IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| Caruso, N.; Manfredi, C.; Vidali, E.M.L.; Casanaveao, E.B.; Lucherinio, M. | |
| First density estimation of two sympatric small cats, _Leopardus colocolo _and _Leopardus geoffroyi_, in a shrubland area of central Argentina | |
| 2012 Annales Zoologici Fennici (49): 181-191 | |
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 denisty 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./100km2 and 11.34-17.58 indiv./100km2 respectively. The density estimated using SECR models was 45 animals/100km2 for Geoffroy's cat, whereas we were unable to produce a reliable estimate for the Pampas cat. The SECR estiamte for Geoffroy's cat is more similar to that obtained from telemetry data (58.82 cats/100km2). In agreement with the hypothesis of its geater adaptability. Geoffroy's cat was more abundant than the Pampas cat. |
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