Aaron Thompson, University of Georgia, Crop and Soil Science, Athens, GA, United States, Elizabeth K Coward, University of Delaware, Delaware Environmental Institute, Newark, DE, United States, Daniel Markewitz, University of Georgia, Athens, GA, United States, Daniel deB. Richter Jr, Duke University, Nicholas School of the Environment, Durham, NC, United States, Allan R Bacon, University of Florida, School of Forest Resources and Conservation, Ft Walton Beach, FL, United States and Alain F Plante, University of Pennsylvania, Earth & Environmental Science, Philadelphia, PA, United States