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      Do edaphic aspects alter vegetation structures in the Brazilian restinga?

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          Abstract

          The vegetation of the Brazilian restinga (coastal woodland) presents a variety of species and different characteristics, encompassing fields, fruit groves and forests on quartzarenic neosols. We hypothesised that the structure of the restinga landscape along the coast of the state of Piauí is influenced by edaphic factors and presents a pattern similar to that of other northeastern restingas. We evaluated three restingas in Piauí, using the quarter method to determine their structure. Composite soil samples were collected to determine their chemical and physical properties. Edaphic variables were correlated with plant species by canonical correspondence analysis (CCA). Phytosociological data for all three areas indicated regenerating vegetation comprising several small individuals, 82.5% of which showed a diameter at ground level < 13 cm. We also observed considerable tillering. In two of the areas, there was a predominance of Fabaceae species, such as Caesalpinia pyramidalis and Copaifera martii. Although the structural characteristics of the restingas studied were similar to those of other northeastern restingas, the former showed lower Shannon diversity indices (2.18-2.44). The CCA indicated that species distribution was influenced by edaphic factors such as pH, aluminium content and amount of organic matter. The restingas studied were similar to others along the Brazilian coast.

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          An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II

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            Biostatistical Analysis

            Presents a broad collection of data analysis techniques suitable for biological investigations, either as an introductory textbook assuming no prior knowledge of statistics, or as a reference on concepts and procedures of statistical analysis for professional use in the biological disciplines. Each
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              Changes in Plant Community Diversity and Floristic Composition on Environmental and Geographical Gradients

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                Author and article information

                Journal
                abb
                Acta Botanica Brasilica
                Acta Bot. Bras.
                Sociedade Botânica do Brasil (Alta Floresta, MT, Brazil )
                0102-3306
                1677-941X
                September 2013
                : 27
                : 3
                : 613-623
                Affiliations
                [01] Teresina PI orgnameUniversidade Estadual do Piauí orgdiv1Centro de Ciências da Natureza Brazil
                [02] São Luís MA orgnameUniversidade Federal do Maranhão orgdiv1Centro de Ciências Biológicas e da Saúde orgdiv2Departamento de Biologia Brazil
                [03] Recife PE orgnameUniversidade Federal Rural de Pernambuco Brazil
                Article
                S0102-33062013000300019 S0102-3306(13)02700300019
                10.1590/S0102-33062013000300019
                3604a601-d024-4ac1-83fb-ebb720b636c4

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

                History
                : 23 May 2011
                : 24 July 2013
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 72, Pages: 11
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                SciELO Brazil

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                Articles

                coastal vegetation,canonical correspondence analysis,edaphic interactions

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