1Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA,
2Department of Environmental Sciences, University of Toledo, Toledo, OH 43606-3390, USA
3School of Life Sciences, Arizona State University, Tempe, AZ, 85281, USA
4Departments of Ecology and Evolutionary Biology and Earth System Science, University of California, Irvine, CA 92697, USA
5Department of Natural Resources, University of New Hampshire, Durham, NH 03824, USA
6Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA, 94720, USA
7Department of Biology and the Environmental Science Program, Carthage College, 2001 Alford Park Drive, Kenosha, WI 53140, USA
8Department of Ecology, Evolution and Behavior, University of Minnesota, 1987 Upper Buford Circle, St. Paul, MN 55108, USA
9Department of Ecology, Evolution, and Marine Biology, University of California Santa Barbara, Santa Barbara, CA 93106, USA
10Departments of Ecology, Evolution & Behavior, Plant Biology and Soil, Water & Climate, University of Minnesota, 1987 Upper Buford Circle, St Paul, MN 55108, USA
11United States Geological Survey, 345 Middlefield Rd, MS 962, Menlo Park, CA 94025, USA
12Natural Resource Ecology Laboratory, Colorado State University, Campus Delivery 1499, Fort Collins, CO 80523-1499, USA
13School of Natural Resources, Univ. of Michigan, Ann Arbor, MI 48109-1115, USA.
