1. Odum School of Ecology University of Georgia Athens GA30602USA
2. Warnell School of Forestry and Natural Resources University of Georgia Athens GA30602 USA
3. Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor MI48109 USA
4. Departmment of Integrative Biology University of Guelph Guelph ONN1G2W1 Canada
5. Department of Biology Western University London ONN6A5B7 Canada
6. Department of Biology Emory University Atlanta GA30322 USA