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      Diversity and habitat use by snakes and lizards in coastal environments of southernmost Brazil Translated title: Diversidade e uso do ambiente por serpentes e lagartos em ambientes costeiros do extremo sul brasileiro

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          Abstract

          This study examined species composition differences among snake and lizard assemblages from coastal dunes and restinga habitats in southernmost Brazil. Animals were collected between April 2009 and March 2010 using pitfall traps, artificial shelters, and time-constrained searches in grasslands areas susceptible to flooding. Species richness was higher in the restinga, but lower than the observed in other Brazilian biomes, possibly associated with more unstable microclimate conditions and low habitat complexity (vertical and horizontal distribution of the vegetation) in this habitat. This hypothesis is supported by the fact that the most abundant species of both snakes and lizards have fossorial habits. The assemblage of snakes is apparently mainly determined by abiotic characteristics of the habitat, while the assemblage of lizards, by vegetation cover.

          Translated abstract

          O estudo teve como objetivo avaliar a composição de espécies de serpentes e lagartos em ambientes costeiros no extremo sul brasileiro. Foram feitas amostragens sistematizadas em hábitats de dunas e restingas entre abril de 2009 e março de 2010 por meio de armadilhas de interceptação e queda, abrigos artificiais e procuras visuais. O ambiente de restinga revelou uma maior riqueza de espécies do que as dunas. As taxocenoses revelaram uma menor riqueza do que a observada em outros biomas brasileiros, o que parece estar associado às condições microclimáticas menos estáveis e à baixa complexidade estrutural desses habitats (distribuição vertical e horizontal da vegetação). Essa hipótese parece ser reforçada pelo fato de tanto para serpentes quanto para lagartos as espécies mais abundantes apresentam hábitos fossoriais. Aparentemente a taxocenose de serpentes é determinada predominantemente pelas características abióticas (microclima) do habitat enquanto que a de lagartos pelo padrão de cobertura vegetal.

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          Biostatistical Analysis

          Designed for one/two-semester, junior/graduate-level courses in Biostatistics, Biometry, Quantitative Biology, or Statistics, the latest edition of this best-selling biostatistics text is both comprehensive and easy to read. It provides a broad and practical overview of the statistical analysis methods used by researchers to collect, summarize, analyze, and draw conclusions from biological research data. The Fourth Edition can serve as either an introduction to the discipline for beginning students or a comprehensive procedural reference for today's practitioners.
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            Nova classificação climática do Estado do Rio Grande do Sul

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              Squamate richness in the Brazilian Cerrado and its environmental-climatic associations

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                Author and article information

                Journal
                bn
                Biota Neotropica
                Biota Neotrop.
                Instituto Virtual da Biodiversidade | BIOTA - FAPESP (Campinas, , Brazil )
                1676-0611
                September 2012
                : 12
                : 3
                : 78-87
                Affiliations
                [01] Rio Grande RS orgnameUniversidade Federal do Rio Grande orgdiv1Instituto de Ciências Biológicas orgdiv2Laboratório de Ecologia de Vertebrados Terrestres Brasil
                [02] Rio Grande RS orgnameUniversidade Federal do Rio Grande orgdiv1Instituto de Oceanografia orgdiv2Laboratório de Ictiologia Brasil
                [03] São Leopoldo RS orgnameUniversidade do Vale do Rio dos Sinos Brasil
                Article
                S1676-06032012000300008 S1676-0603(12)01200308
                10.1590/S1676-06032012000300008
                52c7f7fc-6a57-4005-b3a4-acddc61e48c1

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

                History
                : 20 September 2011
                : 10 August 2012
                : 24 June 2012
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 53, Pages: 10
                Product

                SciELO Brazil

                Categories
                Articles

                restinga,diversidade,diversity,serpentes,lagartos,dunas,snakes,sand dunes,lizards

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