Auflistung Paläontologie, Geobiologie nach Titel
Anzeige der Dokumente 348-367 von 380
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The role of mesozooplankton grazing in the biogeochemical cycle of silicon in the Southern Ocean
(Univ. Bremen, 2004)Calanus simillimus, Rhincalanus gigas, grazing, biogeochemistry, biogenic silica. - The role of copepod grazing, particularly of Calanus simillimus and Rhincalanus gigas, in the biogeochemical cycles of silicon (Si) and ... -
The Role of Zooplankton Grazing and Nutrient Recycling for Global Ocean Biogeochemistry and Phytoplankton Phenology
(Journal of Geophysical Research: Biogeosciences, 2022-10-25)Zooplankton plays a notable role in ocean biogeochemical cycles. However, it is often simulated as one generic group and top closure term in ocean biogeochemical models. This study presents the description of three zooplankton ... -
The Sail-Backed Reptile Ctenosauriscus from the Latest Early Triassic of Germany and the Timing and Biogeography of the Early Archosaur Radiation
(PLoS ONE, 2011-10-14)Background Archosaurs (birds, crocodilians and their extinct relatives including dinosaurs) dominated Mesozoic continental ecosystems from the Late Triassic onwards, and still form a major component of modern ecosystems ... -
The selection and analysis of fatty acid ratios: A new approach for the univariate and multivariate analysis of fatty acid trophic markers in marine pelagic organisms
(Limnology and Oceanography: Methods, 2020)Fatty acid (FA) compositions provide insights about storage and feeding modes of marine organisms, characterizing trophic relationships in the marine food web. Such compositional data, which are normalized to sum to 1, ... -
The Serbian Lake System: a stepping stone for freshwater molluscs in the middle Miocene
(Papers in Palaeontology, 2020)The first in-depth revision of a lacustrine freshwater mollusc fauna of the Serbian Lake System (SLS) is carried out. We describe and discuss well-preserved faunas from two localities in central and southern Serbia (Mađere ... -
The Upper Cretaceous "chaetetid" demosponge Stromatoaxinella irregularis n. g. (Michelin) and its systematic implications
(Neues Jahrbuch für Geologie und Paläontologie / Abhandlungen, 1988) -
The Upper Cretaceous "chaetetid" demosponge Stromatoaxinella irregularis n. g. (Michelin) and its systematic implications
(Neues Jahrbuch für Geologie und Paläontologie, 1988) -
Tooth eruption in the Early Cretaceous British mammal Triconodon and description of a new species
(Papers in Palaeontology, 2020)Triconodon mordax, from the lowest Cretaceous (Berriasian) part of the Purbeck Group, Dorset, is known by an ontogenetic series of specimens that document aspects of tooth eruption and replacement. Based on micro-computed ... -
Towards quantifying changes in forest cover in the Araucaria forest-grassland mosaic in southern Brazil
(Vegetation History and Archaeobotany, 2021-05-18)Quantitative estimates of past vegetation cover are needed both regionally so human-landscape interactions can be better understood, and globally to evaluate the effects of changing vegetation cover on the climate system. ... -
Traces of the bone-eating annelid Osedax in Oligocene whale teeth and fish bones
(Paläontologische Zeitschrift, 2012)The range of substrates that the bone-eating marine worm Osedax is able to consume has important implications for its evolutionary history, especially its potential link to the rise of whales. Once considered a whale ... -
Transformation of dissolved organic matter by two Indo‐Pacific sponges
(Limnology and Oceanography, 2022-09-12)Dissolved organic matter (DOM) is the largest organic carbon reservoir in the ocean and an integral component of biogeochemical cycles. The role of free‐living microbes in DOM transformation has been studied thoroughly, ... -
Transposable Elements: From DNA Parasites to Architects of Metazoan Evolution
(Genes, 2012)One of the most unexpected insights that followed from the completion of the human genome a decade ago was that more than half of our DNA is derived from transposable elements (TEs). Due to advances in high throughput ... -
Trees Talk Tremor—Wood Anatomy and δ13C Content Reveal Contrasting Tree‐Growth Responses to Earthquakes
(Journal of Geophysical Research: Biogeosciences, 2021-10-08)Large earthquakes can increase the amount of water feeding stream flows, raise groundwater levels, and thus grant plant roots more access to water in water‐limited environments. We examine growth and photosynthetic responses ... -
Turritelline mass accumulations from the Lower Miocene of southern Germany: implications for tidal currents and nutrient transport within the North Alpine Foreland Basin
(Lethaia, 2019-09-30)The mass occurrence of turritelline gastropod shells from the Lower Miocene of southern Germany allows for detailed studies of their palaeoecology, transport mechanisms, preservation potentials and the reconstruction of ... -
Understanding crop processing and its social meaning in the Xinzhai period (1850–1750 cal bce): a case study on the Xinzhai site, China
(Vegetation History and Archaeobotany, 2021-09-03)Although the Xinzhai period (1850–1750 cal bce) has been widely regarded as a critical time for the development of urbanization in China, little is known about the labour and social organization of the time. In this paper, ... -
Understanding the geobiology of the terminal Ediacaran Khatyspyt Lagerstätte (Arctic Siberia, Russia)
(Geobiology, 2020)The Khatyspyt Lagerstätte (~544 Ma, Russia) provides a valuable window into late Ediacaran Avalon-type ecosystems with rangeomorphs, arboreomorphs, and mega-algae. Here, we tackle the geobiology of this Lagerstätte by the ... -
Unsupervised biodiversity estimation using proteomic fingerprints from MALDI-TOF MS data†
(Limnology and Oceanography: Methods, 2020)Species identification using matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) data strongly relies on reference libraries to differentiate species. Because comprehensive reference ... -
Unusual Deep Water sponge assemblage in South China-Witness of the end-Ordovician mass extinction.
(Scientific reports, 2015)There are few sponges known from the end-Ordovician to early-Silurian strata all over the world, and no records of sponge fossils have been found yet in China during this interval. Here we report a unique sponge assemblage ... -
Über Umfang und Stellung des Rhaet
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