Abstract:
Camera-trapping has become the primary method of wildlife investigation and monitoring, and the standardized use of this technique is a prerequisite to acquire representative and comparable data. In order to understand the standard of use of camera-trapping in wildlife resources investigation in China. This study searched and screened 572 papers using camera-trapping for wildlife research in the CNKI database, and divided them into three phases according to the publication time: Phase I (1996—2013), Phase II (2013—2018) and Phase III (2019—2021). For 286 documents of wildlife resources investigation, 24 modules were subdivided from three aspects: sampling layout, installation and maintenance, data analysis and report writing, and the changes of scores in different stages were analyzed to explore the influence of economic level (per capita GDP of the province), participation of scientific research institutions such as universities, topography and protected land grade on the use norms. The results showed that the number of papers published in geographical space had expanded from central and south China to southwest China, northwest China and northern China, with southwest China being the hotpot investigation area. Research on resource investigation mainly focused on national and provincial protected areas. There were significant differences between the three phases of the score, with an increasing trend over time, i.e., the use of camera-trapping in China tended to develop in a normative way. However, there were still shortcomings, with many surveys unable to complete the annual cycle of monitoring, a lack of consideration of camera distance and micro-environment in which they located during installation, and a lack of judgement on sampling intensity during data analysis. Correlation analysis showed that the economic level of the provinces had a significant positive correlation with the norms of infrared camera research carried out in each province, mainly in the operation of installation and maintenance. The results of the generalized linear model showed that studies with the involvement of research institutions were more standardized in their operation. In order to better promote the standardization of the use of camera-trapping in wildlife resource investigation in China, the following suggestions were put forward for reference: 1) Strengthening cooperation of nature reserve and research institutions. 2) Increasing the investigation of protected areas and unprotected areas below the provincial level. 3) During the use of camera traps, when there are differences in habitat types, use stratified sampling methods when possible and complete annual cycle surveys; consider and record information on the distance between cameras, small geomorphology and other information; and in data analysis, pay attention to the intensity of the analysis of sampling.