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Type: Artigo de periódico
Title: Diversity and abundance of titter frogs in a montane forest of southeastern Brazil: Seasonal and altitudinal changes
Author: Giaretta, AA
Facure, KG
Sawaya, RJ
Meyer, JHD
Chemin, N
Abstract: We sampled litter frogs in an 1800-ha mid-elevation seasonal forest in southeast ern Brazil. One hundred 8 x 8-m plots were sampled during the dry/cold season and wet/warm season (unburned areas); we also examined the effects of fire in recently burned areas. A total of 267 frogs (305 g), belonging to 16 species (4 families) were caught. A single species comprised 78.5 percent of the individuals in the dry/cold season and 54.3 percent in the wet/warm season. The density of individuals did not change significantly with season, biomass did. Density and biomass of frogs were positively correlated with altitude. A Mantel test indicated chat biological data (species and their abundance) were significantly associated with environmental parameters. The burned areas showed low values in richness, density and biomass of frogs. Harsh seasonal climate and a history of human disturbance may produce the low observed diversity values. The greater densities of frogs in sites of higher elevation may primarily result from mist-generated humidity, which diminishes the harshness of the dry/cold season in relation to lower sites.
Subject: abundance
altitudinal changes
Brachycephalus ephippium
cloud forest
Eleutherodactylus spp.
fire effects
human disturbance
litter frog assemblage
seasonal changes
seasonal forest
southeastern Brazil
species diversity
Country: EUA
Editor: Wiley-blackwell
Citation: Biotropica. Wiley-blackwell, v. 31, n. 4, n. 669, n. 674, 1999.
Rights: fechado
Identifier DOI: 10.1111/j.1744-7429.1999.tb00416.x
Date Issue: 1999
Appears in Collections:Unicamp - Artigos e Outros Documentos

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