Institution: | (1) Department of Botany, University of Wyoming, Laramie, Wyoming 82071, USA;(2) Department of Statistics, University of Wyoming, Laramie, Wyoming 82071, USA;(3) Department of Renewable Resources, University of Wyoming, Laramie, Wyoming 82071, USA;(4) U.S. Department of the Interior, U.S. Geological Survey, Tucson, Arizona 85745, USA;(5) Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona 85721, USA |