Estimating Snow Leopard Population Abundance Using Photography and Capture–Recapture Techniques

Autor:	Jerry D. Roe, Rinchen Wangchuk, Don O. Hunter, Rodney M. Jackson
Rok vydání:	2006
Předmět:	National park Ecology Population size Panthera uncia Sampling (statistics) fictional_universe fictional_universe.character_species Mark and recapture Geography Abundance (ecology) Snow leopard Camera trap Physical geography Nature and Landscape Conservation
Zdroj:	Wildlife Society Bulletin. 34:772-781
ISSN:	1938-5463 0091-7648
DOI:	10.2193/0091-7648(2006)34[772:eslpau]2.0.co;2
Popis:	Conservation and management of snow leopards (Uncia uncia) has largely relied on anecdotal evidence and presence–absence data due to their cryptic nature and the difficult terrain they inhabit. These methods generally lack the scientific rigor necessary to accurately estimate population size and monitor trends. We evaluated the use of photography in capture–mark–recapture (CMR) techniques for estimating snow leopard population abundance and density within Hemis National Park, Ladakh, India. We placed infrared camera traps along actively used travel paths, scent-sprayed rocks, and scrape sites within 16- to 30-km2 sampling grids in successive winters during January and March 2003–2004. We used head-on, oblique, and side-view camera configurations to obtain snow leopard photographs at varying body orientations. We calculated snow leopard abundance estimates using the program CAPTURE. We obtained a total of 66 and 49 snow leopard captures resulting in 8.91 and 5.63 individuals per 100 trap-nights du...
Databáze:	OpenAIRE
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