Biological consequences of relocating grizzly bears in the Yellowstone ecosystem
Article Abstract:
A study has been conducted to examine the effect of relocation on the survival of the grizzly bear, Ursus arctos, transported in the Yellowstone National Park. Survival was determined according to the ability of the bears to return to the capture site. Transported bears had lower survival rates than those not transported. Bears that were transported at distances greater than 75 km. decreased their return rates. These results suggest that the homing ability of bears is influenced by distance. Results also suggest that return rates and survival rates are determined by the bears' age-sex group.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1995
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Use of lodgepole pine cover types by Yellowstone grizzly bears
Article Abstract:
Lodgepole pines form a large part of grizzly bear habitat in Yellowstone National Park, and management guidelines suggest timber harvest as a way of improving habitats dominated by lodgepole pine. A study examined the use of lodgepole pine forests by grizzly bear in the Yellowstone area and found that positive selection for any lodgepole pine was not common. It did however corroborate previous studies that grizzly bears preferred to graze on wet and fertile sites with open and/or young stands.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1997
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Spring feeding on ungulate carcasses by grizzly bears in Yellowstone National Park
Article Abstract:
Ungulates are an important part of the grizzly bears' diet in Yellowstone National Park, particularly during the nondenning period. Much of the ungulate consumption in the spring is through scavenging. A study designed to test bear consumption of carrion and the influence of human activity on their feeding habits shows that grizzly bear behaviour is clearly affected by humans and carcasses near human facilities are underutilized.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1997
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