1. Climate Change Institute, 210 Sawyer, University of Maine, Orono, ME 04469
2. Maine Natural History Observatory, 317 Guzzle Road, Gouldsboro, ME 04607
3. Acadia National Park and Schoodic Education and Research Center, P.O. Box 177, Bar Harbor, ME 04609
4. Department of Biology, Boston University, 5 Cummington Mall, Boston, MA, 02215