1. Northern Research Station USDA Forest Service Rhinelander Wisconsin
2. Division of Agriculture, Arkansas Forest Resources Center University of Arkansas Monticello Arkansas
3. School of Forestry and Natural Resources University of Arkansas at Monticello Monticello Arkansas
4. Environmental Program Space Science Institute Boulder Colorado
5. Department of Natural Resource Ecology and Management Iowa State University Ames Iowa
6. Department of Forestry and Environmental Resources North Carolina State University Raleigh North Carolina
7. Environmental Forestry Consultants New London Wisconsin
8. Ecolotree, Inc. North Liberty Iowa
9. Environmental Science Division Argonne National Laboratory Lemont Illinois
10. School of Forest Resources and Conservation University of Florida Gainesville Florida