Demography and population trend of grizzly bears in the Swan Mountains, Montana

Article Abstract:

Demography, movement and population trends have been studied for grizzly bears in wilderness and other areas in the Swan Mountains of Montana from 1987 to 1996. Capture and telemetry methods were used. Data came mostly from the nonwilderness areas including public multi-use areas and rural areas near and including private land. Bears that used only multi-use lands were much more likely to survive. Wildlife managers should develop a conservation plan that promotes bear population stability or growth by improving female survival rates and minimizing bear conflicts on private land. Protecting core areas on public land which is good habitat would help. Access management, a required bear identification course for hunters of black bears and reducing anthropogenic food on private lands would be methods of value. Monitoring should be continued.

Statistics, Environmental aspects, Bears, Wilderness areas, Mountain ecology

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Grizzly bear habitat selection in the Swan Mountains, Montana

Article Abstract:

Grizzly bears are an endangered species in the US and there is continuing interest in how the species uses available habitat. A study of grizzly bears in the Swan Mountains of Montana examines their use of seven satellite-derived cover types over an eight year period. Results show that avalanche chutes are preferred bear habitats during all seasons, together with slab rock. The least selected habitats are forested areas.

Behavior, Observations, Habitat selection

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Landscape evaluation of grizzly bear habitat in western Montana

Article Abstract:

Research indicates that land management strategies are needed to maintain grizzly bear habitat in the western Montana region. Satellite imagery, mapping and extrapolation identified areas that would benefit from restoration. Data obtained suggest that road density reductions and ecological maintenance on private lands would have positive impacts on grizzly bear resource selection and seasonal behaviors.

United States, Models, Habitat (Ecology), Human beings, Human-environment interactions, Habitats, Wildlife habitat improvement

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