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Species and Habitat Information
Species Information.
- Raley, C.M.; Lofroth, E.C.; Truex, R.L.; Yaeger, J.S.; Higley, J.M. Habitat ecology of fishers in western north America. In Biology and Conservation of Martens, Sables, and Fishers: A New Synthesis; Aubry, K.B., Zielinski, W.J., Raphael, M.G., Proulx, G., Buskirk, S.W., Eds.; Cornell University Press: Ithaca, NY, USA, 2012; pp. 231–254. (PDF, 1MB)
- Lofroth, E. C., C. M. Raley, J. M. Higley, R. L. Truex, J. S. Yaeger, J. C. Lewis, P. J. Happe, L. L. Finley, R. H. Naney, L. J. Hale, A. L. Krause, S. A. Livingston, A. M. Myers, and R. N. Brown. 2010. Conservation of Fishers (Martes pennanti) in South-Central British Columbia, Western Washington, Western Oregon, and California–Volume I: Conservation Assessment. USDI Bureau of Land Management, Denver, Colorado, USA. (PDF, 272MB)
- Lofroth, E. C., J. M. Higley, R. H. Naney, C. M. Raley, J. S. Yaeger, S. A. Livingston, and R. L. Truex. 2011. Conservation of Fishers (Martes pennanti) in South-Central British Columbia, Western Washington, Western Oregon, and California–Volume II: Key Findings From Fisher Habitat Studies in British Columbia, Montana, Idaho, Oregon, and California. USDI Bureau of Land Management, Denver, Colorado, USA. (PDF, 3.3MB)
- Naney, R. H., L. L Finley, E. C. Lofroth, P. J. Happe, A. L. Krause, C. M. Raley, R. L. Truex, L. J. Hale, J. M. Higley, A. D. Kosic, J. C. Lewis, S. A. Livingston, D. C. Macfarlane, A. M. Myers, and J. S. Yaeger. 2012. Conservation of Fishers (Martes pennanti) in South-Central British Columbia, Western Washington, Western Oregon, and California–Volume III: Threat Assessment. USDI Bureau of Land Management, Denver, Colorado, USA. (PDF, 3.4MB)
- Weir, R.D. 2003. Status of the fisher in British Columbia. Ministry of Sustainable Resource Management, Conservation Data Centre, and Ministry of Water, Land and Air Protection, Biodiversity Branch, Wildlife Bulletin Number B-105. Victoria, British Columbia. (PDF, 2.4MB)
- Fisher Identified Wildlife Management Strategy (IWMS) account. (PDF, 0.2MB)
- BC Conservation Data Centre / BC Species and Ecosystem Explorer webpage for fisher.
Habitat Management.
- BC Fisher Habitat Working Group. 2024. Incorporating Fisher Habitat Conditions and Targets into Forest Planning: Recommendations for Harvesting in the Interior Cedar Hemlock Zone.
- BC Fisher Habitat Working Group. 2023. Incorporating Fisher Habitat Conditions and Targets into Forest Planning: Recommendations for Harvesting Operations during Wildfire Salvage.
- BC Fisher Habitat Working Group. 2019. Incorporating Fisher Habitat Conditions and Targets into Forest Planning: Recommendations for Partial Cutting Silvicultural Systems. (PDF, 0.2 MB)
- BC Fisher Habitat Working Group. 2019. Guidance on Fisher Open Area Analysis. (PDF, 0.2MB)
- Nenqay Deni Fish and Wildlife Accord. 2018. Proposal for Joint Recommendation on Fisher Habitat Management. Unpublished report prepared for Forest, Lands, and Natural Resource Operations (PDF, 1.6 MB)
- Davis, L. 2016. Fisher (Pekania pennanti) artificial reproductive den box study; with 2018 addendum. Unpublished report prepared for Fish and Wildlife Compensation Program and the Habitat Conservation Trust Foundation. (PDF, 3.0MB; 2020 Updated Fisher Den Box Drawings – PDF, 0.5MB)
- 2010 Chief Forester’s Guidance on Coarse Woody Debris Management. (PDF, 0.1MB)
- Weir, R. D., and P. Lara Almuedo. 2010. British Columbia’s Interior: Fisher Wildlife Habitat Decision Aid. BC Journal of Ecosystems and Management 10(3):35–41. (PDF, 0.6MB)
- 2005 Chief Forester Guidance on Landscape- and Stand-level Structural Retention in Large-Scale Mountain Pine Beetle Salvage Operations. (PDF, 0.4MB)
Research Projects and Articles.
- Fogarty, R.D., Weir, R.D., Larsen, K.W., 2025. Forestry, fire, and fur: Factors influencing densities of endangered fishers (Pekania pennanti) in central British Columbia, Canada. The Journal of Wildlife Management, e70010.
