Results 31 to 40 of about 9,179 (239)

Collapse of the mammoth-steppe in central Yukon as revealed by ancient environmental DNA

open access: yesNature Communications, 2021
‘The timing and ecological dynamics of extinction in the late Pleistocene are not well understood. Here, the authors use sediment ancient DNA from permafrost cores to reconstruct the paleoecology of the central Yukon, finding a substantial turnover in ...
Tyler J. Murchie   +10 more
doaj   +1 more source

Sedimentary Ancient DNA (sedaDNA) Reveals Fungal Diversity and Environmental Drivers of Community Changes throughout the Holocene in the Present Boreal Lake Lielais Svētiņu (Eastern Latvia)

open access: yesMicroorganisms, 2021
Fungi are ecologically important in several ecosystem processes, yet their community composition, ecophysiological roles, and responses to changing environmental factors in historical sediments are rarely studied. Here we explored ancient fungal DNA from
Liisi Talas   +4 more
doaj   +1 more source

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+1 more source

Taphonomy and paleoecology of lower cretaceous oyster mass occurrences from west-central Argentina and evolutionary paleoecology of gregariousness in oysters [PDF]

open access: yes, 2018
Lower Cretaceous (lower Hauterivian) oyster mass occurrences (OMOs) dominated by the gryphaeid small oyster Ceratostreon from the Neuquen Basin (west-central Argentina) are analyzed in terms of taphonomy and paleoecology in order to characterize their ...
AGUSTINA G. TOSCANO   +5 more
core   +1 more source

Biodiversidad, montañas y cambio climático

open access: yesCollectanea Botanica, 2014
En este artículo se discute el origen y mantenimiento de la biodiversidad en las montañas tropicales, con énfasis en el Neotrópico, y se concluye que los patrones de biodiversidad de las biotas de gran altura no pueden ser explicados sin la acción ...
V. Rull
doaj   +1 more source

PALEOENVIRONMENTS RECONSTRUCTED FROM THE ANALYSES OF LOESS SEQUENCES ON SUSAK ISLAND, ADRIATIC SEA [PDF]

open access: yesActa Geographica Debrecina. Landscape & Environment Series, 2017
Susak Island is the outermost member of the archipelago of the Kvarner Bay, North Adriatic Sea, Croatia. Its long-term landscape evolution is defined by tectonic movements.
ÉVA KIS   +2 more
doaj   +1 more source

Paleoecología ecológica: Un eslabón perdido entre ecología y evolución

open access: yesCollectanea Botanica, 2014
La paleoecología es más que una disciplina ambiental, ya que proporciona las evidencias empíricas necesarias para verificar hipótesis ecológicas y contribuye a una mejor comprensión de la interfase ecología-evolución.
V. Rull
doaj   +1 more source

Integration of proxies in human–environmental systems: paleoecology, paleoclimatology, and archaeology

open access: yes, 2023
Co-developing paleoscience research questions is associated with effective collaboration challenges. We discuss a framework that brings together past socio–environmental processes and proxies to foster future interdisciplinary collaborations.- Quaternary
Maldonado, A.   +5 more
core   +1 more source

The Paleoecology of Microplastic Contamination

open access: yesFrontiers in Environmental Science, 2020
While the ubiquity and rising abundance of microplastic contamination is becoming increasingly well-known, there is very little empirical data for the scale of their historical inputs to the environment. For many pollutants, where long-term monitoring is
Chiara E. P. Bancone   +3 more
doaj   +1 more source

The bivalve-bearing carbonate platform on the east Tethys during the middle Eocene and its response to the Tethys transgression

open access: yesFrontiers in Earth Science
The Eocene was a typical greenhouse climate period in the history of the Earth, with a high global sea level and extensive carbonate deposits developed in Tethys.
Shaobo Fang   +8 more
doaj   +1 more source

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