1. River Basin Center, University of Georgia, 110 Riverbend Road, Athens, Georgia 30602 USA
2. Office of Research and Development, US Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, Ohio 45268 USA
3. Warnell School of Forestry and Natural Resources, University of Georgia, Athens, Georgia 30602 USA
4. Department of Biology, Phytotron Box 90338, Duke University, Durham, North Carolina 27708 USA
5. University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, 1 Williams St. P.O. Box 38, Solomon, Maryland 20688 USA
6. Department of Environmental Studies, Skidmore College, 815 North Broadway, Saratoga Springs, New York 12866 USA
7. Department of Biological Systems Engineering, 304 Seitz Hall, Virginia Polytechnical Institute and State University, Blacksburg, Virginia 24061 USA
8. Limnology Group, Centre d’Estudis Avançats de Blanes (CSIC), Accés a la Cala Sant Francesc 14, 17300 Blanes, Girona, Spain
9. Odum School of Ecology, University of Georgia (emeritus), 498 Shoreland Dr., Lopez Island, Washington 98261 USA
10. Tetra Tech, Inc., 400 Red Brook Blvd., Suite 200, Owings Mills, Maryland 21117 USA
11. Department of Environmental and Natural Resources Sciences, Humboldt State University, 1 Harpst St., Arcata, California 95521 USA
12. Institute for Tropical Ecosystem Studies, University of Puerto Rico, P.O. Box 21910, San Juan, Puerto Rico 00931 USA
13. Odum School of Ecology, University of Georgia, Athens, Georgia 30602 USA
14. National Center for Environmental Assessment, US Environmental Protection Agency, 2400 Pennsylvania Ave. NW, Washington, DC 20460 USA
15. Department of Biology, Duke University, Durham, North Carolina 27708 USA
16. Department of Resource Management and Geography, The University of Melbourne, Parkville, Victoria 3010, Australia