Browsing Paläontologie, Geobiologie by Issue Date
Now showing items 1-20 of 251
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On the present habitats and ecology of Vertigo pseudosubstriata Ložek, 1954 (Mollusca, Gastropoda, Vertiginidea) in Central Asia and its distribution history in Central and Eastern Europe
; ; ; ; (Journal of Quaternary Science, 2021-06-07)
The small terrestrial gastropod Vertigo pseudosubstriata Ložek, 1954 is one of the rarest glacial indicator species in the Pleistocene of Central and Eastern Europe. In all, this species has been found at only about 15 ... -
Revisiting Global Vegetation Controls Using Multi‐Layer Soil Moisture
; ; ; ; ; (Geophysical Research Letters, 2021-06-07)
The productivity of terrestrial vegetation is determined by multiple land surface and atmospheric drivers. Water availability is critical for vegetation productivity, but the role of vertical variability of soil moisture ... -
Response of large benthic foraminifera to climate and local changes: Implications for future carbonate production
; Reymond, Claire E.; ; Doo, Steve; Schmidt, Christiane; ; Westphal, Hildegard (Sedimentology, 2021-05-18)
Large benthic foraminifera are major carbonate components in tropical carbonate platforms, important carbonate producers, stratigraphic tools and powerful bioindicators (proxies) of environmental change. The application ... -
Bryozoan‐rich stromatolites (bryostromatolites) from the Silurian of Gotland and their relation to climate‐related perturbations of the global carbon cycle
; Munnecke, Axel; Ernst, Andrej (Sedimentology, 2021-05-12)
Bryozoan–stromatolite associations (bryostromatolites) formed conspicuous reef structures throughout the Sheinwoodian (Wenlock) to Ludfordian (Ludlow) stratigraphy on Gotland but have not been described so far. They are ... -
How Nitrogen and Phosphorus Availability Change Water Use Efficiency in a Mediterranean Savanna Ecosystem
El‐Madany, Tarek S.;; Carrara, Arnaud; ; ; Gonzalez‐Cascon, Rosario; ; ; Burchard‐Levine, Vicente; Hammer, Tiana W.; ; ; Luo, Yunpeng; Pacheco‐Labrador, Javier; ; Perez‐Priego, Oscar; ; Wutzler, Thomas; (Journal of Geophysical Research: Biogeosciences, 2021-05-11)
Nutrient availability, especially of nitrogen (N) and phosphorus (P), is of major importance for every organism and at a larger scale for ecosystem functioning and productivity. Changes in nutrient availability and potential ... -
Bacterial and archaeal lipids trace chemo(auto)trophy along the redoxcline in Vancouver Island fjords
; ; ; ; (Geobiology, 2021-05-07)
Abstract Marine oxygen minimum zones play a crucial role in the global oceanic carbon, nitrogen, and sulfur cycles as they harbor microbial communities that are adapted to the water column chemistry and redox zonation, and ... -
Limited utilization of extracted dissolved organic matter by prokaryotic communities from the subtropical North Atlantic
; ; ; ; (Limnology and Oceanography, 2021-05-06)
The ocean contains a large reservoir of dissolved organic matter (DOM) that persists for millennia. Both the very dilute concentrations of individual DOM molecules and intrinsic recalcitrance to microbial decay imparted ... -
Macrofauna as a major driver of bentho‐pelagic exchange in the southern North Sea
; van Beusekom, Justus E. E.; Eisele, Annika; Emeis, Kay‐Christian; Friedrich, Jana; Kröncke, Ingrid; Logemann, Ella Lu; Meyer, Julia; Naderipour, Céline; Schückel, Ulrike; Wrede, Alexa; Zettler, Michael L. (Limnology and Oceanography, 2021-05-06)
The contribution of sediments to nutrient cycling of the coastal North Sea is strongly controlled by the intensity of fluxes across the sediment water interface. Pore‐water advection is one major exchange mechanism that ... -
Aquatic and terrestrial proxy evidence for Middle Pleistocene palaeolake and lake‐shore development at two Lower Palaeolithic sites of Schöningen, Germany
; Tucci, Mario; Urban, Brigitte; Pilgrim, Julien; Frenzel, Peter; Soulié‐Märsche, Ingeborg; Schwalb, Antje (Boreas, 2021-05-06)
The archaeological sites in the open‐cast mine of Schöningen, Germany, represent outstanding archives for understanding Middle Pleistocene interglacial–glacial transitions and human adaption. Aquatic microfossil and pollen ... -
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 ... -
Teeth of Past and Present Elephants: Microstructure and Composition of Enamel in Fossilized Proboscidean Molars and Implications for Diagenesis
Białas, Nataniel; Prymak, Oleg; Singh, Ningthoujam Premjit; Paul, Debajyoti; Patnaik, Rajeev; (Geochemistry, Geophysics, Geosystems, 2021-04-22)
