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1 June 2012 First Density Estimation of Two Sympatric Small Cats, Leopardus colocolo and Leopardus geoffroyi, in a Shrubland Area of Central Argentina
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Abstract

Geoffroy's and Pampas cats are small felids with large distribution ranges in South America. A camera trap survey was conducted in the Espinal of central Argentina to estimate abundance based on capture—recapture data. For density estimations we used both non-spatial methods and spatially explicit capture—recapture models (SECR). For Geoffroy's cat we also obtained density estimates from 8 radio-tracked individuals. Based on the data on 10 Geoffroy's cats and 7 Pampas cats, non-spatial methods produced density ranges of 16.21–21.94 indiv./100 km2 and 11.34–17.58 indiv./100 km2, respectively. The density estimated using SECR models was 45 animals/100 km2 for Geoffroy's cat, whereas we were unable to produce a reliable estimate for the Pampas cat. The SECR estimate for Geoffroy's cat is more similar to that obtained from telemetry data (58.82 cats/100 km2). In agreement with the hypothesis of its greater adaptability, Geoffroy's cat was more abundant than the Pampas cat.

© Finnish Zoological and Botanical Publishing Board 2012
Nicolás Caruso, Claudia Manfredi, Estela M. Luengos Vidal, Emma B. Casanaveo, and Mauro Lucherinio "First Density Estimation of Two Sympatric Small Cats, Leopardus colocolo and Leopardus geoffroyi, in a Shrubland Area of Central Argentina," Annales Zoologici Fennici 49(3), (1 June 2012). https://doi.org/10.5735/086.049.0306
Received: 5 August 2011; Accepted: 1 January 2012; Published: 1 June 2012
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