Grizzly bear: habitat relationships in the Yellowstone area
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Abstract
Habitat use by grizzly bears (Ursus arctos) was studied from 1977 through 1979 in a 20,000-km2 area with Yellowstone National Park in the center. Of 1826 aerial radio locations of 46 instrumental grizzlies, 90% were in timber. Three-fourths of the locations were 100 m or less from an edge between timber and an opening. Timber over 3 m tall with a canopy cover of 26-75% accounted for 50% of all activity sites from March through November. The Abies lasiocarpa/Vaccinium scoparium community alone contained 23% of the total activity sites and 35% of the forested activity sites. Of 507 observations of feeding activity, 45% were recorded in timber over 3 m tall with a canopy cover of 26-100%, 34% in timber with a 0.1-25% canopy cover, 20% in open habitats, and 3% in timber less than 3 m tall. Ninety-nine percent of examined day beds were in forested communities.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Grizzly bear: habitat relationships in the Yellowstone area |
| Series title | Bears: Their Biology and Management |
| DOI | 10.2307/3872528 |
| Volume | 5 |
| Year Published | 1983 |
| Language | English |
| Publisher | International Conference on Bear Research and Management |
| Publisher location | New York, NY |
| Contributing office(s) | Northern Rocky Mountain Science Center |
| Description | 6 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Bears: Their Biology and Management |
| First page | 118 |
| Last page | 123 |
| Conference Title | Fifth International Conference on Bear Research and Management |
| Conference Location | Madison, WI |
| Conference Date | February 1980 |
| Country | United States |
| Other Geospatial | Yellowstone National Park |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |