Feeding habits, microhabitat use, and daily activity of Cycloramphus brasiliensis (Anura: Cycloramphidae) from the Atlantic Rainforest, Brazil
2012
Thiago Maia-Carneiro | Thiago A. Dorigo | Mauricio Almeida-Gomes | Monique Van Sluys | Carlos F.D. Rocha
We analyzed the feeding habits, microhabitat use, and daily activity period of the anuran species Cycloramphus brasiliensis (Steindachner, 1864), endemic to the Atlantic Rainforest biome. The only previous studies on this species focused on the systematics and new altitudinal records. This study was conducted in a large forest remnant located in the municipalities of Guapimirim and Cachoeiras de Macacu. We captured frogs through visual encounter surveys and recorded the frequency of microhabitat types used by them, and the time of capture. Diet was analyzed in terms of number, volume and frequency of occurrence of items. Individuals of C. brasiliensis occurred in association with fast-moving rocky portions of clear freshwater rivers, indicating a rheophilic habit, and were active mainly at night. Such as most anuran species, the diet of Cycloramphus brasiliensis was mainly based on arthropods, and included Blattodea, Formicidae, and Coleoptera as most important prey items.
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