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RESUMEN Los mamiferos carnivoros desempenan un rol importante en la estructura de las comunidades; sin embargo, los estudios sobre este grupo son complicados debido a sus estilos de vida, por lo que aun existen vacios de informacion biologica. En este estudio se utilizaron trampas camara en cuatro localidades de la costa central de Oaxaca, Mexico. El trabajo se efectuo de septiembre de 2009 a agosto de 2010, con un esfuerzo total de 1012 dias/trampa. Se obtuvieron 160 registros fotograficos independientes de ochos especies de mamiferos carnivoros y respecto a las presas potenciales se registraron cinco especies de mamiferos, dos especies de reptiles y dos grupos (aves y ratones). De acuerdo al Indice de Abundancia Relativa obtenido, los carnivoros mas abundantes fueron Spilogale pygmaea, Urocyon cinereoargenteus y Nasua narica , mientras que las presas potenciales mas abundantes fueron Didelphis virginiana, Dasypus novemcinctus y el grupo de los ratones. El patron de actividad de las especies registradas mostro que el 73.8% son de habitos nocturnos. El ganado vacuno de libre pastoreo mostro una abundancia que podria tener impactos en el ambiente natural y el nivel de recursos disponibles para la fauna silvestre de la region. Palabras clave: Camaras-trampa, Carnivora, Oaxaca, patron de actividad, Tututepec. ABSTRACT Carnivorous mammals play an important role on the community structure, however information gaps exist on their current situation debt to their nocturnal habits, evasive behavior and low population densities. In this study, we used camera traps to obtain records of mammal carnivores and their potential prey in four localities in the coastal central of Oaxaca, Mexico. The study was conducted from September 2009 to August 2010, with a total sampling effort of 1,012 trap/days. We obtained 160 independent photographs records of eights carnivorous mammal species and regarding potential prey we obtained five mammals species, two reptile species and two groups (birds and mice). According with the two Relative Abundance Index obtained Spilogale pygmaea, Urocyon cinereoargenteus y Nasua narica were the most abundant carnivorous mammals while that Didelphis virginiana, Dasypus novemcinctus and the mice group were the most abundant potential prey. The activity patterns of the species showed that 73.8% of them are nocturnal. The free range cattle showed an abundance that could have impacts in the natural environment and the level of resources available for the wildlife in the region. Key words: Camera-traps, Carnivora, Oaxaca, activity patterns, Tututepec.

<b>MAMÍFEROS CARNÍVOROS DEL PARQUE NACIONAL LAGUNAS DE CHACAHUA, OAXACA, MÉXICO: RIQUEZA, ABUNDANCIA Y PATRONES DE ACTIVIDAD<b>