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Audiospectogram (A) and oscillogram (B) of the advertisement calls of three congeneric Leptodactylus spp. that are synchronopatric in Manaus, Amazonas, northern Brazil. Audiospectogram (C) and oscillogram (D) of the advertisement calls of sympatric Ischnocnema sp. and Phyllodytes luteolus synchronopatric at Serra do Guararu, Guarujá, São Paulo, in southeastern Brazil.