Enamel as hardest biological tissue remains unaltered for millions of years and is therefore an excellent archive for studies on paleodiet, paleoecology, paleoclimate, paleoenvironment, biomechanical, and evolutionary ... -
The evolution of thecideide microstructures and textures: traced from Triassic to Holocene
; Griesshaber, Erika; Angiolini, Lucia; Harper, David A.T.; Jansen, Ulrich; Bitner, Maria Aleksandra; Henkel, Daniela; Manzanero, Eloy; Müller, Tamás; Tomašových, Adam; ; Ziegler, Andreas; Schmahl, Wolfgang W. (Lethaia, 2021-04-02)
Thecideide brachiopods are an anomalous group of invertebrates. In this study, we discuss the evolution of thecideide brachiopods from the Triassic to the Holocene and base our results and conclusions on microstructure and ... -
Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records
; ; ; Vyse, Stuart A.; ; Böhmer, Thomas; Stoof‐Leichsenring, Kathleen; ; ; (Boreas, 2021-03-31)
This paper presents two new pollen records and quantitative climate reconstructions from northern Chukotka documenting environmental changes over the last 27.9 ka. Open tundra‐ and steppe‐like habitats dominated between ... -
Biostratigraphy and taxonomy of Drumian (middle Cambrian) agnostid trilobites of the Manuels River Formation, Avalonian Newfoundland, Canada
; ; ; (Papers in Palaeontology, 2021-03-25)
New, accurately located and well‐preserved agnostid trilobite material has been collected from the type locality of the Drumian (middle Cambrian, Miaolingian) Manuels River Formation, Newfoundland, Canada. The well‐exposed ... -
Quantifying the impact of chemicals on stable carbon and oxygen isotope values of raw pollen
; Hennig, Julian; Riedel, Frank; Helle, Gerhard (Journal of Quaternary Science, 2021-03-23)
Purification protocols to extract pollen from lake sediments contain chemicals that alter the carbon and oxygen pollen‐isotope values according to pollen characteristics and family affiliation. Modern (raw) pollen of ... -
Overlooked Implication of Sediment Transport at Low Flow: Migrating Ripples Modulate Streambed Phototrophic and Heterotrophic Microbial Activity
; Mendoza‐Lera, Clara; Mutz, Michael; Risse‐Buhl, Ute (Water Resources Research, 2021-03-17)
Sandy streambeds are mobile even at low flow velocities at which sediments can be transported as bedload, more specifically as migrating ripples. Small variations in discharge can result in transitions between sediment ... -
Not herbs and forbs alone: pollen‐based evidence for the presence of boreal trees and shrubs in Cis‐Baikal (Eastern Siberia) derived from the Last Glacial Maximum sediment of Lake Ochaul
Kobe, Franziska; Leipe, Christian; Shchetnikov, Alexander A.; Hoelzmann, Philipp; Gliwa, Jana; Olschewski, Pascal; Goslar, Tomasz; Wagner, Mayke; Bezrukova, Elena V.; (Journal of Quaternary Science, 2021-03-16)
A new accerator mass spectrometry (AMS)‐dated sedimentary record from Lake Ochaul (54°14′N, 106°28′E; 641 m a.s.l.) in Eastern Siberia covers the interval from ca. 27 850 to 20 400 cal a bp at ca. 180‐year resolution and ... -
Mid‐ to late Holocene environmental changes and human‐environment interactions in the surroundings of La Silla del Papa, SW Spain
; Norpoth, Maike; Pint, Anna; Shumilovskikh, Lyudmila; Raith, Kira; ; Rixhon, Gilles; Moret, Pierre; Jiménez‐Vialás, Helena; Grau‐Mira, Ignasi; García‐Jiménez, Iván; Marzoli, Dirce; León‐Martín, César; Reicherter, Klaus; (Geoarchaeology, 2021-02-17)
In southern Iberia, the surroundings of the Strait of Gibraltar are known as a crossroad for population movements, cultural exchanges, and trade from Late Prehistory to modern times. However, questions remain about the ... -
Remarkably high and consistent tolerance of a Red Sea coral to acute and chronic thermal stress exposures
; Fine, Maoz; Perna, Gabriela; ; Barshis, Daniel J. (Limnology and Oceanography, 2021-02-15)
Global warming is resulting in unprecedented levels of coral mortality due to mass bleaching events and, more recently, marine heatwaves, where rapid increases in seawater temperature cause mortality within days. Here, we ... -
Sporopollenin chemistry and its durability in the geological record: an integration of extant and fossil chemical data across the seed plants
; ; Beer, Maxine A.M.; ; Woutersen, Amber; Bogota‐Angel, Giovanni; ; Fraser, Wesley T.; Lomax, Barry H.; Huang, Huasheng; Sciumbata, Matteo; He, Huajie; Dupont‐Nivet, Guillaume (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, ...