Difference between revisions of "RECENT PUBLICATIONS ON FORAMINIFERA"
| Line 2: | Line 2: | ||
<font size="4"> | <font size="4"> | ||
{{Recent Publications on Foraminifera Navigation}}<font size="2"> | {{Recent Publications on Foraminifera Navigation}}<font size="2"> | ||
| + | |||
| + | ==MIDDLE EOCENE ABYSSAL BENTHIC FORAMINIFERA IN THE EASTERN EQUATORIAL PACIFIC== | ||
| + | |||
| + | [[Image:Journal_Of_Paleontology_cover.jpg |left|80px|]]<font size="2"> | ||
| + | We report on the faunal transition of benthic foraminifera during the middle Eocene at Site U1333 (4862 m water depth, 3,560–3,720 m paleo-water depth) of Integrated Ocean Drilling Program Expedition 320 in the eastern equatorial Pacific Ocean. ...... Based on Q-mode cluster analysis, four sample clusters were recognized and their stratigraphic distributions were generally discriminated in the lower and upper parts of the study interval. Thus, there was only a small faunal transition in the abyssal eastern equatorial Pacific during the middle to late-middle Eocene. The faunal transition recognized in this study may be related to recovery processes following intense carbonate corrosiveness in the eastern equatorial Pacific during MECO. | ||
| + | <font size="2">([http://www.psjournals.org/doi/abs/10.1666/12-107 ABSTRACT]) | ||
| + | |||
| + | ----Takata, H., Nomura, R., Tsujimoto, A. and Khim, B.-K., 2013. [http://www.psjournals.org/doi/abs/10.1666/12-107 Abyssal Benthic Foraminifera in the Eastern Equatorial Pacific (IODP Exp 320) During the Middle Eocene]. Journal of Paleontology 87 (6), 1160-1185. | ||
| + | |||
| + | |||
| + | ==MOLECULAR EVIDENCE FOR LESSEPSIAN INVASION OF SORITIDS== | ||
| + | |||
| + | [[Image:PLoS_ONE.jpg|left|80px|]]<font size="2"> | ||
| + | The Mediterranean Sea is considered as one of the hotspots of marine bioinvasions, largely due to the influx of tropical species migrating through the Suez Canal, so-called Lessepsian migrants. Several cases of Lessepsian migration have been documented recently, however, little is known about the ecological characteristics of the migrating species and their aptitude to colonize the new areas. This study focused on Red Sea soritids, larger symbiont-bearing benthic foraminifera (LBF) that are indicative of tropical and subtropical environments and were recently found in the Israeli coast of the Eastern Mediterranean. We combined molecular phylogenetic analyses of soritids and their algal symbionts as well as network analysis of Sorites orbiculus Forskål to compare populations from the Gulf of Elat (northern Red Sea) and from a known hotspot in Shikmona (northern Israel) that consists of a single population of ''S. orbiculus''. ...... | ||
| + | <font size="2">([http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0077725 ABSTRACT]) | ||
| + | |||
| + | ----Merkado, G., Holzmann, M., Apothéloz-Perret-Gentil, L., Pawlowski, J., Abdu, U., Almogi-Labin, A., Hyams-Kaphzan, O., Bakhrat, A. and Abramovich, S., 2013. [http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0077725 Molecular Evidence for Lessepsian Invasion of Soritids (Larger Symbiont Bearing Benthic Foraminifera)]. PLoS ONE 8(10): e77725. doi:10.1371/journal.pone.0077725 | ||
| + | |||
| + | |||
| + | ==FLEXIBILITY IN SYMBIOTIC PARTNERSHIPS ALONG A NATURAL TEMPERATURE GRADIENT== | ||
| + | |||
| + | [[Image:MEPS_front.jpg|left|80px|]]<font size="2"> | ||
| + | Benthic foraminifera of the family Soritinae are important members of coral reef communities, contributing to carbonate deposition on coral reefs. These giant protists form photo-symbiotic associations with microalgae of the genus ''Symbiodinium''. The extent of flexibility in foraminefera-Symbiodinium partnerships is not well understood. While some studies suggest foraminifera exhibit strong specificity with regard to symbiont choice, recent work illustrated that at least a few taxa are able to host >1 symbiont type. We explored the symbiont diversity of a widely distributed soritid foraminifera (''Marginopora vertebralis''), sampling 369 individuals from 16 populations distributed across a wide latitudinal gradient (31 to 9°S) in the western Pacific Ocean using the internal transcribed spacer region 2 (ITS2) of rDNA. ...... | ||
