1. Nicholas School of the Environment & Pratt School of Engineering Duke University Durham North Carolina USA
2. Department of Forest Sciences University of Helsinki Helsinki Finland
3. Department of Geography State University of New York at Buffalo Buffalo New York USA
4. USDA Forest Service, Southern Research Station Research Triangle Park North Carolina USA
5. Department of Biological Sciences University of Notre Dame Notre Dame Indiana USA
6. Environmental Sciences Division, Climate Change Science Institute, Oak Ridge National Laboratory Oak Ridge Tennessee USA