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Habitat Preferences of Fishers

Photo of A fisher in the snow. Timothy Catton, USDA Forest ServiceA fisher in the snow. Timothy Catton, USDA Forest ServiceSnapshot : This is the first study to investigate the broader applicability of habitat selection patterns for fishers derived from multiple independent radiotelemetry studies conducted over a broad geographic area.

Principal Investigators(s) :
Aubry, Keith 
Research Location : Washington, Oregon, California
Research Station : Pacific Northwest Research Station (PNW)
Year : 2013
Highlight ID : 536

Summary

Throughout the Pacific coastal region, fishers needing to rest tend to pick sites with steeper slopes, cooler microclimates, denser overhead cover, a greater volume of logs, and a higher prevalence of large trees and snags than are generally available. In areas within that region where fishers have not been studied and data on selection of resting sites are lacking, these findings provide empirical support for management or conservation actions for fishers that promote the retention or development of these environmental attributes. The fisher has been designated by the U.S. Fish and Wildlife Service as a candidate for listing under the Endangered Species Act within its range in the Pacific coastal states. Prior to this study, the generality of observed patterns beyond the boundaries of each study area was unknown. So, researchers conducted a formal meta-analysis of habitat selection by fishers among eight studies located from north-central British Columbia to the southern Sierra Nevada in California, including all areas that currently contain established fisher populations. This is the first study to investigate the broader applicability of habitat selection patterns for fishers derived from multiple independent radiotelemetry studies conducted over a broad geographic area.

Forest Service Partners

External Partners

  • Pacific Southwest Research Station
  • Rocky Mountain Research Station
  • Artemis Wildlife Consultant
  • Humboldt State University
  • U.S. Fish and Wildlife Service
  • University of Wyoming

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