1. USDA Forest Service Southern Research Station New Ellenton SC USA
2. Department of Biology Virginia Commonwealth University Richmond VA USA
3. Department of Environmental Sciences University of Virginia Charlottesville VA USA
4. Environmental Research Alliance Charlottesville VA USA
5. Biospheric Sciences Laboratory NASA Goddard Space Flight Center Greenbelt MD USA
6. Department of Geographical Sciences University of Maryland College Park MD USA
7. Department of Natural Resources and the Environment & Center for Environmental Sciences and Engineering University of Connecticut Storrs CT USA