1. Northern Research Station USDA Forest Service Durham New Hampshire 03824 USA
2. Department of Forest and Natural Resources Management State University of New York – College of Environmental Science and Forestry Syracuse New York 13210 USA
3. Center for the Environment Plymouth State University Plymouth New Hampshire 03264 USA
4. Cary Institute of Ecosystem Studies Millbrook New York 12545 USA
5. Department of Ecology and Evolutionary Biology University of Connecticut Storrs Connecticut 06269 USA
6. National Hydrology Research Center Environment Canada Saskatoon Saskatchewan S7N 3H5 Canada