Funding for this research was provided by:
the National Natural Science Foundation of China (Nos. 31672303 to CY, 31472013 and 31772453 to WL)
Article History
Received: 6 February 2018
Revised: 23 June 2018
Accepted: 29 June 2018
First Online: 8 July 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Experimental procedures were in line with Chinese laws and in agreement with the Animal Research Ethics Committee of Hainan Provincial Education Centre for Ecology and Environment, Hainan Normal University. Fieldwork was carried out under the permission from the Forestry Department of Guizhou Province and Kuankuoshui National Nature Reserve, China (also see Yang et al. CitationRef removed).