Affiliation: | Department of Forest Science, Oregon State University, Corvallis, OR 97331 and Coastal Oregon Productivity Enhancement Program, Hatfield Marine Science Center, Newport, OR 97365, U.S.A.,;, Oregon Cooperative Wildlife Research Unit, Department of Fisheries and Wildlife, 104 Nash Hall, Oregon State University, Corvallis, OR 97331-3803, U.S.A. |