Robert P. Breckenridge, Environmental Science, Idaho National Lab and U of Idaho, P.O. Box 1625 - MS 2213, Idaho Falls, ID 83404-2213, Stephen C. Bunting, Department of Rangeland Ecology and Management, University of Idaho, 975 W. 6th Street, College of Natural Resources, Moscow, ID 83844-1135, and Maxine Dakins, Environmental Science, Interim Director, University of Idaho, Morrill Hall 216, Moscow, ID 83442.