| + | <font size="2">([http://www.int-res.com/abstracts/meps/v491/p33-46/ ABSTRACT]) | ||
| + | |||
| + | ----Momigliano, P. and Uthicke, S., 2013. [http://www.int-res.com/abstracts/meps/v491/p33-46/ Symbiosis in a giant protist (''Marginopora vertebralis'', Soritinae): flexibility in symbiotic partnerships along a natural temperature gradient]. Marine Ecology Progress Series 491, 33-46. | ||
| + | |||
| + | |||
| + | ==BENTHIC FORAMINIFERAL COMMUNITY CHANGES AND THEIR RELATIONSHIPS TO ENVIRONMENTAL DYNAMICS IN INTERTIDAL MUDDY SEDIMENTS== | ||
| + | |||
| + | [[Image:MEPS_front.jpg|left|80px|]]<font size="2"> | ||
| + | The temporal and vertical variability of live intertidal benthic foraminifera was studied in parallel to environmental variables such as porewater and overlying water nutrients, salinity, temperature, sedimentary pigments and organic carbon. ...... multivariate regression analysis for the whole community assemblage showed that the significant community composition changes over time in the surface layer could be related to fluctuations of several environmental variables, mainly those related to sediment food availability. The macroalgal bloom that occurred during the winter months had no detectable effect on benthic foraminiferal abundance or community patterns. Overall, the intertidal foraminiferal community in the Bay of Cádiz showed a highly dynamic character and a clear vertical distribution which could be effectively captured by studying the uppermost sediment layer at sub-centimetric vertical resolution. | ||
| + | <font size="2">([http://www.int-res.com/abstracts/meps/v490/p121-135/ ABSTRACT]) | ||
| + | |||
| + | ----Papaspyrou, S., Diz, P., Garcia-Robiedo, E., Corzo, A. and Jimenez-Arias, J.-L., 2013. [http://www.int-res.com/abstracts/meps/v490/p121-135/ Benthic foraminiferal community changes and their relationship to environmental dynamics in intertidal muddy sediments (Bay of Cádiz, SW Spain)]. Marine Ecology Progress Series 490, 121-135. | ||
| + | |||
| + | |||
| + | ==FORAMINIFERA AND SEQUENCE STRATIGRAPHY OF MIOCENE ON THE EASTERN SIDE OF THE GULF OF SUEZ, EGYPT== | ||
| + | |||
| + | [[Image:NeuesJahrbuch_front.jpeg|left|80px|]]<font size="2"> | ||
| + | Stratigraphical studies of Miocene exposures on the eastern side of the Gulf of Suez (Wadi Gharandal, Wadi Baba and Wadi Feiran) reveals conspicuous vertical and lateral facies variations due to syngenetic tectonic activity related to rifting. Studied samples include 88 species of foraminifera (39 planktonics and 49 benthonics). Six planktonic biozones (M2-M7) were distinguished. The sequence statigraphical investigation of the Burdigalian to Serravallian succession reveals six third-order depositional sequences, bounded by physical unconformity surfaces reflecting phases of sub-aerial exposure, deposition of alluvial fans, polymictic conglomerates, evaporites and the presence of a faunal break, which could be correlated within and outside Egypt. These sequence boundaries are primarily related to regional tectonism associated with rifting or related to eustatic sea-level fluctuations. | ||
| + | <font size="2">([http://www.schweizerbart.de/papers/njgpa/detail/268/79915/Fusulinid_zonation_of_the_Late_Moscovian_Early_Sak ABSTRACT]) | ||
| + | |||
| + | ----Heywaidy, A.G.A., Farouk, S., Ayyad, H.M., 2013.[http://www.schweizerbart.de/papers/njgpa/detail/270/81041/Foraminifera_and_sequence_stratigraphy_of_Burdigal Foraminifera and sequence stratigraphy of Burdigalian – Serravallian successions on the eastern side of the Gulf of Suez, southwestern Sinai, Egypt]. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 270(2), 151-170. | ||
| + | |||
| + | |||
| + | ==PALEOVARSOVIELLA AND PALEOVARSOVIELLINAE, NEW NAMES FOR THE FORAMINIFERAL GENUS ''Varsoviella'', AND SUBFAMILY VARSOVIELLINAE== | ||
