1. Idaho Cooperative Fish and Wildlife Research Unit University of Idaho 875 Perimeter Drive, Mail Stop 1141 Moscow Idaho 83844 USA
2. Arizona Game and Fish Department 5000 West Carefree Highway Phoenix Arizona 85086 USA
3. Idaho Department of Fish and Game 4279 Commerce Circle Idaho Falls Idaho 83401 USA
4. U.S. Geological Survey Idaho Cooperative Fish and Wildlife Research Unit University of Idaho 875 Perimeter Drive, Mail Stop 1141 Moscow Idaho 83844 USA