Using a general index approach to analyze camera-trap abundance indices

Bengsen, Andrew J., Leung, Luke K-P., Lapidge, Steven J., and Gordon, Iain J. (2011) Using a general index approach to analyze camera-trap abundance indices. Journal of Wildlife Management, 75 (5). pp. 1222-1227.

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The lack of variance estimates constrain the utility of abundance indices calculated from camera-trap data. We adapted a General Index model, which allows variance estimation, to analyze camera-trap observations of feral pigs (Sus scrofa) for population monitoring in a tropical rainforest. We tested whether the index would respond to population manipulation, and found that it decreased by 57% following removal of 24 pigs and remained low in the following period. Our method is useful for monitoring other large animals in difficult landscapes, and the model can be used to enhance the value of existing data sets.

Item ID: 42424
Item Type: Article (Research - C1)
ISSN: 1937-2817
Keywords: abundance index, camera trap, feral pig, remote monitoring, Sus scrofa, Wet Tropics
Funders: CSIRO Sustainable Ecosystems, Invasive Animals Cooperative Research Centre (IACRC)
Date Deposited: 03 Feb 2016 15:12
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050211 Wildlife and Habitat Management @ 100%
SEO Codes: 96 ENVIRONMENT > 9604 Control of Pests, Diseases and Exotic Species > 960404 Control of Animal Pests, Diseases and Exotic Species in Forest and Woodlands Environments @ 100%
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