Ecological study of the ocelote (Leopardus pardalis) using the camera trap technique, in Las Piedras Region, Madre de Dios-Peru
2017; Pontifical Catholic University of Peru; Issue: 29 Linguagem: Inglês
ISSN
2311-5734
Autores Tópico(s)Species Distribution and Climate Change
ResumoespanolEste estudio trata sobre la ecologia y conservacion del ocelote (Leopardus pardalis), en la concesion de conservacion y ecoturismo del albergue Amazon Research and Conservation Center - ARCC. El area de estudio, de 11 000 hectareas, se encuentra ubicada en el distrito de Las Piedras, norte de la provincia de Tambopata, departamento de Madre de Dios, Peru. Se utilizaron camaras trampa para monitorear la poblacion del felino en un periodo de siete meses (de agosto de 2012 a febrero de 2013), dividido en nueve rondas donde se instalaron 73 camaras en total. Fueron ocho ocelotes independientes los identificados, de los cuales solo tres (A1, A3 y A6) fueron recapturados visualmente en mas de una ocasion. Se realizo un analisis de captura-recaptura. Las distancias recorridas por los ocelotes entre captura y recaptura se utilizaron para estimar el area efectiva de muestreo usando el metodo del Promedio de la Maxima Distancia Recorrida - MMDM y Mitad del MMDM. Los metodos dieron como resultado una densidad poblacional de 700 ocelotes/100 km2 y 180 ocelotes/100 km2 con MMDM y Mitad del MMDM, respectivamente. Por otro lado, se analizo la probabilidad de captura de las camaras trampa con el software PRESENCE. Utilizando un analisis poblacional cerrado y un modelo constante, se hallo una deteccion por ronda de 0,3 (SE 0,0567). Finalmente, tambien se evaluo la preferencia de habitat de los ocelotes a traves de imagenes satelite. Se hallo que la mayoria de los felinos usan transectos turisticos, que prefieren las llanuras aluviales cercanas a las riberas de los rios y cochas, y que evitan los pantanos. EnglishThe study focuses in the ecology and conservation of the ocelot (Leopardus pardalis) in the conservation and tourism concession owned by the ARCC. The study site is 11 000 hectares and it is located in the Las Piedras Region, north of Tambopata province, Madre de Dios. Camera traps were used to monitor the ocelot population during a 7-month period (from August 2012 to February 2013), divided in 9 rounds were 73 cameras were installed. The camera traps found 8 independent ocelots, from which only 3 (A1, A3 and A6) were recaptured in more than one occasion. The study did a capture-recapture analysis. The distance traveled by the ocelots from a capture to a recapture site was used to estimate the effective sampled area using the Mean Maximum Distance Moved - MMDM and Half MMDM. The methods yielded a density of 70 individuals/100km2 and 180 individuals/100km2, with full MMDM and Half MMDM, respectively. The study also analyzed the camera trap capture probability with PRESENCE software. Using a closed CR analysis followed by a model of constant capture probability, it yielded a capture probability rate of 0,3 (SE 0,0567). Finally, the ocelot’s habitat preference was also studied using a combination of satellite imagery and GIS software. It was found that these animals frequently use transects aimed for tourists, prefer sites near water and that they avoid bamboo forests.
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