Strategies for conserving native salmonid populations at risk from nonnative fish invasions
Subtitle: tradeoffs in using barriers to upstream movement
By: Kurt D. Fausch ... [et al.].
Contributors: Fausch, Kurt D.; Rocky Mountain Research Station (Fort Collins, Colo.)
Series: General technical report RMRS -- GTR-174.
Publisher: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station
Published: 2006
Place of publication: Fort Collins, CO
Language: eng
Number of pages: 44
Subjects: Salmonidae -- Effect of habitat modification on -- Inland Empire.; Salmonidae -- Effect of dams on -- Inland Empire.; Salmonidae -- Inland Empire -- Geographical distribution.; Salmonidae -- Population viability analysis -- Inland Empire.; Salmonidae -- Conservation -- Inland Empire.; Introduced fishes -- Inland Empire.; Isolating mechanisms -- Inland Empire.; Biological invasions -- Inland Empire.
Description: Native salmonid populations in the inland West are often restricted to small isolated habitats at risk from invasion by nonnative salmonids. However, further isolating these populations using barriers to prevent invasions can increase their extinction risk. This monograph reviews the state of knowledge about this tradeoff between invasion and isolation. We present a conceptual framework to guide analysis, focusing on four main questions concerning conservation value, vulnerability to invasion, persistence given isolation, and priorities when conserving multiple populations. Two examples illustrate use of the framework, and a final section discusses opportunities for making strategic decisions when faced with the invasion-isolation tradeoff.
Notes: "September 2006."

Includes bibliographical references (p. 37-44).

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