Stream patches of suitable Bull Trout habitat and associated patch variables

Publication Date

2014-10-22

Start Date

1984

End Date

2014

Bull Trout (Salvelinus confluentus) is one of the most cold-adapted species in freshwater in North America. The species is listed as threatened under the U.S. Endangered Species Act throughout its range within the conterminous United States, which encompasses a vast geography, including major river systems such as the Klamath and Columbia Rivers, and a host of Pacific coastal rivers in Washington State, as well as river systems originating east of the continental divide in northern Montana and ultimately draining to the Atlantic Ocean.Our fundamental objective in this project is to evaluate climate-related and local threats to Bull Trout and to provide an objective and unified framework for evaluating them together across the species’ range within the conterminous United States. To this end, we have 1) developed and applied methods for delineating and mapping discrete patches of habitat that support spawning and early rearing of Bull Trout, 2) attributed these patches with covariates indicating climate-related and local threats to Bull Trout, and 3) developed models to relate these covariates to presence of Bull Trout to identify the most important factors influencing presence, and to quantify spatial variation in their influences. This GIS dataset represents parts 1 and 2 of this effort.

ScienceBase WMS

ScienceBase WFS

• National and Regional Climate Adaptation Science Centers
• Northwest CASC

Data source

Input directly