Breeding ecology of Scinax trapicheiroi (Anura, Hylidae) at a creek in the Atlantic Rainforest of Ilha Grande, southeastern Brazil

Author(s)

Rico, Miguel ; Rocha, Carlos F. D. ; Borges Junior, Vitor Nelson T. ; Van Sluys, Monique

• Document type: Journal article
• Source: Amphibia-Reptilia; v. 25, n. 3, p. 277-286, 2004.
• Field of knowledge: Biological Sciences - Zoology

Abstract

We analyzed the breeding biology in a population of the hylid Scinax trapicheiroi and evaluated how some environmental and structural factors affect the temporal and spatial distribution of the clutches. Fieldwork was carried out at a small stream running inside the Atlantic Rainforest at Ilha Grande, an island in Rio de Janeiro State, southeastern Brazil, from October 2000 to September 2001. Breeding occurred all year round, but the presence of females and clutches was affected by rain from the previous days. Clutches had an aggregate distribution, because they were mainly laid on lentic waters (with slow water flow). Rain affected the availability, stability and size of ponds. The high numbers of eggs per clutch, and the fast development of eggs and larvae are influenced by an unpredictable environment. (AU)

• FAPESP's process: 99/08291-5 - Diversity and conservation of the reptile fauna in the Southeastern Atlantic Forest
• Grantee: Denise Maria Peccinini Seale
• Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants