1. Department of Forest Ecosystems and Society, Oregon State University Corvallis, Oregon 97331 USA
2. Institute for Microbial and Biochemical Technology, USDA Forest Service, Forest Products Laboratory, One Gifford Pinchot Drive, Madison, Wisconsin 53726‐2398 USA
3. USDA Forest Service, Forestry Sciences Laboratory, 3200 SW Jefferson Way, Corvallis, Oregon 97331 USA