| + | |||
| + | [[Image:JFR_cover.gif|left|80px|]]<font size="2"> | ||
| + | More than two decades ago, Gawor-Biedowa (1987) described a number of benthic foraminifers from Late Cretaceous deposits in Poland. At that time she proposed a new genus ''Varsoviella'', although this name was already preoccupied by the validly named rhabdocoel flatworm ''Varsoviella'' Gieysztor and Wiszniewski, 1947 ...... | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/content/43/4/464.extract ABSTRACT]) | ||
| + | |||
| + | ----Van Steenkiste, N. and Artois, T., 2013. [http://jfr.geoscienceworld.org/content/43/4/464.extract ''Paleovarsoviella'' and Paleovarsoviellinae, new names for the foraminiferal genus ''Varsoviella'' Gawor-Biedowa, 1987, and subfamily Varsoviellinae Gawor-Biedowa, 1987]. Journal of Foraminiferal Research 43 (4), 464. | ||
| + | |||
| + | |||
| + | ==APTIAN–ALBIAN PLANKTIC FORAMINIFERA FROM DSDP SITE 364 (OFFSHORE ANGOLA)== | ||
| + | |||
| + | [[Image:JFR_cover.gif|left|80px|]]<font size="2"> | ||
| + | This work presents a taxonomic, biostratigraphic and paleoecological study of planktic foraminifera recovered from the Aptian–Albian carbonate-dominated succession of Deep Sea Drilling Project (DSDP) Site 364, located in the Kwanza Basin (offshore Angola). Twenty-nine planktic foraminiferal species were identified, enabling the identification of late Aptian–late Albian biozones, from the ''Hedbergella trocoidea'' Zone to the ''Pseudothalmanninella ticinensis'' Zone. ...... | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/content/43/4/443.abstract ABSTRACT]) | ||
| + | |||
| + | ----Kochhann, K.G.D, Koutsoukos, E.A.M., Fauth, G. and Sial, A.N., 2013. [http://jfr.geoscienceworld.org/content/43/4/443.abstract Aptian–Albian planktic foraminifera from DSDP Site 364 (Offshore Angola): Biostratigraphy, paleoecology, and paleoceanographic signicifance]. Journal of Foraminiferal Research 43 (4), 443-463. | ||
| + | |||
| + | |||
| + | ==ECOLOGICAL DISTRIBUTION OF RECENT DEEP-WATER FORAMINIFERA AROUND NEW ZEALAND== | ||
| + | |||
| + | [[Image:JFR_cover.gif|left|80px|]]<font size="2"> | ||
| + | Census counts (>63 μm) of 461 species in 361 samples are used as the basis for recognizing and mapping associations of deep-sea benthic foraminifera (50–5000-m depth) around New Zealand, southwest Pacific (28–60°S, 155°E–170°W). Fourteen faunal associations are identified by cluster analysis with five of these subdivided into 20 subassociations. ...... A major reason for this study was to understand the environmental drivers of foraminiferal faunal distribution in this region to assist in paleoenvironmental interpretations of fossil faunas which have a significant regional character. Canonical correspondence analysis indicates that the distribution of bathyal and abyssal associations is more strongly influenced by depth-related variables, while shallower associations are influenced by latitude-related differences in surface-water characteristics. ...... Environmental variables related to bottom-current strength appear to drive the faunal composition of three associations at shelf and bathyal depths. Cluster analysis enables the recognition of 22 anomalously deep faunas that are inferred to have a significant displaced content. There are no significant diversity trends correlated with depth, but species diversity decreases with increasing latitude at all depths. | ||
| + | <font size="2">([http://jfr.geoscienceworld.org/content/43/4/415.abstract ABSTRACT]) | ||
| + | |||
| + | ----Hayward, B.W., Sabaa, A.T., Grenfell, H.R., Neil, H. and Bostock, H., 2013. [http://jfr.geoscienceworld.org/content/43/4/415.abstract Ecological distribution of recent deep-water foraminifera around New Zealand]. Journal of Foraminiferal Research 43 (4), 415-442. | ||
| + | |||
==WEIGHT LOSS AND ELIMINATION OF PLANKTONIC FORAMINIFERAL TESTS IN A DISSOLUTION EXPERIMENT== | ==WEIGHT LOSS AND ELIMINATION OF PLANKTONIC FORAMINIFERAL TESTS IN A DISSOLUTION EXPERIMENT== | ||
