Terrestrial Mammals of Washington State Location Data and Predicted Distributions
Johnson RE and Cassidy KM. 1997. Terrestrial Mammals of Washington State Location Data and Predicted Distributions. Washington State Gap Analysis - Final Report. Vol 3. Washington Cooperative Fish and Wildlife Research Unit, University of Washington. Seattle
The goals of the Gap Project are to map existing land cover, model breeding distributions of all terrestrial vertebrates and to identify ecosystems, species, and areas of high terrestrial verterbrate diversity that lack representation in the current network of reserves.