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Puma Puma concolor density estimation in the Mediterranean Andes of Chile

  • Nicolás Guarda (a1), Nicolás Gálvez (a1), Jorge Leichtle (a1), Christian Osorio (a1) and Cristian Bonacic (a1)...

Knowledge about the puma Puma concolor in the Mediterranean Andes of South America is scarce, with little information available about its distribution and ecology. The species has been hunted in the region for centuries and seems to be relegated to remote areas, where it still comes into conflict with rural communities. Camera-trap surveys have been used to estimate puma density across the species’ distribution, and this is a relatively cost-effective approach to generate information about species abundance. We tested the performance of this method in the Andes of central Chile, where the rugged topography, unknown detection probability, and an expected low density make abundance estimation by other methods unreliable or expensive. Using a rotation of 17 camera-trap stations, for a total of 680 camera-days, we obtained 16 records of pumas and were able to identify four individuals in an effective sampling area of 628 km2 (1/2 mean maximum distance moved) or 1,518 km2 (mean maximum distance moved). Capture–recapture models estimated a minimum density of 0.3 ± SE 0.07 to 0.75 ± SE 0.17 adult pumas per 100 km2. This is the first estimate of the density of the puma in the Mediterranean Andes, and one of the lowest reported for the Neotropics. Although this low abundance does not necessarily imply a threat to the species, it suggests that the population is potentially vulnerable to threats such as illegal hunting. Our findings demonstrate that camera trapping is an effective technique in difficult field conditions and may be the most appropriate method to assess puma densities in this region.

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* Also at: Department of Natural Sciences and Centre for Local Development, Pontificia Universidad Católica de Chile, Campus Villarrica, Chile
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Baillargeon, S. & Rivest, L.P. (2014) Rcapture: loglinear models for capture–recapture experiments. R package v. 1.4-2. Https:// [accessed 18 November 2015].
Chapron, G., Miquelle, D.G., Lambert, A., Goodrich, J.M., Legendre, S. & Clobert, J. (2008) The impact on tigers of poaching versus prey depletion. Journal of Applied Ecology, 45, 16671674.
Culver, M., Johnson, W.E., Pecon-Slattery, J. & O'Brien, S.J. (2000) Genomic ancestry of the American puma (Puma concolor). Journal of Heredity, 91, 186197.
Elbroch, L.M. & Wittmer, H.U. (2012) Puma spatial ecology in open habitats with aggregate prey. Mammalian Biology—Zeitschrift für Säugetierkunde, 77, 377384.
Foster, R.J. & Harmsen, B.J. (2012) A critique of density estimation from camera-trap data. The Journal of Wildlife Management, 76, 224236.
Franklin, W.L., Johnson, W.E., Sarno, R.J. & Iriarte, J.A. (1999) Ecology of the Patagonia puma Felis concolor patagonica in southern Chile. Biological Conservation, 90, 3340.
Jackson, R.M., Roe, J.D., Wangchuk, R. & Hunter, D.O. (2006) Estimating snow leopard population abundance using photography and capture–recapture techniques. Wildlife Society Bulletin, 34, 772781.
Karanth, K.U. & Nichols, J.D. (1998) Estimation of tiger densities in India using photographic captures and recaptures. Ecology, 79, 28522862.
Kelly, M.J., Noss, A.J., Di Bitetti, M.S., Maffei, L., Arispe, R.L., Paviolo, A. et al. (2008) Estimating puma densities from camera trapping across three study sites: Bolivia, Argentina, and Belize. Journal of Mammalogy, 89, 408418.
Maffei, L. & Noss, A.J. (2008) How small is too small? Camera trap survey areas and density estimates for ocelots in the Bolivian Chaco. Biotropica, 40, 7175.
MINSEGPRES (2012) Decreto Supremo 42/2012. Ministerio Secretaría General de la Presidencia, Government of Chile, Santiago, Chile.
Negrões, N., Sarmento, P., Cruz, J., Eira, C., Revilla, E., Fonseca, C. et al. (2010) Use of camera-trapping to estimate puma density and influencing factors in Central Brazil. The Journal of Wildlife Management, 74, 11951203.
Paviolo, A., Di Blanco, Y.E., De Angelo, C.D. & Di Bitetti, M.S. (2009) Protection affects the abundance and activity patterns of pumas in the Atlantic Forest. Journal of Mammalogy, 90, 926934.
Quantum GIS Development Team (2014) Quantum GIS Geographic Information System. Open Source Geospatial Foundation Project. Http://
R Development Core Team (2015) R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing, Vienna, Austria.
Ripple, W.J. & Beschta, R.L. (2008) Trophic cascades involving cougar, mule deer, and black oaks in Yosemite National Park. Biological Conservation, 141, 12491256.
Ripple, W.J., Estes, J.A., Beschta, R.L., Wilmers, C.C., Ritchie, E.G., Hebblewhite, M. et al. (2014) Status and ecological effects of the world's largest carnivores. Science, 343, 1241484.
Royle, J.A. & Gardner, B. (2011) Hierarchical spatial capture–recapture models for estimating density from trapping arrays. In Camera Traps in Animal Ecology: Methods and Analyses (eds A.O'Connell, F., Nichols, J.D. & Karanth, K.U.), pp. 163190. Springer, Tokyo, Dordrecht, Heidelberg, London, New York.
Soisalo, M.K. & Cavalcanti, S.M.C. (2006) Estimating the density of a jaguar population in the Brazilian Pantanal using camera-traps and capture–recapture sampling in combination with GPS radio-telemetry. Biological Conservation, 129, 487496.
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  • ISSN: 0030-6053
  • EISSN: 1365-3008
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