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Bull Trout Vulnerability Assessment Update, Jason Dunham, USGS FRESC

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Published on Mar 25, 2013

This update was provided to FWS on March 21, 2013. (Apologies for the lack of full screen quality-- we had tech. difficulties during the WebEx presentation.)

The assessment (underway) will incorporate an evaluation of climate and non-climate threats, and potential interactions among them to evaluate potential bull trout persistence. In summary, it includes the following steps:
1) Map suitable habitat "patches" across the species' range in the conterminous United States; 2) Attribute patches with information on local and climate related threats; 3) Map and attribute migratory habitats for the species and their relationship to "patches;" and 4) model persistence of bull trout in relation to local and climate related threats in patches and migratory habitats.

For more information, contact Jason Dunham, U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, Corvallis, OR; jdunham@usgs.gov; 541-750-7397

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