Abstract
Ten families of anurans comprising at least 1000 species are known from South America. The diversity of reproductive modes among these amphibians is higher than in any other group of vertebrates. Duellman (1985) defined reproductive mode as a composite of factors, including oviposition site, ovum and clutch characteristics, rate and duration of development, stage and size of hatchling, and type of parental care. Of the 29 modes he recognized, 21 are found in the Neotropics, and, of these, eight are unique to that area.
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