Hierarchical habitat selection by barren-ground grizzly bears in the central Canadian Arctic
| Autor: | Dean H. Cluff, Robert Mulders, Ray L. Case, François Messier, Philip D. McLoughlin, Robert J. Gau |
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| Rok vydání: | 2002 |
| Předmět: |
geography
geography.geographical_feature_category ved/biology Ecology Tussock Grizzly Bears Home range ved/biology.organism_classification_rank.species Biology organization biology.organism_classification Shrub Tundra organization.mascot Habitat Ursus Ecology Evolution Behavior and Systematics Riparian zone |
| Zdroj: | Oecologia. 132:102-108 |
| ISSN: | 1432-1939 0029-8549 |
| DOI: | 10.1007/s00442-002-0941-5 |
| Popis: | Using resource selection functions, we examined habitat selection patterns of barren-ground grizzly bears (Ursus arctos) in the central Canadian Arctic among and within home ranges. There was no difference between the sexes with regard to habitat selection patterns at the home range level (Wilks' λ, approx. F11,11=1.27, P=0.37). Bear home ranges contain more esker habitat, tussock/hummock successional tundra, lichen veneer, birch seep, and tall shrub riparian areas relative to the proportional availability of habitats in the study area. We observed differences in habitat selection within home ranges among levels of sex/reproductive status (Wilks' λ, approx. F20,412=3.32, P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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