shallow-infaunal foraminiferal assemblages at the Porcupine Abyssal Plain, NE Atlantic]. Deep-Sea Research II 57, 1362-1382. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == DAN-C2 HYPERTHERMAL EVENT AT GUBBIO == | ||
| + | |||
| + | [[Image:EarthPlanetarySciLetters_front.gif|left|80px| ]]<font size="2">The Dan-C2 event is an early Danian, transient (∼100 kyr) hyperthermal episode centered at ∼65.2 Ma, which records shifts in carbon reservoirs and ocean warming in the northwestern and southeastern sectors of the Atlantic Ocean. Here we present and discuss high-resolution biochronostratigraphic and magnetic susceptibility data and geochemical records from the western Tethyan Contessa Highway section (Gubbio, Italy), which provide the first direct evidence of the Dan-C2 event beyond the Atlantic Ocean and point to the supra-regional, possibly global, significance thereof. | ||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V61-50KMVVN-2&_user=5813503&_coverDate=08/15/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=ebae2aa165c7645feea3a683b2b149fb&searchtype=a ABSTRACT]). | ||
| + | ---- | ||
| + | <font size="2">Coccioni, R., Frontalini, F., Bancala, G., Fornaciari, E., Jovane, L., Sprovieri, M., 2010. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V61-50KMVVN-2&_user=5813503&_coverDate=08/15/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=ebae2aa165c7645feea3a683b2b149fb&searchtype=a The Dan-C2 hyperthermal event at Gubbio (Italy): Global implications, environmental effects, and cause(s)]. Earth and Planetary Science Letters 297 (1-2): 298-305. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == ECOLOGICAL AND EVOLUTIONARY RESPONSE TO MECO == | ||
| + | |||
| + | [[Image:PPP_front.gif|left|80px| ]]<font size="2">The enigmatic middle Eocene climatic optimum (MECO) is a transient (∼500kyr) warming event that significantly interrupted at ∼40 Ma the long-term cooling through the middle and late Eocene, eventually resulting in establishment of permanent Antarctic ice-sheet. ...... Here we present a detailed planktonic foraminiferal analysis of the MECO interval from a marginal basin of the central-western Tethys (Alano section, northeastern Italy). ...... High-resolution quantitative analysis performed on both >38 μm and >63 μm fractions reveals pronounced and complex changes in planktonic foraminiferal assemblages indicating a strong environmental perturbation that parallels the variations of the stable isotope curves corresponding to the MECO and post-MECO intervals. | ||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-4YMPXG3-2&_user=5813503&_coverDate=06/01/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=61a9e3b2b5554e6ac560984916e63d1a&searchtype=a ABSTRACT]). | ||
| + | ---- | ||
| + | <font size="2">Luciano, V., Giusberti, L., Agnini, C., Fornaciari, E., Rio, D., Spofforth, D.J.A., Pälike, H., 2010. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6R-4YMPXG3-2&_user=5813503&_coverDate=06/01/2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=61a9e3b2b5554e6ac560984916e63d1a&searchtype=a Ecological and evolutionary response of Tethyan planktonic foraminifera to the middle Eocene climatic optimum (MECO) from the Alano section (NE Italy)]. Palaeogeography, Palaeoclimatology, Palaeoecology 292 (1-2): 82-95. | ||
| + | |||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == [[GEOCHEMICAL PROXIES IN FORAMINIFERA]] == | ||
| + | |||
| + | [[Image:JFR_cover.gif|left|80px| ]]<font size="2">We review the geochemical proxies that utilize foraminiferal carbonate tests, including potential uses of the proxies for reconstructions through time: 18O, 13C, trace elements (Mg, Cd, Ba, Zn, B, U), 87Sr/86Sr, 26Mg, 11B, and Nd. Both planktic and benthic foraminifera are included. | ||
| + | <font size="2">(from [http://jfr.geoscienceworld.org/cgi/content/abstract/40/2/165 ABSTRACT]). | ||
| + | ---- | ||
| + | <font size="2">Katz, M.E., Cramer, B.S., Franzese, A., Hönisch, B., Miller, K.G., Rosenthal, Y., Wright, J.D., 2010. [http://jfr.geoscienceworld.org/cgi/content/abstract/40/2/165 Traditional and emerging geochemical proxies in foraminifera]. Journal of Foraminiferal Research 40 (2): 165–192. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | == NITRATE STORAGE AND DENITRIFICATION == | ||
| + | |||
| + | [[Image:PNAS_front.gif|left|80px| ]]<font size="2">...... Here we show that several different and diverse foraminiferal groups (miliolids, rotaliids, textulariids) and ''Gromia'', another taxon also belonging to Rhizaria, accumulate and respire nitrates through denitrification. The widespread occurrence among distantly related organisms suggests an ancient origin of the trait. The diverse metabolic capacity of these organisms, which enables them to respire with oxygen and nitrate and to sustain respiratory activity even when electron acceptors are absent from the environment, may be one of the reasons for their successful colonization of diverse marine sediment environments. | ||
| + | <font size="2">(from [http://www.pnas.org/content/107/3/1148.full?sid=8a7c13c9-3ba7-4697-8c9a-58bf6ff0d5c2 ABSTRACT]) | ||
| + | ---- | ||
| + | Piña-Ochoa, E., Høgslund, S., Geslin, E., Cedhagen, T., Revsbech, N.P., Nielsen, L.P., Schweizer, M., Jorissen, F., Rysgaard, S., Risgaard-Petersen, N., 2010. [http://www.pnas.org/content/107/3/1148.full?sid=8a7c13c9-3ba7-4697-8c9a-58bf6ff0d5c2 Widespread occurrence of nitrate storage and denitrification among Foraminifera and ''Gromiida'']. PNAS 107 (3), 1148-1153. | ||
| + | |||
| + | |||
| + | <font size="4"> | ||
| + | |||
| + | |||
| + | == SURVIVAL OF BENTHIC FORAMINIFERAL PROPAGULES == | ||
| + | |||
| + | [[Image:J_Sea_Research_Front.gif|left|80px| ]]<font size="2">New data support our previously published propagule dispersal hypothesis and show that propagules of some benthic foraminiferal species can survive for two years before growth commences. Our results indicate substantial inter-specific differences in dispersal potential and support previous suggestions that among free-living species, some serial forms have the potential for long-distance dispersal. | ||
| + | <font size="2">(from [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VHH-4XCYJJ8-1&_user=5813503&_coverDate=01/31/2010&_rdoc=5&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%236067%232010%23999369998%231577514%23FLA%23display%23Volume)&_cdi=6067&_sort=d&_docanchor=&_ct=9&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=59e9aea6614eab0d6728f9ad08c56349&searchtype=a ABSTRACT]). | ||
| + | ---- | ||
| + | <font size="2">Alve, E., Goldstein, S.T., 2010. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VHH-4XCYJJ8-1&_user=5813503&_coverDate=01/31/2010&_rdoc=5&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%236067%232010%23999369998%231577514%23FLA%23display%23Volume)&_cdi=6067&_sort=d&_docanchor=&_ct=9&_acct=C000068454&_version=1&_urlVersion=0&_userid=5813503&md5=59e9aea6614eab0d6728f9ad08c56349&searchtype=a Dispersal, survival and delayed growth of benthic foraminiferal propagules]. Journal of Sea Research 63 (1): 36-51. | ||
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| + | |||
| + | |||
| + | |||
| + | ---- | ||
| + | |||
| + | ---- | ||
| + | |||
| + | === Transclusion test: === | ||
| + | |||
| + | {{Alve & Goldstein (2010)}} | ||
| + | |||
| + | {{MODERN FORAMINIFERAL DISTRIBUTION AND DIVERSITY IN ATOLLS}} | ||
| + | |||
| + | |||
| + | [[Test page]] | ||
