Utilização de habitats reproduttvos e micro-habitats de vocalização em uma taxocenose de anuros (amphibia) da mata atlântic a do sudeste do Brasil

Abstract

Breeding and calling site utilization were studied for an anuran community of the Parque Estadual Intervales, an Atlantic Rainforest reserve located in Southeastern Brazil (24°12′-24°25′S, 48°03′-48°30′W). Field work was carried out between April 1990 and. March 1991. Forty-seven species from four families were recorded in the study site: Bufonidae (4), Hylidae (24), Leptodactylidae (18), find Microhylidae (1). We were able to obtain data on breeding habitat and microhabitat distribution for 26 species by monitoring six breeding sites year-round. on a monthly basis. The number of species in the sites varied from 7 to 22. Species were classified as habitat generalists and specialists based on breeding site utilization. Most species showed preferences for certain calling sites. For some species calling site specificity seemed to depend, on the density of the male aggregations rather than on the species composition of the assemblages.