USDA Forest Service

Pacific Northwest Research Station - Ecological Process & Function - Wildlife Ecology Team


Pacific Northwest Research Station logo.

United States Department of Agriculture Forest Service.

Forest Carnivore Research Projects

(photo) Fisher kits on a logLong-standing concerns about the potential effects of timber harvesting, road building, and other active management practices on rare and sensitive forest carnivores (American marten, fisher, lynx, and wolverine) led to the publication of a conservation assessment for these species in the western United States in 1994 (Ruggiero et al. 1994). The assessment process was a collaborative effort involving scientists from the Pacific Northwest (PNW), Pacific Southwest (PSW), and Rocky Mountain Research Stations (RMRS), as well as the University of Wyoming. Since that time, one of the scientists on our Research Team has also served on the National Lynx and Wolverine Science Teams and contributed data to the National Lynx Survey. Members of our research team work closely with numerous Forest Service and academic carnivore biologists, especially colleagues at the Rocky Mountain Research Station in Missoula, MT, to share information, supplies, and equipment and to conduct collaborative research on all four species of forest carnivores.


Current forest carnivore research projects within the team include:

Wolverine distribution and ecology in the North Cascades Ecosystem

This is a collaborative research project with the USDA Forest Service's Pacific Northwest Research Station (Keith Aubry, Lead Principal Investigator; Catherine Raley) and Okanogan-Wenatchee National Forest (John Rohrer), the British Columbia Ministry of Environment (Eric Lofroth), and the Washington Department of Fish and Wildlife (Scott Fitkin).

Pilot Study conducted in 2005

5-year study initiated in 2006 and field research will continue through 2011

Recent Progress Reports and Updates from the Field

North Cascades Wolverine Study - Annual Report - 2010
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2011 Wolverine Project Updates from the Field

11 April

08 February


2010 Wolverine Project Updates from the Field

16 August

05 May

25 March

23 February


2009 Project Updates from the Field

24 September

2 June

23 April

16 March

2008 Project Updates from the Field

24 April

21 March




Ecological characteristics of fishers in southwestern Oregon


Ecological Characteristics of Fishers (Martes pennanti) in the Southern Oregon Cascade Range, Update: July 2006


Habitat selection by Canada lynx in north-central Washington



Ecology of the American marten in managed landscapes



USDA Forest Service - Pacific Northwest Research Station - Olympia Forestry Sciences Laboratory
Last Modified: Monday, 16 December 2013 at 14:18:50 CST

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