Reproductive biology of Dendropsophus haddadi (Bastos and Pombal, 1994), a small treefrog of the Atlantic forest

Nelson Rodrigues da Silva

Abstract


Abstract. Terrestrial reproduction has evolved at least 48 times in the evolutionary history of anurans. Most species in the genus Dendropsophus deposit eggs in water, but some, including Dendropsophus haddadi, lay terrestrial eggs. This species is restricted to the Atlantic forest in Brazil and here in, we describe its reproductive biology. Individuals were observed at a height of 3-5 meters on vegetation at the edge of temporary pools. Males are territorial and engaged in physical combats. Clutches were found at the margins of temporary ponds on trunks, leaves and branches. The number of hatchlings correlated with clutch size, as well as with number of eggs. Our observations suggest that females may hydrate clutches following oviposition in absence of rain. If confirmed, this form of parental care would be a novelty for the genus. The Atlantic forest harbours an extremely rich frog diversity, however information on species natural history is scarce, which may hamper conservation actions and decisions.


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