Auflistung Paläontologie, Geobiologie nach Titel
Anzeige der Dokumente 295-314 von 380
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Seasonal dynamics and characterization of coccolithophore export production in two major upwelling regions - Cape Blanc (NW-Africa) & Chile (30 °S)
(Univ. Bremen, 2008)Coccolithophores, a major group of the nanophytoplankton, belong to the class Prymnesiophyceae.The cells of coccolithophores are typically surrounded by layer(s) of calcium carbonate plates, the coccoliths. Certain ... -
Sedimentary DNA identifies modern and past macrophyte diversity and its environmental drivers in high‐latitude and high‐elevation lakes in Siberia and China
(Limnology and Oceanography, 2022-03-16)Arctic and alpine aquatic ecosystems are changing rapidly under recent global warming, threatening water resources by diminishing trophic status and changing biotic composition. Macrophytes play a key role in the ecology ... -
Silica entry and accumulation in standing trees in a hot-spring environment: cellular pathways, rapid pace and fossilization potential
(Palaeontology, 2020)Silicification is the most important process of fossilization resulting in the preservation of internal tissues in plants, thereby providing essential information on the anatomy, life history, and evolution of land plants. ... -
Simultaneous recording of filtration and respiration in marine organisms in response to short‐term environmental variability
(Limnology and Oceanography: Methods, 2021-01-18)Climate change imposes unusual long‐term trends in environmental conditions, plus some tremendous shifts in short‐term environmental variability, exerting additional stress on marine ecosystems. This paper describes an ... -
Sinking of Gelatinous Zooplankton Biomass Increases Deep Carbon Transfer Efficiency Globally
(Global Biogeochemical Cycles, 2019)Gelatinous zooplankton (Cnidaria, Ctenophora, and Urochordata, namely, Thaliacea) are ubiquitous members of plankton communities linking primary production to higher trophic levels and the deep ocean by serving as food and ... -
Skilful prediction of cod stocks in the North and Barents Sea a decade in advance
(Communications Earth & Environment, 2021-07-06)Reliable information about the future state of the ocean and fish stocks is necessary for informed decision-making by fisheries scientists, managers and the industry. However, decadal regional ocean climate and fish stock ... -
Species-level determination of closelyrelated araucarian resins using FTIRspectroscopy and its implications for theprovenance of New Zealand amber
(PeerJ, 2015)Some higher plants, both angiosperms and gymnosperms, can produce resins and some of these resins can polymerize and fossilize to form ambers. Various physical and chemical techniques have been used to identify and profile ... -
Sponges, Cnidarians, and Ctenophores
(The ecology of the Cambrian radiationThe ecology of the Cambrian radiation, 2001) -
Sponges, Cnidarians, and Ctenophores
(The ecology of the Cambrian radiation, 2001)Sponges and coralomorphs were sessile epibenthic suspension feeders living in normal marine environments. Sponges with calcified skeletons, induding archaeocyaths, mainly inhabited shallow to subtidal and intertidal ... -
"Spongy, slimy, cosy & more" - commemorative volume in celebration of the 60th birthday of Joachim Reitner
(Universitätsverlag Göttingen, Göttingen, 2014)This volume contains papers presented in part at a symposium held in May 2012 at Göttingen University, to honour Professor Joachim Reitner for his numerous contributions to the fields of geobiology, geology, and palaeontology. ... -
Sporopollenin chemistry and its durability in the geological record: an integration of extant and fossil chemical data across the seed plants
(Palaeontology, 2021-01-31)Sporopollenin is a highly resistant biopolymer that forms the outer wall of pollen and spores (sporomorphs). Recent research into sporopollenin chemistry has opened up a range of new avenues for palynological research, ... -
Stratigraphische und paläontologische Untersuchungen im Jura und der Kreide des tansanischen Küstenstreifens im Hinterland von Dar-Es-Salaam und Bagamoyo
(Berlin, Reimer, 1984)Die vorliegende Arbeit beschäftigt sich mit Strati graphischen, paläontologischen und paläogeographischen Untersuchungen im Jura und in der Kreide des tansanischen Küstenstreifens im Hinterland von Dar-es-Salaam und Bagamoyo. ... -
Structural basis of chitin utilization by a GH20 β‐N‐acetylglucosaminidase from Vibrio campbellii strain ATCC BAA‐1116
(Acta Crystallographica Section D, 2021-05-05)Vibrio species play a crucial role in maintaining the carbon and nitrogen balance between the oceans and the land through their ability to employ chitin as a sole source of energy. This study describes the structural basis ... -
Struktur, Bildung und Diagenese der Basalskelette bei rezenten Pharetroniden unter besonderer Berücksichtigung von Petrobiona massiliana - Vacelet & Levi 1958 (Minchinellida, Porifera)
(25 Jahre Paläontologie FU Berlin, 1989)Petrobiona massi1iana ist ein Vertreter der Calcaronea mit einem rigiden sekundären Hoch-MagnesiumkalzitBasalskelett ("Pharetronida"). Der kalkige Basalkörper besteht aus irregulären, meist elongaten PseudoSphäruliten. Der ... -
Struktur, Bildung und Diagenese der Basalskelette bei rezenten Pharetroniden unter besonderer Berücksichtigung von Petrobiona massiliana - Vacelet & Levi 1958 (Minchinellida, Porifera)
(25 Jahre Paläontologie FU Berlin25 Jahre Paläontologie FU Berlin, 1989) -
Stuck in time – a new Chaenothecopsis species with proliferating ascomata from Cunninghamia resin and its fossil ancestors in European amber
(Fungal Diversity, 2012)Resin protects wounded trees from microbial infection, but also provides a suitable substrate for the growth of highly specialized fungi. Chaenothecopsis proliferatus is described growing on resin of Cunninghamia lanceolata ...