Results 31 to 40 of about 30,014 (151)
American black bears and hair snares: a behavioral analysis [PDF]
Ursus, 2020 Despite the widespread use of noninvasive hair-sampling for American black bear (Ursus americanus) population monitoring, there is no explicit analysis of black bear behavior at hair snare sites. During 2016, we deployed hair snares and camera traps at 40 sites across the northern Lower Peninsula of Michigan, USA, and collected 560 video recordings of ...
Steven M. Gurney +3 more
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Phylogeography and pleistocene evolution in the North American black bear [PDF]
Molecular Biology and Evolution, 1997 To determine the extent of phylogeographic structuring in North American black bear (Ursus americanus) populations, we examined mitochondrial DNA sequences (n = 118) and restriction fragment length polymorphism profiles (n = 258) in individuals from 16 localities.
S, Wooding, R, Ward
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Developing a Preference Scale for a Bear: From “Bearly Like” to “Like Beary Much”
Animals, 2023 A preference scale for use by nonhuman animals would allow them to communicate their degree of liking for individual items rather than just relative preferences between pairs of items.
Jennifer Vonk
doaj +1 more source
BMC Evolutionary Biology, 2008 Background Despite being one of the most studied families within the Carnivora, the phylogenetic relationships among the members of the bear family (Ursidae) have long remained unclear.
Rabeder Gernot +17 more
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Characterizing North Carolina black bear (Ursus americanus) populations using UrsaPlex v2.0
Forensic Science International: Animals and Environments, 2023 American black bears (Ursus americanus) have been successfully restored in North Carolina (NC) due to management and research efforts by the North Carolina Wildlife Resources Commission and various partners.
Samantha L. Badgett +11 more
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Use of isotopic sulfur to determine whitebark pine consumption by Yellowstone bears: A reassessment
Wildlife Society Bulletin, 2014 Use of naturally occurring stable isotopes to estimate assimilated diet of bears is one of the single greatest breakthroughs in nutritional ecology during the past 20 years. Previous research in the Greater Yellowstone Ecosystem (GYE), USA, established a
Charles C. Schwartz +6 more
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Developing a Reliable Welfare Assessment Tool for Captive Hibernatory Bear Species
Animals, 2021 Animal welfare assessments are essential for the identification of welfare hazards and benchmarking of welfare improvements, though welfare assessments for zoo species are lacking.
Chloe J. Maher +3 more
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Novel range overlap of three ursids in the Canadian subarctic
Arctic Science, 2019 We describe for the first time in the peer-reviewed literature observations of American black bear (Ursus americanus Pallas, 1780), grizzly bear (Ursus arctos Linnaeus, 1758), and polar bear (Ursus maritimus Phipps, 1774) at the same locations.
Douglas Andrew Clark +5 more
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A Postmortem Finding of a Colloid Goiter in an American Black Bear (Ursus Americanus)
Acta VeterinariaThe present case report aims to describe a postmortem finding of a colloid goiter, without obvious clinical signs of endocrine disease in a 30-year-old American black bear (Ursus americanus) from the “Zoo” in the city of Sofia, Bulgaria.
Popov Georgi Stoychev +4 more
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Frontiers in Ecology and EvolutionIntroductionUrbanization is an extreme form of land use alteration, with human development driving changes in the distribution of resources available to wildlife.
Cassandre C. Venumière-Lefebvre +4 more
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