1. USDA ARS, Southwest Watershed Research Center Tucson Arizona USA
2. Warnell School of Forestry and Natural Resources University of Georgia Athens Georgia USA
3. Climate Change Science Institute and Environmental Sciences Division Oak Ridge National Laboratory Oak Ridge Tennessee USA
4. Department of Biological and Ecological Engineering Oregon State University Corvallis Oregon USA
5. USDA Forest Service, Savannah River Forestry Sciences Lab Aiken South Carolina USA