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      Structure of the leaf litter frog community in an area of Atlantic Forest in southeastern Brazil

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          Abstract

          ABSTRACT Different spatial and temporal factors can influence the species richness and abundance of leaf anurans that are fundamental for the ecosystem functioning, as they act as predators and integrate the trophic chain as prey of other animals. There are relatively few studies that aimed to understand the spatio-temporal variation and the influence of environmental factors on leaf litter communities. We studied parameters of the anuran community living in the forest leaf litter in the Duas Bocas Biological Reserve (DBBR), Espírito Santo, Brazil. We sought to understand the extent to which richness, abundance, biomass and density varied between two locations with different stages of preservation (primary and secondary forest). In addition, we tested the effect of temperature and local humidity on abundance. We conducted the samplings monthly from October 2017 to September 2018, establishing 98 4 x 4 m plots (16 m2 each) demarcated on the DBBR forest leaf litter. We measured temperature (°C) and relative air humidity (%), and each plot was carefully surveyed by four observers. We tested for differences in anuran density between the two sampled locations and estimated the effects of environmental variables in the community. We recorded 102 individuals of anurans from 11 species belonging to eight families. The DBBR anuran community parameters significantly differed between the two studied locations, with the highest values of anuran richness and abundance occurring in the area covered by primary forest, probably due to differences in the preservation of each area. However, temperature and humidity did not affect the abundance of anurans in the sampled areas. Our results provide the first information about spatial variation and influence of environmental factors, directed to the community of leaf litter anurans in DBBR, and represents the second study on this group of anurans in the state of Espírito Santo.

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          The social behaviour of anuran amphibians

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            Nonmetric multidimensional scaling: A numerical method

            J. Kruskal (1964)
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              Resource Partitioning in Amphibians and Reptiles

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                Author and article information

                Journal
                zool
                Zoologia (Curitiba)
                Zoologia (Curitiba)
                Sociedade Brasileira de Zoologia (Curitiba, PR, Brazil )
                1984-4670
                1984-4689
                2020
                : 37
                : e38877
                Affiliations
                [2] Rio de Janeiro Rio de Janeiro orgnameUniversidade do Estado do Rio de Janeiro orgdiv1Departamento de Ecologia Brazil
                [1] Vitória ES orgnameCentro Universitário Espírito-Santense orgdiv1Departamento de Biologia Brazil
                Article
                S1984-46702020000100316 S1984-4670(20)03700000316
                10.3897/zoologia.37.e38877
                203d1cb0-f9c5-4bb7-9b7c-a462e35044c8

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 08 August 2019
                : 26 July 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 52, Pages: 0
                Product

                SciELO Brazil

                Self URI: Full text available only in PDF format (EN)
                Categories
                Research Article

                Amphibians,amphibian abundance,tropical forest,frog density,environmental variables

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