Effects of disturbance on forest carnivores of conservation concern in Eastern Oregon and Washington

Evelyn L. Bull; Keith B. Aubry; Barbara C. Wales

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Effects of disturbance on forest carnivores of conservation concern in Eastern Oregon and Washington

Journal article

Open access

Peer reviewed

Effects of disturbance on forest carnivores of conservation concern in Eastern Oregon and Washington

Evelyn L. Bull, Keith B. Aubry and Barbara C. Wales

Northwest science., Vol.75, pp.180-184

2001

Handle:

https://hdl.handle.net/2376/995

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Abstract

forest pests

insect pests

plant pests

predators

prey

salvage felling-and-logging

stand structure

wildlife conservation

Plant Diseases

The effects on forest carnivores of forest insects, tree diseases, wildfire, and management strategies designed to improve forest health (e.g., thinning, salvage operations, prescribed burns, and road removal) are discussed. Forest carnivores of conservation concern in eastern Oregon and Washington, USA include the Canada lynx (Lynx canadensis), wolverine (Gulo gulo), and fisher (Martes pennanti). All three species depend to some degree on forest structures, stands, and landscapes created by insects, disease, and fire. Wildfire and insect outbreaks maintain a mosaic of structural stages across the landscape that are used by lynx. Thinning of dense lodgepole pine (Pinus contorta) stands that result largely from wildfire and insect outbreaks is detrimental to snowshoe hares (Lepus americanus), which are the primary prey of lynx. Fishers use large stands of mature forest and snags, hollow live trees, logs, stumps, witches-brooms, and other structures for rest and den sites. Salvage harvesting, thinning, and conversion from predominantly fir stands to ponderosa pine (P. ponderosa) may adversely affect habitat conditions for fishers. Use of roads is perhaps most detrimental to wolverines because they are easily trapped and avoid humans.

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Title: Effects of disturbance on forest carnivores of conservation concern in Eastern Oregon and Washington
Creators: Evelyn L. Bull (Author)
Keith B. Aubry (Author)
Barbara C. Wales (Author)
Publication Details: Northwest science., Vol.75, pp.180-184
Academic Unit: Northwest Science
Publisher: WSU Press
Identifiers: 99900502424201842
Copyright: In copyright ; openAccess ; http://rightsstatements.org/vocab/InC/1.0/ ; http://purl.org/eprint/accessRights/OpenAccess
Language: English
Resource Type: Journal article