1. College of Life Sciences, Shaanxi Normal University, Xi’an 710119, China
2. Research Center for UAV Remote Sensing, Shaanxi Normal University, Xi’an 710119, China
3. Changqing Teaching & Research Base of Ecology, Shaanxi Normal University, Xi’an 710119, China
4. Carnegie Museum of Natural History, Pittsburgh, PA 15213, USA
5. Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15213, USA
6. Holden Forest and Gardens, Kirtland, OH 44094, USA