A granular view of a snow leopard population using camera traps in Central China. (May 2016)

• Record Type: Journal Article
• Authors: Alexander, Justine S.; Zhang, Chengcheng; Shi, Kun; Riordan, Philip
• Is Part Of: Biological conservation. Volume 197(2016)
• Page Start: 27
• Page End: 31
• Publication Date: 2016-05
• Subjects: Snow leopard -- Camera trap -- China -- Density -- Monitoring; Conservation of natural resources -- Periodicals; Nature conservation -- Periodicals; Ecology -- Periodicals; Environment -- Periodicals; Environmental Pollution -- Periodicals; Electronic journals; 333.9516
• DOI: 10.1016/j.biocon.2016.02.023
• Languages: English
• ISSNs: 0006-3207

Abstract

Abstract: Successful conservation of the endangered snow leopard ( Panthera uncia ) relies on the effectiveness of monitoring programmes. We present the results of a 19-month camera trap survey effort, conducted as part of a long-term study of the snow leopard population in Qilianshan National Nature Reserve of Gansu Province, China. We assessed the minimum number of individual snow leopards and population density across different sampling periods using spatial capture–recapture methods. Between 2013–2014, we deployed 34 camera traps across an area of 375 km 2, investing a total of 7133 trap-days effort. We identified a total number of 17–19 unique individuals from photographs (10–12 adults, five sub-adults and two cubs). The total number of individuals identified and estimated density varied across sampling periods, between 10–15 individuals and 1.46–3.29 snow leopards per 100 km 2 respectively. We demonstrate that snow leopard surveys of limited scale and conducted over short sampling periods only present partial views of a dynamic and transient system. We also underline the challenges in achieving a sufficient sample size of captures and recaptures to assess trends in snow leopard population size and/or density for policy and conservation decision-making. Highlights: We assessed the number of individual snow leopards and population density through a 19-month camera trap survey using spatial capture–recapture methods in Central China. The total number of individuals identified and estimated density varied across sampling periods, between 10 and 15 individuals and 1.46–3.29 snow leopards per 100 km 2 respectively. We demonstrate that snow leopard surveys of limited scale and conducted over short sampling periods only present partial views of a dynamic and transient system.