1. Department of Biology Virginia Commonwealth University Richmond Virginia 23284 USA
2. Joint Global Change Research Institute Pacific Northwest National Lab College Park Maryland USA
3. Department of Natural Resources and the Environment Center for Environmental Sciences and Engineering University of Connecticut Storrs Connecticut USA
4. United States Geological Survey Sacramento California 95819 USA
5. Department of Forestry and Natural Resources Purdue University West Lafayette Indiana 47907 USA
6. Department of Civil and Environmental Engineering Purdue University West Lafayette Indiana 47907 USA
7. Department of Geology and Geography West Virginia University Morgantown West Virginia USA
8. Harvard University Harvard Forest Petersham Massachusetts USA
9. NASA Goddard Space Flight Center Greenbelt Maryland USA
10. University of Michigan Biological Station Pellston Michigan USA
11. Department of Environmental Sciences University of Virginia Charlottesville Virginia USA