Abstract Forest fragments in urban areas have many habitat resources that frogs use for refuge, reproduction and growth. Knowledge of an anuran assembly is the first step towards understanding the importance of these forest fragments in areas highly threatened by anthropogenic actions. We sampled anurans during the day and night from November 2012 to August 2013 through visual and acoustic surveys. We found 333 individuals belonging to 19 species. The highest richness and abundance were recorded in January whereas the lowest richness and abundance were recorded in June. Most species were found in open areas. Our results highlight the importance of well-studied urban fragments for the anuran community. The conservation of these habitats may ensure the viability of the ecological functions of this anuran community for the future.

RESUMO Os anfíbios podem utilizar as bromélias para reprodução (i.e., espécies bromelígenas) ou apenas para refúgio e forrageamento (i.e., espécies bromelícolas). A partição dos recursos de bromélias é essencial para manter a coexistência da assembleia associada. Amostramos 913 bromélias em uma planície costeira arenosa (i.e., restinga) no sudeste do Brasil e encontramos 234 anfíbios pertencentes a sete espécies. Uma espécie de anfíbio é bromelígena e as outras seis espécies são bromelícolas. As bromélias do gênero Aechmea foram as mais frequentemente utilizadas pelos anfíbios. A baixa taxa de ocupação de bromélias (26%) sugere segregação de habitats. Nosso estudo destaca a importância da manutenção de espécies de bromélias para a conservação das assembleias de anfíbios associadas.

ABSTRACT Amphibians may use bromeliads for reproduction (i.e., bromeligenous species) or only for refuge and foraging (i.e., bromelicolous species). The partition of bromeliad resources is essential to maintain the coexistence of the associated assemblages. We sampled 913 bromeliads in a sandy coastal plain (i.e., restinga habitat) in southeastern Brazil and found 234 frogs belonging to seven species. One of the frog species was bromeligenous and the other six were facultative bromelicolous. The bromeliads of the genus Aechmea were the most frequently used by frogs. The low degree of frog occupancy of bromeliads (26%) suggests habitat segregation. Our study highlights the importance of maintenance of bromeliad species for conservation of the associated frog assemblages.