Parameters from the community of leaf-litter frogs from Estação Ecológica Estadual Paraíso, Guapimirim, Rio de Janeiro State, southeastern Brazil

Anais da Academia Brasileira de Ciências

Carlos F.d. Rocha¹  Davor Vrcibradic¹  Mara C. Kiefer¹  Carla C. Siqueira¹  Mauricio Almeida-gomes¹  Vitor N.t. Borges Júnior¹  Fábio H. Hatano¹  Angélica F. Fontes¹  Jorge A.l. Pontes¹  Thais Klaion¹  Lívia O. Gil¹  Monique Van Sluys¹ 

[1] ,Universidade do Estado do Rio de Janeiro Instituto de Biologia Roberto Alcântara Gomes Departamento de EcologiaRio de Janeiro RJ ,Brasil

关键词: Amphibia;    Atlantic Forest;    Brazil;    community parameters;    density;    leaf-litter;    Anfíbios;    Mata Atlântica;    Brasil;    parâmetros da comunidade;    densidade;    folhiço;   

DOI  :  10.1590/S0001-37652011005000036

来源: SciELO

【 摘 要 】

We studied the leaf-litter frog community of Estação Ecológica Estadual Paraíso, in Guapimirim, Rio de Janeiro State, southeastern Brazil. Herein we combined three sampling methods (large plots, visual encounter surveys and pit-fall traps) to present data on species composition, richness, relative abundance and densities. The local assemblage of frogs associated to the leaf-litter was composed by 14 species, belonging to nine families. Haddadus binotatus, a direct-developing frog, was the most abundant species in the community. The estimated density of the local leaf-litter frog assemblage based on plot sampling was 4.3 frogs/100 m². Haddadus binotatus had the highest density (1.1 ind/100 m²). Frogs were predominantly found at night. Thoropa miliaris had the largest values of SVL (39.0 ± 10.3 mm), whereas the smallest species were Euparkerella brasiliensis (16.7 ± 2.2 mm) and E. cochranae (16.0 ± 2.7 mm). Rhinella ornata had the highest mean body mass (12.1 ± 7.5 g), and E. cochranae the lowest (0.4 ± 0.2 g). The overall frog mass was 938.6 g/ha. Our data support that higher densities of leaf-litter frogs tend to occur in the Neotropical region compared to the OldWorld tropics, tending to be higher in Central America than in South America.

【 授权许可】

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