1. U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, The Pennsylvania State University, University Park, PA 16802
2. Department of Statistics, North Carolina State University, Raleigh, NC 27695
3. Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
4. Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota, St. Paul, MN 55108
5. Department of Ecosystem Science and Management, Pennsylvania Cooperative Fish and Wildlife Research Unit, The Pennsylvania State University, University Park, PA 16802