Seasonal and Daily Activity of Two Zoo-Housed Grizzly Bears (Ursus arctos horribilis)
نویسندگان
چکیده
منابع مشابه
Grizzly bears (Ursus arctos horribilis) and black bears (Ursus americanus) prevent trabecular bone loss during disuse (hibernation).
Disuse typically causes an imbalance in bone formation and bone resorption, leading to losses of cortical and trabecular bone. In contrast, bears maintain balanced intracortical remodeling and prevent cortical bone loss during disuse (hibernation). Trabecular bone, however, is more detrimentally affected than cortical bone in other animal models of disuse. Here we investigated the effects of hi...
متن کاملSerological survey of selected canine viral pathogens and zoonoses in grizzly bears (Ursus arctos horribilis) and black bears (Ursus americanus) from Alaska.
Between 1988 and 1991, 644 serum samples were collected from 480 grizzly bears (Ursus arctos horribilis) and 40 black bears (Ursus americanus) from Alaska, United States of America, and were tested for selected canine viral infections and zoonoses. Antibody prevalence in grizzly bears was 0% for parvovirus, 8.3% (40/480) for distemper, 14% (68/480) for infectious hepatitis, 16.5% (79/480) for b...
متن کاملHibernation-associated changes in persistent organic pollutant (POP) levels and patterns in British Columbia grizzly bears (ursus arctos horribilis).
We hypothesized that depleted fat reserves in grizzly bears (Ursus arctos horribilis) following annual hibernation would reveal increases in persistent organic pollutant (POP) concentrations compared to those present in the fall. We obtained fat and hair from British Columbia grizzly bears in early spring 2004 to compare with those collected in fall 2003, with the two tissue types providing con...
متن کاملGrizzly bear (Ursus arctos horribilis) locomotion: gaits and ground reaction forces.
Locomotion of plantigrade generalists has been relatively little studied compared with more specialised postures even though plantigrady is ancestral among quadrupeds. Bears (Ursidae) are a representative family for plantigrade carnivorans, they have the majority of the morphological characteristics identified for plantigrade species, and they have the full range of generalist behaviours. This ...
متن کاملNoninvasive fecal monitoring of glucocorticoids in Alaskan brown bears (Ursus arctos horribilis)
Brooks River in Katmai National Park is one o f the most famous bear-viewing areas in the world. The close proximity of brown bears and humans at Brooks River poses a question vital to the management of these bears: do ongoing human activities at Brooks River induce stress in brown bears that rely on this fishing area for much of their nutritional intake? Fecal monitoring of glucocorticoids is ...
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ژورنال
عنوان ژورنال: Journal of Zoological and Botanical Gardens
سال: 2020
ISSN: 2673-5636
DOI: 10.3390/jzbg1010001