January 28, 2012
Several recently completed and ongoing research projects of the Wyoming Coop Research Unit evaluate ungulate behavior within the spring and fall migration corridors. To date, results indicate that the migration corridor can be considered as having two distinct functions: providing a travel path between winter and summer ranges, and providing high-quality stopover habitats that may be important to reproduction and survival. Independent work by Hall Sawyer has also evaluated the efficacy of underpasses and overpasses that are being installed by the Wyoming Department of Transportation to benefit migratory ungulate populations and to improve driver safety.
Reporters Rebecca Martinez and Willow Belden interviewed Sawyer, Kauffman, and a number of other experts for these stories. The segment on highway crosses begins at 26:18, and the segment about migration corridors and stopover habitats begins at 32:26.