The original Climate Shield Cutthroat Trout and Bull Trout models published by Isaak et al. (2015) were developed from electrofishing fish surveys conducted at >4,500 locations in >500 natal streams patches across Montana, Idaho, and Oregon as described in the peer-reviewed studies and agency reports listed below.
A revised Climate Shield bull trout model was published by Isaak et al. (2022) based on an expanded data set of 9,857 surveys in 991 stream patches that included eDNA surveys from the Rangewide Bull Trout eDNA Project (Young et al. 2017). This data set with the covariate values used in model fitting and selection is available here in Excel and ArcGIS file formats. Please refer to this ReadMe document for descriptions of the covariates and the Isaak et al. 2022 publication for additional details.
Special thanks to the many biologists with the National Forest system for providing data from their fish monitoring programs and Leslie Nyce with Montana Fish, Wildlife and Parks for assistance with accessing information through the MFISH database.
Isaak DJ, Rieman BE, Horan D (2009) A watershed-scale monitoring protocol for bull trout. General Technical Report. GTR-RMRS-224. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 25 p.
Kellett M (2007) Boise National Forest aquatic management indicator species monitoring report. Department of Agriculture, U.S. Forest Service, Boise National Forest, Boise, Idaho.