The population status of grizzly bears (Ursus arctos) in Canada was evaluated within broad areas called grizzly bear zones. These zones are large, contiguous areas where the climate and landforms provide a common influence on vegetation and land-use activities, and thus on grizzly bear behavior and populations. Of the 14 grizzly bear zones that historically supported populations, 12 currently support populations. We describe past and current land-use activities that impact habitats and populations of grizzly bears and predict future impacts. Gross analyses at the level of the grizzly bear zone identified probable unsustainable annual kills and excessive female kills for many of the grizzly bear zones. Population status was evaluated by comparing an estimate of current numbers to the estimated potential of the land to support grizzly bears. Grizzly bears have been extirpated from 24% of their original range and 63% of the current range is designated at risk, either vulnerable or threatened. The 4 grizzly bear zones in which grizzly bears are not at risk face increased impacts from land-use practices within the next 5 years. We discuss the implications of the designation of population status and make recommendations to ensure the conservation of grizzly bears.
- Volume 9
- Issue
- Pages 129-142
- Publication Date 1 January 1994
- DOI 10.2307/3872692
- File Size 570.12 KB
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