1. The Nature Conservancy; 99 Bedford Street Boston MA 02111 U.S.A.
2. NatureServe; 4001 Discovery Drive Boulder CO 80303 U.S.A.
3. School of Forestry; Northern Arizona University; Flagstaff AZ 86011 U.S.A.
4. School of Forest Resources; University of Washington; Seattle WA 98195 U.S.A.
5. The Nature Conservancy; 201 Mission Street San Francisco CA 94105 U.S.A.
6. The Nature Conservancy; 821 SE 14 Avenue Portland OR 97214 U.S.A.
7. John Muir Institute of the Environment; University of California-Davis; Davis CA 95616 U.S.A.
8. The Australian Museum; 6 College Street Sydney NSW 2010 Australia