Affiliation: | 1. Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR 97331 USA E-mail: ssovern@fs.fed.us;2. USDA Forest Service, Corvallis Forestry Sciences Laboratory, 3200 SW Jefferson Way, Corvallis, OR 97331 USA;3. U.S. Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR 97331 USA;4. Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR 97331 USA |