1. Department of Ecology, Evolution, and Environmental Biology Columbia University New York New York USA
2. Department of Ecology, Evolution & Behavior Institute of Life Sciences, The Hebrew University of Jerusalem, Campus Edmond J. Safra, Givat Ram Jerusalem Israel
3. New York Department of Environmental Conservation Albany New York USA
4. Environmental Studies, Science Center Gettysburg College Gettysburg Pennsylvania USA
5. USDA Forest Service, Rocky Mountain Research Station Fort Collins Colorado USA
6. Rubenstein School of Environment and Natural Resources, The University of Vermont Burlington Vermont USA
7. Massachusetts Audubon Headquarters Lincoln Massachusetts USA
8. Department of Geography, Faculty of Social Sciences The Hebrew University of Jerusalem, Mt. Scopus Jerusalem Israel