Movements of Yellowstone grizzly bears
Blanchard BM and Knight RR. 1991. Movements of Yellowstone grizzly bears. Biological Conservation. 58(1):41-67
"Ninety-seven grizzly bears Ursus arctos horribilis were radio-located 6299 times during 1975-87. Annual range sizes differed by sex, age, reproductive status and amount of precipitation. Females exhibited greater fidelity to seasonal and annual ranges than males. Weaned female offspring generally remained in the vicinity of the maternal range, while weaned males often made substantial movements to unexplored country. Average total home range size was 884 km super(2) for females and 3757 km super(2) for males. Males consistently exhibited greater indices of movement and range sizes than females. All cohorts had larger mean ranges during this study than during the period 1959-69 when the population had access to open garbage dumps. Movements and elevational distribution of all cohorts were related to availability of whitebark pine (Pinus albicaulis) seeds."
- Type
- Journal Article
- Authors
- Blanchard, Bonnie; Knight, Richard
- Units
- YELL
- Keywords
- Animal Studies, Grizzly Bear (Ursus arctos), Mammals, Range, Whitebark Pine (Pinus albicaulis)