Scott L Collins, University of New Mexico Main Campus, Department of Biology, Albuquerque, NM, United States, Timothy J Ohlert, Colorado State University, Department of Biology, Fort Collins, United States, Mariah Patton, University of New Mexico Main Campus, Albuquerque, United States, Melinda Dianne Smith, Colorado State University, Department of Biology and Graduate Degree Program in Ecology, Fort Collins, CO, United States, Alan Knapp, Colorado State University, Department of Biology and Graduate Degree Program in Ecology, Fort Collins, United States, Jennifer Rudgers, University of New Mexico, Albuquerque, United States, Lin Song, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China, Wentao Luo, 1Erguna Forest-Steppe Ecotone Research Station, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China and Renée F Brown, University of New Mexico, Department of Biology, Albuquerque, NM, United States