Results 81 to 90 of about 7,206 (264)

New evidence for the Hirnantian (Upper Ordovician) in Belgium? An integrated isotopical, biostratigraphic and sedimentologic approach

open access: yesCarnets de Géologie, 2005
The Hirnantian is an important time in Earth history as it includes one of the major episodes of continental glaciation and marine mass extinction (e.g. Brenchley et alii, 1994).
Grassineau Nathalie   +4 more
doaj  

Glacial geomorphology of the Chirripó National Park, Costa Rica

open access: yesJournal of Maps, 2019
Several regions of tropical America show imprints of past glacial activity. These relict landforms can support the understanding of past climate conditions, such as during the Last Glacial Maximum (LGM), and the implications that these paleoclimatic ...
Adolfo Quesada-Román   +3 more
doaj   +1 more source

Modern and ancient red fox (Vulpes vulpes) in Europe show an unusual lack of geographical and temporal structuring, and differing responses within the carnivores to historical climatic change

open access: yesBMC Evolutionary Biology, 2011
Background Despite phylogeographical patterns being well characterised in a large number of species, and generalised patterns emerging, the carnivores do not all appear to show consistent trends.
Thomas Jessica A   +2 more
doaj   +1 more source

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

open access: yesAdvanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng   +14 more
wiley   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording   +4 more
wiley   +1 more source

Explicit solutions for a probabilistic moraine preservation model

open access: yesJournal of Glaciology, 2016
If a series of glacial advances occurs over the same pathway, the moraines that are now present may constitute an incomplete record of the total history.
PAUL MUZIKAR
doaj   +1 more source

Evidence of introgression amid phylogenetic conflict in Brachyotum, a plant radiation from the Tropical Andes

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The species‐rich flora of Tropical Andes underwent multiple rapid and recent diversifications, yet resolving their evolutionary histories remains challenging despite increasing phylogenomic data. Here, we examined phylogenomic conflict in Brachyotum (Melastomataceae) to identify sources preventing its resolution.
Diego Paredes‐Burneo   +5 more
wiley   +1 more source

The Droseraceae during the glaciations

open access: yesCarnivorous Plant Newsletter, 1989
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

THE GLACIATION OF NORTH CLEVELAND [PDF]

open access: yesProceedings of the Yorkshire Geological Society, 1908
Read 26th September, 1908. Manuscript received 5th December, 1908. Thanks to the great work of Professor Kendall in the Cleveland area, glacial geologists are now furnished with a key which will enable them to trace the history of the decline of the glaciers which debouched on to the plains of England during the Ice Age.
openaire   +2 more sources

Glaciation as a migratory switch

open access: yesScience Advances, 2017
Range shifts at glacial maxima suggest that birds oscillate between migratory and sedentary behavior with glaciation as a switch.
Zink, Robert M., Gardner, Aubrey S.
openaire   +2 more sources

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