Results 141 to 150 of about 248,472 (361)

Arctic East Siberia had a lower latitude in the Pleistocene

open access: yes, 2006
In Arctic East Siberia many remains of mammoths have been found. In this region there is not sufficient sunlight over the year to allow for the growth of the plants on which these animals feed.
Baltensperger, W., Woelfli, W.
core   +2 more sources

Impacts of Pleistocene extinctions on the biomass and energy use of local mammal assemblages around the world

open access: yesEcography, EarlyView.
Many of the world's megafaunal species went extinct during the late Quaternary, leading to dramatic reductions in community and ecosystem functioning. While the nature and severity of the extinctions are well documented on global and continental scales, less is known about local‐scale impacts.
Benjamin E. Carter, John Alroy
wiley   +1 more source

Extinct Pleistocene carnivores were diurnal and highly active

open access: yesEcography, EarlyView.
There is much contention over the causes and correlates of megafaunal extinctions at the end of the Pleistocene. A major role for human impact such as hunting has been discussed widely. If correct, the overkill hypothesis explains not only why large mammals in general were highly prone to extinction but suggests that extinction may have been selective ...
Orlin S. Todorov, John Alroy
wiley   +1 more source

Water availability and evolutionary similarity shape the global distribution of ferns with chlorophyllous spores

open access: yesEcography, EarlyView.
About 14% of all fern species have chlorophyllous spores, which lack dormancy, have thin walls, and have a shorter viability (only a few days in some species). These spores should have limited dispersal distances and be more susceptible to harsher climatic conditions, raising questions about the evolutionary and ecological significance of this trait ...
Daniela Mellado‐Mansilla   +5 more
wiley   +1 more source

Taxonomical revision of the Late Würm Sorex (Mammalia, Insectivora) remains of Hungary, for proving the presence of an alpine ecotype in the Pilisszántó Horizon [PDF]

open access: yes, 2004
Fossil bone assemblages of 14 localities, ranged in the Pilisszántó Horizon (Late Würm), are stored in the collection of the Geological Museum of Hungary and Hungarian Natural History Museum.
Mészáros, L. Gy.
core  

Lake–Groundwater Biogeochemical Interactions in a River‐Delimited System: The Groundwater and Lakes Urban Observatory (GLUO)

open access: yesInternational Review of Hydrobiology, EarlyView.
ABSTRACT Preservation of urban aquatic ecosystems is of primary importance for human well‐being, biodiversity protection and the future of society. Lake–groundwater–river interactions within urban floodplains harbour intrinsic fragility, yet remain largely understudied.
Marlene Dordoni   +7 more
wiley   +1 more source

Introduction

open access: yes
The Depositional Record, EarlyView.
Lee R. Kump   +2 more
wiley   +1 more source

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