- Weir, R.D., 2025. Differentiation and adaptation among fishers in Western Canada: Evidence for validity of Pekania pennanti columbiana subspecies. Stacks Journal, 25002.
- Weir, R.D., Rankin, A.A., Robinson, L., Pilgrim, K.L., Schwartz, M.K., Lucid, M.K., 2024. Genetic structuring of fishers in British Columbia, Canada: Implications for population conservation and management. Journal of Mammalogy 105, 465-480.
- Lofroth, E.C., Weir, R.D., Davis, L.R., Hansen, I.-J., 2023. A tale of two populations: vital rates of fishers in British Columbia, Canada. Journal of Wildlife Management 87, e22315.
- Fogarty, R.D., Weir, R.D., Lofroth, E.C., Larsen, K.W., 2022. Trapping mortality accelerates the decline of the fisher, an endangered mesocarnivore, in British Columbia, Canada. Endangered Species Research 49, 1-12.
- Davis, L.R., Weir, R.D., 2021. Density of fishers (Pekania pennanti) at the southwestern edge of the species’ range in British Columbia. Northwestern Naturalist 102, 232-238.
- Weir, R.D., Lofroth, E.C., Phinney, M., Harris, L.R., 2013. Spatial and genetic relationships of fishers in boreal mixed-wood forests of northeastern British Columbia. Northwest Science 87, 114-125.
- Weir, R. D., M. Phinney, and E. C. Lofroth. 2012. Big, sick, and rotting: Why tree size, damage, and decay are important to fisher reproductive habitat. Forest Ecology and Management 265: 230-240. (PDF, 0.7 MB)
- Proulx, G. 2011. Verification of a forest rating system to predict fisher (Martes pennanti) winter distribution in Sub-Boreal forests of British Columbia, Canada. Can. Field Nat. 125(1): 7–11. (PDF, 0.1 MB)
- Weir, R. D., E. C. Lofroth, and M. Phinney. 2011. Density of fishers in boreal mixed-wood forests of northeastern British Columbia. Northwestern Naturalist 92:65-69. (PDF, 2.0 MB)
- Weir, R. D., and F. B. Corbould. 2010. Factors affecting landscape occupancy by fishers in north-central British Columbia. Journal of Wildlife Management 74:405-410. (PDF, 0.3 MB)
- Davis, L. R., 2009. Denning ecology and habitat use by Fisher (Martes pennanti) in pine dominated ecosystems of the Chilcotin Plateau. Master Thesis. Simon Fraser University. 109 pp. (PDF, 0.5 MB)
- Weir, R. D., A. S. Harestad, and F. B. Corbould. 2009. Home ranges and spatial organization of fishers in central British Columbia. Canadian Field-Naturalist 123(1):126-132. (PDF, 0.6MB)
- Weir, R. D., and F. B. Corbould. 2007. Factors affecting diurnal activity of fishers in north-central British Columbia. Journal of Mammalogy 88:1508-1514. (PDF, 0.6 MB)
- Proulx, G. 2006. Using forest inventory data to predict winter habitat by fisher (Martes pennanti) in British Columbia, Canada. Acta Theriologica 51(3): 275-282. (PDF, 0.2 MB)
- Weir, R. D., and F. B. Corbould. 2006. Density of fishers in the Sub-Boreal Spruce biogeoclimatic zone of British Columbia. Northwestern Naturalist 87:118-127. (PDF, 1.6 MB)
- Weir, R. D., A. S. Harestad, and R. C. Wright. 2005. Winter diet of fishers in British Columbia. Northwestern Naturalist 86:12-19. (PDF, 0.1 MB)
- Weir, R. D., F. B. Corbould, and A. S. Harestad. 2004. Effect of ambient temperature on the selection of rest structures by fishers. Pages 196-210 in J. Harrison, A. K. Fuller, and G. Proulx, editors. Martens and Fisher (Martes) in Human-Altered Environments: An International Perspective. Kluwer Academic Publishers, Norwell, Massachusetts, USA. (PDF, 0.5 MB)
- Weir, R. D., and A. S. Harestad. 2003. Scale-dependent habitat selectivity by fishers in south-central British Columbia. Journal of Wildlife Management 67:73-82. (PDF, 2.3MB)
- Weir, R. D., and A. S. Harestad. 1997. Landscape-level selectivity by fishers in south-central British Columbia. Pages 252-264 in Proulx, H. N. Bryant, and P. M. Woodward, editors. Martes: Taxonomy, ecology, techniques, and management. Provincial Museum of Alberta. Edmonton, Alberta, Canada. (PDF, 0.9MB)
- Weir, R. D. 1995. Diet, spatial organization, and habitat relationships of fishers in south-central British Columbia. Simon Fraser University, Burnaby, British Columbia, Canada. (PDF, 1.2 MB)
