Results 141 to 150 of about 89,682 (311)
ABSTRACT The second half of the Allerød interstadial in the Netherlands is characterised by pine forest. Excavated trunks of 165 pine trees at Leusden‐Den Treek in the central Netherlands (LETR16) were dated by dendrochronology and radiocarbon. Two chronologically separated pine forest phases occurred during relatively warm periods as recorded in ...
Wim Z. Hoek +4 more
wiley +1 more source
ABSTRACT This paper examines regional and chronological variations in Acheulean handaxe morphology during Marine Isotope Stage 11 (c. 425–365 ka BP) in Britain. Using a data set of 737 handaxes from 13 securely dated sites in East Anglia and the Thames Valley, we apply three‐dimensional geometric morphometric analysis to examine morphological ...
Mark White +5 more
wiley +1 more source
Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age
ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin +2 more
wiley +1 more source
Moose indifferent to canopy loss from forest disturbance by bark beetles
Moose showed strikingly similar patterns of habitat selection before and after widespread forest disturbance following an infestation of bark beetles. Our findings indicate that beetle‐kill does not appreciably alter habitat quality for moose and highlight the importance of riparian areas in sustaining moose as they contend with changing forests ...
Alexander B. May +5 more
wiley +1 more source
Monitoring mercury across the National Wildlife Refuge System using a biosentinel approach
We measured mercury concentrations in 1,356 dragonfly larvae collected from 30 National Wildlife Refuges across the United States and found wide variability among refuges, spanning the full range reported for other protected lands. Using a management‐focused mercury impairment index, 80% of refuges contained sites classified as moderate or higher risk.
Jennifer L. Wilkening +8 more
wiley +1 more source
Extremely cold ocean temperatures in iron formation brine pools of snowball Earth. [PDF]
Lu K +4 more
europepmc +1 more source
Wild pig habitat use impacted by prescribed fire in the William B. Bankhead National Forest, USA
Natural resource management activities like integrated wild pig control programs and 3–5‐year interval prescribed burning can reduce wild pig activity and habitat but can have an unintended side effect of allowing them to thrive in sensitive and protected areas, where access and tools are restricted.
Patience E. Knight +2 more
wiley +1 more source
Indian summer monsoon variability from 184 to 25 ka inferred from sedimentary magnetic properties in Heqing Basin, Southwest China. [PDF]
Yang Z, Xu X, Li S, Qiang X.
europepmc +1 more source
Population dynamics, survival, and movements of Texas tortoises in a national park in southern Texas
Texas tortoise abundance in a small national park in South Texas, USA, declined by >25%, from an estimated 273 tortoises in 2014 to 204 tortoises in 2024. The severity of the decline varied across survey units, but abundance remained highest in areas having greater canopy cover and experiencing less invasion by Guinea grass.
Tracey D. Tuberville +4 more
wiley +1 more source

