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Puma density, habitat use, and activity patterns across a mosaic landscape of ranches, game reserves, and a protected area in central Argentina

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Abstract

Human-carnivore conflict can lead to serious reduction and even extirpation of top predators when management policies are inadequate or are absent. This is especially true in central Argentina where a few small protected areas are interspersed within a mosaic of ranches and game reserves. We used camera-trapping surveys and spatial mark–resight models, to reanalyze, estimate, and compare puma (Puma concolor) densities among these three different land-use types. We also used an occupancy modeling framework to determine drivers of puma habitat use. We used kernel density estimation to determine if land use altered puma daily activity patterns across sites. Puma density estimates (D ± SE) in cattle ranches and one game reserve were lower (1.00 ±0.36 and 1.38 ±0.91 pumas per 100 km2, respectively) than in the protected area (4.90 ±1.51 pumas per 100 km2) but CIs were wide. Puma detection was the lowest in the game reserve. Puma habitat use increased strongly with vegetation cover and probability of detection was negatively influenced by cattle encounter rates. Pumas were mostly nocturnal with some crepuscular activity in ranches and game reserve, and cathemeral in the protected area. Our results suggest that pumas likely seek refuge in protected areas and relax timing of activity there, information relevant to management plans designed to prevent puma decline or extirpation in central Argentina.

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Data availability

The datasets generated during and/or analyzed during the current study are available in the CONICET Digital Repository, [https://ri.conicet.gov.ar/].

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Acknowledgements

Thanks to M. Dolsán for help during field work. I. Zuazagoitia and A. Pedrajas deserve thanks for data entry and identifying species. Ben Augustine provided help in understanding, appropriately developing, and running statistical models. Finally, to property owners and "gauchos" of ranches for their help and permission to conduct the surveys.

Funding

This study was funded by the Department of Natural Resources of La Pampa province. JIZM was supported by a CONICET (Argentina) postdoctoral fellowship during sampling period and by Bec.Ar (Argentina) and Virginia Tech (Department of Fish and Wildlife Conservation) scholarships during the analysis and writing of the manuscript. ECI was supported by a CONICET (Argentina) postdoctoral fellowship and a FONDECYT Postdoctoral (Nº 3190160) project.

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Contributions

J.I.Z.M., E.C.I., M.J.K., and A.T. designed the study. J.I.Z.M. and E.C.I. wrote the main manuscript text with inputs from M.J.K., A.T., and D.C.M. J.I.Z.M. and A.P.M. carried out fieldwork. J.I.Z.M., E.C.I., M.J.K., and A.T. designed and performed the data analyses. All authors reviewed the manuscript.

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Correspondence to Juan I. Zanón Martínez.

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The authors have no relevant financial or non-financial interests to disclose. The authors have no competing interests to declare that are relevant to the content of this article. All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest or non-financial interest in the subject matter or materials discussed in this manuscript. The authors have no financial or proprietary interests in any material discussed in this article.

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Appendix S2

. Examples of photographs of a) individually identified pumas, and (b) marked but not unambiguously identifiable individuals in Cattle Ranches, central Argentina, from camera trap surveys. (TIF 1271 kb)

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Zanón Martínez, J.I., Iranzo, E.C., Travaini, A. et al. Puma density, habitat use, and activity patterns across a mosaic landscape of ranches, game reserves, and a protected area in central Argentina. Eur J Wildl Res 69, 89 (2023). https://doi.org/10.1007/s10344-023-01717-8

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  • DOI: https://doi.org/10.1007/s10344-023-01717-8

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