Institution: | 1. USDA Forest Service, Rocky Mountain Research Station, 507 25th Street, Ogden, UT 84401, USA;2. USGS Utah Cooperative Fish and Wildlife Research Unit, College of Natural Resources, Utah State University, Logan, UT 84322-5290, USA;3. Centre for Environmental Sciences, School of Civil Engineering and the Environment, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom |