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FEEDING HABITS OF THE MANED WOLF (Chrysocyon brachyurus) IN THE BRAZILIAN CERRADO

2007; SAREM; Volume: 14; Issue: 1 Linguagem: Inglês

ISSN

1666-0536

Autores

Flávio Henrique Guimarães Rodrigues, Adriani Hass, Marcelo Araujo Bagno, Alexandra Maria Ramos Bezerra, Wesley Rodrigues Silva,

Tópico(s)

Wildlife Ecology and Conservation

Resumo

The maned wolf feeds mainly on fruits and small vertebrates. The diet of maned wolf was studied at Aguas Emendadas Ecological Station (AEES) through 328 faecal samples collected from November 1996 to August 1999. To evaluate the seasonal variation in food availability, the fruit phenology of the wolf's fruit, the main food item in maned wolf's diet, was monitored counting the fruits produced in 20 marked plants. Fruc- tification phenology of fleshy fruit plants in the cerrado habitat of AEES was recorded moni- toring five plots of 100 x 20 m, where the number of fruit producing species and individuals were recorded. The diet composition was 60% vegetal items and 40% animal ones. The wolf's fruit, other fruits and small mammals were the most frequent consumed categories, but armadillos, wolf's fruit, medium size mammals, and small mammals were the most important categories considering biomass. Maned wolves are generalist, with a broad diet, and consume most of the food items according to their availability. However, wolves are selective with regard to some food items, particularly the wolf's fruit during the dry season. RESUMEN: Habitos alimentarios del aguara guazu (Chrysocyon brachyurus) en el dominio del Cerrado, Brasil. El aguara guazu se alimenta principalmente de frutos y vertebrados pequenos. Si bien se ha obtenido mucha informacion acerca de la dieta del aguara guazu, datos sobre la ecologia trofica de esta especie en reservas pequenas del Cerrado son importantes para establecer estrategias de conservacion. Se estudio la dieta del aguara guazu en la Estacion Ecologica de Aguas Emendadas (EEAE) a traves de 328 muestras de heces colectadas entre noviembre de 1996 y agosto de 1999. Para evaluar la variacion estacional en la disponibilidad de alimentos se analizo la fenologia frutal de Solanum lycocarpum, el principal componente de la dieta de este canido, contando los frutos producidos en 20 plantas marcadas. Se estudio la fenologia de fructificacion de plantas con frutos carnosos en el ambiente de Cerrado de la EEAE en cinco parcelas de 100 x 20 m, registrandose el numero de especies productoras de frutos y sus individuos. La composicion de la dieta fue de 60% de items vegetales y de 40% de items animales. Solanum lycocarpum, otros frutos y los micromamiferos fueron las categorias consumidas con mayor frecuencia, pero considerando la biomasa las categorias mas importantes fue- ron los armadillos, el Solanum lycocarpum y los mamiferos medianos y pequenos. El aguara guazu es generalista, con una dieta amplia, consumiendo la mayor parte del ali-

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