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      Dunes in the North coast of Sergipe, Brazil: plant species and their ecological traits

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          Abstract

          Abstract Restinga vegetation, which is a vegetation type of coastal zones, are present in two geomorphological features in the North coast of Sergipe state - Brazil: litoraneous dunes (LD) and continental dunes (CD). The objective of the present paper is to record the species composition, Raunkiaer’s life forms, dispersal syndromes and soil fertility differences between both habitats. Furthermore, we compared the life forms spectra of the studied features to the spectra of the main Brazilian phytogeographic domains. We conducted a floristic survey from November 2013 to May 2014 in different Restinga areas in two dune habitats in coastal Sergipe state, Brazil, and compared differences in the two localities. Although the two areas were geographically close, there was low floristic similarity between the two habitats; CD showed higher richness than LD. The spectrum of life forms was more similar to that of Caatinga, probably due to environmental similarities. Life forms and dispersal syndromes proportions significantly differed between features, as well as the pH, organic matter, phosphorus, sodium and base saturation index. Zoochory prevailed in both features, whereas phanerophytes prevailed in CD and chamaephytes and phanerophytes in LD. Despite the influence of historical processes, micro-environmental differences between features, which were amplified by their different distances from the sea, were assumingly responsible for the recorded differences.

          Translated abstract

          Resumo No litoral norte de Sergipe, a vegetação de Restinga ocorre sobre duas feições geomorfológicas: dunas litorâneas (DL) e continentais (DC). O objetivo do presente trabalho é registrar as diferenças na composição de espécies, formas de vida de Raunkiaer, síndromes de dispersão e fertilidade do solo entre ambos os habitats. Adicionalmente, comparamos os espectros de formas de vida das feições com aqueles espectros dos principais domínios fitogeográficos brasileiros. Conduzimos um levantamento florístico durante o período de novembro/2013 a maio/2014 nas duas feições geomorfológicas analisadas. Embora as duas áreas sejam geograficamente próximas, houve baixa similaridade florística entre os dois habitats, tendo DC apresentado maior riqueza de espécies do que DL. O espectro das formas de vida foi mais similar ao da Caatinga, provavelmente em virtude de semelhanças ambientais. As proporções de formas de vida e síndromes de dispersão diferiram significativamente entre as feições, assim como os parâmetros pH, matéria orgânica, fósforo, sódio e índice de saturação por bases. A zoocooria predominou nas duas feições, enquanto que os fanerófitos predominaram em DC e caméfitos e fanerófitos, em DL. Apesar da influência de processos históricos, diferenças micro-ambientais entre as feições dunares estudadas, amplificadas pelas suas diferentes distâncias do mar, devem ser responsáveis pelas diferenças observadas.

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          Energy and Large-Scale Patterns of Animal- and Plant-Species Richness

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            Plant Zonation in an Alaskan Salt Marsh: I. Distribution, Abundance and Environmental Factors

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              Caminhamento-um método expedito para levantamentos florísticos qualitativos

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                Author and article information

                Journal
                rod
                Rodriguésia
                Rodriguésia
                Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (Rio de Janeiro, RJ, Brazil )
                0370-6583
                2175-7860
                2020
                : 71
                Affiliations
                [1] São Cristóvão Sergipe orgnameUniversidade Federal de Sergipe orgdiv1Centro de Ciências Biológicas e da Saúde orgdiv2Depto. Biologia Brazil
                Article
                S2175-78602020000100219 S2175-7860(20)07100000219
                10.1590/2175-7860202071021
                46d77809-6215-473e-83c3-4db6f6bcde8c

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

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                Figures: 0, Tables: 0, Equations: 0, References: 111, Pages: 0
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