Results 31 to 40 of about 1,624 (212)
, 2018 Ursus arctos Linnaeus, 1758 —Brown Bear Ursus arctos Linnaeus, 1758 p.47; Type locality- Sweden; Won, 1968 p.271; Han, 1994 p.46; Won & Smith, 1999 p.17; Oh, 2004a p.165. U.
Baccus, John T. +2 more
core +1 more source
Vasculoprotective properties of plasma lipoproteins from brown bears (Ursus arctos) [PDF]
, 2021 Plasma cholesterol and triglyceride (TG) levels are twice as high in hibernating brown bears (Ursus arctos) than healthy humans. Yet, bears display no signs of early stage atherosclerosis development when adult.
Oorni K. +14 more
core +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT While competition with large carnivores is likely to have shaped Middle Paleolithic hominins' subsistence behavior, palimpsested human and carnivore accumulations render the signal challenging to isolate. This study presents a detailed zooarchaeological and taphonomic analysis of a non‐anthropogenic faunal assemblage from a MIS 5 (~130–80 ka ...
Meir Orbach +4 more
wiley +1 more source
International Journal of Osteoarchaeology, EarlyView.ABSTRACT A significant methodological difficulty in the interpretation of Pleistocene zooarchaeological assemblages is the identification of taphonomic agents that modify and break bones. Carnivores, in particular, have been a main focus, as competition with carnivores may have affected carcass acquisition opportunities for humans in the past.
Gerard Terrón‐Marín +3 more
wiley +1 more source
Šumarski list, 2009 Family of bears (Ursidae) have a potential to exhibit various characteristics under the influence of environment and nutrition. The goal of this paper was to analyze craniometrical measurements of brown bear (Ursus arctosL.) population from Croatia with objectives to define them, as well as to determinate differences between sexes. A total of 34 skulls
Farkaš, Vladimir +6 more
openaire +4 more sources
Grizzly Bear, Ursus arctos, predation of a denned adult Black Bear, U. americanus
The Canadian field-naturalist, 1993 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Smith, Martin E., Follmann, Erich H.
openaire +1 more source
Familiarity and aggression shape long‐term associations and mortality risk in a solitary ungulate
Oikos, EarlyView.Periodic social interactions are important to animal fitness, even in solitary species. For solitary species, these interactions can be unexpected and shaped by previous encounters. Despite being aggressive and largely solitary, black rhinoceroses Diceros bicornis are commonly seen in groups, suggesting they may engage in more social behaviours than ...
Rachel M. Stein, Adrian M. Shrader
wiley +1 more source
Genomic evidence for island population conversion resolves conflicting theories of polar bear evolution. [PDF]
PLoS Genetics, 2013 Despite extensive genetic analysis, the evolutionary relationship between polar bears (Ursus maritimus) and brown bears (U. arctos) remains unclear. The two most recent comprehensive reports indicate a recent divergence with little subsequent admixture ...
James A Cahill +10 more
doaj +1 more source
Wildlife Biology, 2005 We collected hair samples from bears and used microsatellite genotyping to identify individual bears on three study areas near the Canadian Rocky Mountains. We estimated density of grizzly bears Ursus arctos in eight different ecosystems across five study areas, including the reanalysis of two previously published data sets.
Garth Mowat +5 more
openaire +1 more source
When wolves aren't enough: revisiting trophic cascades in northern Wisconsin
Oikos, EarlyView.Elimination of top predators has allowed large herbivores to flourish in many terrestrial ecosystems, transforming food webs and ecosystem functions. Restoration of large predator communities is hoped to reverse negative effects of this trophic downgrading, but evidence for such effects is elusive.
Elaine M. Brice +6 more
wiley +1 more source