Results 11 to 20 of about 13,981 (252)
Efficacy of bear spray as a deterrent against polar bears
Wildlife Society Bulletin, 2023 Although there have been few attempts to systematically analyze information on the use of deterrents on polar bears (Ursus maritimus), understanding their effectiveness in mitigating human‐polar bear conflicts is critical to ensuring both human safety ...
James M. Wilder +5 more
doaj +1 more source
Field metabolic rate and PCB adipose tissue deposition efficiency in East Greenland polar bears derived from contaminant monitoring data. [PDF]
PLoS ONE, 2014 Climate change will increasingly affect the natural habitat and diet of polar bears (Ursus maritimus). Understanding the energetic needs of polar bears is therefore important.
Viola Pavlova +8 more
doaj +1 more source
Distinct gut microbiomes in two polar bear subpopulations inhabiting different sea ice ecoregions
Scientific Reports, 2022 Gut microbiomes were analyzed by 16S rRNA gene metabarcoding for polar bears (Ursus maritimus) from the southern Beaufort Sea (SB), where sea ice loss has led to increased use of land-based food resources by bears, and from East Greenland (EG), where ...
Megan Franz +7 more
doaj +1 more source
Increased Land Use by Chukchi Sea Polar Bears in Relation to Changing Sea Ice Conditions. [PDF]
PLoS ONE, 2015 Recent observations suggest that polar bears (Ursus maritimus) are increasingly using land habitats in some parts of their range, where they have minimal access to their preferred prey, likely in response to loss of their sea ice habitat associated with ...
Karyn D Rode +5 more
doaj +1 more source
Projected polar bear sea ice habitat in the Canadian Arctic Archipelago. [PDF]
PLoS ONE, 2014 Sea ice across the Arctic is declining and altering physical characteristics of marine ecosystems. Polar bears (Ursus maritimus) have been identified as vulnerable to changes in sea ice conditions.
Stephen G Hamilton +5 more
doaj +1 more source
RIPPLE MARKS—The Story Behind the Story [PDF]
Oceanography, 2015 Last of the Ice Bears? Climate Change Threatens Iconic Polar Bears’ Food Sources In 1773, King George III of England appointed naval officer Constantine John Phipps to command an Arctic expedition.
Cheryl Lyn Dybas
doaj +1 more source
Anthropogenic food: an emerging threat to polar bears
Oryx, 2023 Supplemental food from anthropogenic sources is a source of conflict with humans for many wildlife species. Food-seeking behaviours by black bears Ursus americanus and brown bears Ursus arctos can lead to property damage, human injury and mortality of ...
Tom S. Smith +7 more
doaj +1 more source
The Energetic Value of Land-Based Foods in Western Hudson Bay and Their Potential to Alleviate Energy Deficits of Starving Adult Male Polar Bears. [PDF]
PLoS ONE, 2015 Climate change is predicted to expand the ice-free season in western Hudson Bay and when it grows to 180 days, 28-48% of adult male polar bears are projected to starve unless nutritional deficits can be offset by foods consumed on land.
Linda J Gormezano, Robert F Rockwell
doaj +1 more source
Scientific Reports, 2021 Studies of predator feeding ecology commonly focus on energy intake. However, captive predators have been documented to selectively feed to optimize macronutrient intake.
Karyn D. Rode +4 more
doaj +1 more source