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Revista Brasileira de Zoologia

Print version ISSN 0101-8175

Rev. Bras. Zool. vol.12 no.2 Curitiba  1995 

Reproductive behavior of Cycloramphus dubius Miranda-Ribeiro (Amphibia, Anura, Leptodactylidae)



Ariovaldo A. Giaretta; Adão J. Cardoso

Departamento de Zoologia. Universidade Estadual de Campinas. Caixa Postal 6109, 13083-970 Campinas, São Paulo, Brasil




Cycloramphus dubius Miranda-Ribeiro. 1920 is a frog species from the coastal Atlantic Forest in Southeastern Brazil. It uses waterfalls of forested rivulets as breeding sites. The eggs are placed outside of water, between rock crevices or roots constantly wetted by water dripping. Clutches have about 60 eggs, and the tadpoles grow attached to rocks, out of water. Males of this species exhibit parental care, biting and/or pushing away strange objects approaching the egg masses. Two types of calls were identified in the spectrograms. The "advertisement calls" consist of juxtaposed pulses lasting 200ms; the "aggressive calls", also have the short pulses structure, and last around 300ms. The aggressive calls are emitted during territorial invasion.

Key words: Amphibia. Anura, Atlantic Forest, breeding site, territoriality, parental care


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ACKNOWLEDGMENTS. W.W. Benson and W.R. Heyer provided comments on early drafts: E. Ramirez helped the field works: I. Sazima made the black and white pictures from slides: C.F.B. Haddad presented helpful comments K. Facure helped in the project. FAPESP financially supported the study (Grant IC 89/2628-6 to AAG and AP 86/2455-6 to AJC) and the Smithsonian Institution (Short Term Visitor Program) permitted examination of the original records of C. dubius and C. boracciencis.



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Recebido em 20.XI.1994; aceito em 25.VI.1995.

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