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      Diversidad de anfibios y reptiles de la Reserva de la Biosfera Barranca de Metztitlán, Hidalgo, México Translated title: Diversity of amphibians and reptiles from the Barranca de Metztitlán Biosphera Reserve in Hidalgo, Mexico

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          Abstract

          La Reserva de la Biosfera Barranca de Metztitlán (RBBM) es una extensa área protegida (96 042.94 ha) de la zona centro del estado de Hidalgo, México. La reserva es bien conocida por su flora endémica, pero existe poca información disponible sobre su herpetofauna. En este estudio se examina la biodiversidad de la comunidad de anfibios y reptiles que habitan en cada uno de los 4 tipos de vegetación de la reserva: bosque de pino-encino, bosque tropical caducifolio, matorral submontano y matorral xerófilo. El trabajo de campo se llevó a cabo entre junio de 2006 y agosto de 2007, periodo de estación de lluvias y secas. En total, se registran 7 especies de anfibios y 31 de reptiles para la RBBM, distribuidas en 14 familias y 29 géneros. En todos los tipos de vegetación, la riqueza de especies de reptiles fue mayor en la estación de lluvias, mientras que la de especies de anfibios fue mayor en la de secas. Entre los tipos de vegetación, el bosque tropical caducifolio exhibió la diversidad y riqueza de especies más grande de anfibios y reptiles. El bosque de pino-encino presentó la mayor equidad y diversidad de especies que los otros tipos de vegetación. El matorral xerófilo y matorral submontano fueron los más similares entre sí en diversidad de especies. Este trabajo representa una aportación significativa al conocimiento de la herpetofauna de la RBBM, y una base para estudios futuros sobre historia natural de los anfibios y reptiles de esta reserva.

          Translated abstract

          The Barranca de Metztitlán Biosphere Reserve (BMBR) is an extensive protected area (96 042.94 ha) in Hidalgo state of central Mexico. The reserve is well known for its globally significant endemic flora, but relatively little information is available regarding its herpetofauna. We examined reptile and amphibian community biodiversity occurring in each of 4 vegetation types characteristic of the reserve: pine-oak forest, tropical deciduous forest, sub-montane shrubland, and arid tropical scrubland. Field work was carried out between June 2006 and August 2007, a period spanning both wet and dry seasons. Overall, we found 7 species of amphibians and 31 species of reptiles in the BMBR, distributed in 14 families and 29 genera. Across all vegetation types, reptile species richness was greater in the rainy season, whereas amphibian species richness was greater in the dry season. Among vegetation types, tropical deciduous forest exhibited the highest diversity and richness of amphibians and reptiles. Pine-oak forest exhibited greatest species evenness and species diversity than the other vegetation types. Arid tropical scrubland and sub-montane shrubland were more similar to each other in species diversity. This study represents a significant addition to our knowledge of the herpetofauna from the BMBR, and an important base for future studies on the natural history of amphibians and reptiles in this reserve.

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          Vegetación de México

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            Latitudinal Gradients in Species Diversity: A Review of Concepts

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              Chytridiomycosis causes amphibian mortality associated with population declines in the rain forests of Australia and Central America.

              Epidermal changes caused by a chytridiomycete fungus (Chytridiomycota; Chytridiales) were found in sick and dead adult anurans collected from montane rain forests in Queensland (Australia) and Panama during mass mortality events associated with significant population declines. We also have found this new disease associated with morbidity and mortality in wild and captive anurans from additional locations in Australia and Central America. This is the first report of parasitism of a vertebrate by a member of the phylum Chytridiomycota. Experimental data support the conclusion that cutaneous chytridiomycosis is a fatal disease of anurans, and we hypothesize that it is the proximate cause of these recent amphibian declines.
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                Author and article information

                Journal
                rmbiodiv
                Revista mexicana de biodiversidad
                Rev. Mex. Biodiv.
                Instituto de Biología (México, DF, Mexico )
                1870-3453
                2007-8706
                August 2010
                : 81
                : 2
                : 473-485
                Affiliations
                [01] Pachuca Hidalgo orgnameUniversidad Autónoma del Estado de Hidalgo orgdiv1Centro de Investigaciones Biológicas orgdiv2Laboratorio Ecología de Poblaciones México
                Article
                S1870-34532010000200020 S1870-3453(10)08100200020
                49772e01-250b-4d17-9490-791e445878b4

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

                History
                : 20 November 2009
                : 24 January 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 79, Pages: 13
                Product

                SciELO Mexico

                Categories
                Ecología

                tipos de vegetación,riqueza de especies,diversidad,reptiles,anfibios,amphibians,vegetation types,diversity,species richness

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