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      Parque Nacional da Serra dos Órgãos: the highest Amphibian diversity within an Atlantic Forest protected area Translated title: Parque Nacional da Serra dos Órgãos: a maior diversidade de anfíbios em uma área de proteção da Mata Atlântica

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          Abstract

          Abstract: We studied the amphibian community of the Parque Nacional da Serra dos Órgãos (PARNASO) for over thirty years. The area of 20,024 hectares has a steep altitudinal gradient (200-2,263 m a.s.l.), and it is located in the municipalities of Guapimirim, Magé, Petrópolis and Teresópolis, middle of the state of Rio de Janeiro, Brazil. Most data were obtained from sampling sites in the municipality of Teresópolis, with additional data from zoological collections and bibliography. We recorded 83 amphibian species distributed in two orders, Anura, 13 families: Aromobatidae (1), Brachycephalidae (11), Bufonidae (5), Centrolenidae (2), Craugastoridae (2), Cycloramphidae (8), Hemiphractidae (7), Hylidae (28), Hylodidae (6), Leptodactylidae (5), Microhylidae (1), Odontophrynidae (3), Phyllomedusidae (3) and Gymnophiona, one family: Siphonopidae (1). In addition, we present six species that occurs in the buffer zone. Ten of these species are endemic of the park, 18 have PARNASO as its type locality, and five the type locality is at the buffer zone.

          Translated abstract

          Resumo: Estudamos a comunidade de anfíbios do Parque Nacional da Serra dos Órgãos (PARNASO) por mais de 30 anos. A área de 20.024 hectares possui um gradiente altitudinal de 200 a 2.263m acima do nível do mar, e está localizada nos municípios de Guapimirim, Magé, Petrópolis e Teresópolis, que ficam no meio do estado do Rio de Janeiro, Brasil. A maioria das coletas foram feitas no município de Teresópolis, com dados adicionais de outras coleções zoológicas e de bibliografia. Foram registradas ao todo 83 espécies de anfíbios distribuídos em duas ordens, Anura, 13 famílias: Aromobatidae (1), Brachycephalidae (11), Bufonidae (5), Centrolenidae (2), Craugastoridae (2), Cycloramphidae (8), Hemiphractidae (7), Hylidae (28), Hylodidae (6), Leptodactylidae (5), Microhylidae (1), Odontophrynidae (3), Phyllomedusidae (3) e Gymnophiona, uma família: Siphonopidae (1). Foram registradas, também, seis espécies que ocorrem na zona de amortecimento. Destas espécies 10 são endêmicas, 18 têm o PARNASO como localidade tipo e cinco têm a localidade tipo na zona de amortecimento.

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          The species-accumulation curve and estimation of species richness

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            Comparative performance of species richness estimation methods.

            In most real-world contexts the sampling effort needed to attain an accurate estimate of total species richness is excessive. Therefore, methods to estimate total species richness from incomplete collections need to be developed and tested. Using real and computer-simulated parasite data sets, the performances of 9 species richness estimation methods were compared. For all data sets, each estimation method was used to calculate the projected species richness at increasing levels of sampling effort. The performance of each method was evaluated by calculating the bias and precision of its estimates against the known total species richness. Performance was evaluated with increasing sampling effort and across different model communities. For the real data sets, the Chao2 and first-order jackknife estimators performed best. For the simulated data sets, the first-order jackknife estimator performed best at low sampling effort but, with increasing sampling effort, the bootstrap estimator outperformed all other estimators. Estimator performance increased with increasing species richness, aggregation level of individuals among samples and overall population size. Overall, the Chao2 and the first-order jackknife estimation methods performed best and should be used to control for the confounding effects of sampling effort in studies of parasite species richness. Potential uses of and practical problems with species richness estimation methods are discussed.
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              Changes in the composition of mountain stream frog communities in the Atlantic mountains of Brazil: Frogs as indicators of environmental deteriorations?

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                Author and article information

                Journal
                bn
                Biota Neotropica
                Biota Neotrop.
                Instituto Virtual da Biodiversidade | BIOTA - FAPESP (Campinas, SP, Brazil )
                1676-0611
                2020
                : 20
                : 3
                : e20201033
                Affiliations
                [2] Rio de Janeiro Rio de Janeiro orgnameUniversidade Federal do Estado do Rio de Janeiro orgdiv1Departamento de Zoologia Brazil
                [3] Rio de Janeiro Rio de Janeiro orgnameUniversidade Federal do Rio de Janeiro orgdiv1Museu Nacional orgdiv2Departamento de Vertebrados Brazil
                [1] Rio de Janeiro Rio de Janeiro orgnameUniversidade Federal do Rio de Janeiro orgdiv1Instituto de Biologia orgdiv2Departamento de Zoologia Brazil
                [4] Rio de Janeiro Rio de Janeiro orgnameUniversidade Federal Rural do Rio de Janeiro orgdiv1Instituto de Biologia orgdiv2Departamento de Biologia Animal Brazil
                Article
                S1676-06032020000300306 S1676-0603(20)02000300306
                10.1590/1676-0611-bn-2020-1033
                86673399-4bd9-4e0d-8269-5f3886ec675e

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

                History
                : 29 April 2020
                : 29 July 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 63, Pages: 0
                Product

                SciELO Brazil

                Categories
                Inventory

                Anura,disappeared species,Mata Atlântica,conservação,endemic species,inventário,biodiversidade,species richness,área montanhosa,biodiversity,riqueza de espécies,espécies endêmicas,espécies desaparecidas,conservation

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