1. Biology Department; Southern Oregon University; 1250 Siskiyou Blvd. Ashland OR 97520 USA
2. Forestry Sciences Laboratory; U.S.D.A. Forest Service; 3200 SW Jefferson Way Corvallis OR 97331 USA
3. Department of Wood Science & Engineering; Oregon State University; Corvallis OR 97331 USA
4. National Health and Environmental Effects Research Laboratory (NHEERL); Western Ecology Division; U.S. Environmental Protection Agency; 200 SW 35th Street Corvallis OR 97333 USA
5. University of Missouri; Department of Forestry; 203ABNR Building Columbia MO 65211 USA