1. Department of Forest Ecosystems and Society Oregon State University Corvallis Oregon 97331 USA
2. Haire Laboratory for Landscape Ecology Rockport Massachusetts 01966 USA
3. Center for Environment and Sustainability Western State Colorado University Gunnison Colorado 81231 USA
4. Northern Forestry Centre Canadian Forest Service Natural Resources Canada Edmonton Alberta T6H 3S5 Canada
5. Department of Renewable Resources University of Alberta Edmonton Alberta T6G 2H1 Canada
6. U.S. Geological Survey Northern Rocky Mountain Science Center Jackson Wyoming 83001 USA
7. Aldo Leopold Wilderness Research Institute Rocky Mountain Research Station USDA Forest Service Missoula Montana 59801 USA