1. U.S. Geological Survey Forest and Rangeland Ecosystem Science Center 970 Lusk Street Boise Idaho 83706 USA
2. U.S. Fish and Wildlife Service Columbia River Fish and Wildlife Conservation Office 1211 Southeast Cardinal Court, Suite 100 Vancouver Washington 98683 USA
3. U.S. Geological Survey Forest and Rangeland Ecosystem Science Center 3200 Southwest Jefferson Way Corvallis Oregon 97331 USA