作者单位: | Department of Ecosystem Sciences and Natural Resource Ecology Laboratory, 1231 East Drive, Colorado State University, Fort Collins, CO 80523, United States of America;Department of Ecosystem Sciences and Natural Resource Ecology Laboratory, Colorado State University, in cooperation with U.S. Geological Survey, Fort Collins Science Center, 2150 Centre Avenue, Building C, Fort Collins, CO 80526, United States of America;Grouse Inc., 5572 North Ventana Vista Road, Tucson, AZ 85750, United States of America
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