1. Department of Geography Indiana University Bloomington Bloomington IN USA
2. Department of Forestry and Environmental Resources North Carolina State University Raleigh NC USA
3. Center for Integrated Forest Science, Southern Research Station, USDA Forest Service North Carolina State University Raleigh NC USA
4. Institute for the Environment University of North Carolina at Chapel Hill Chapel Hill NC USA
5. Department of Geography University of North Carolina at Chapel Hill Chapel Hill NC USA