Estrutura do Componente Lenhoso de uma Restinga no Litoral Sul de Alagoas, Nordeste, Brasil (Structure of the Woody Component of a Restinga on the South Coast of Alagoas, Northeastern Brazil)

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ID: 73425
2010
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Abstract
O presente estudo teve como objetivo analisar os parâmetros estruturais da vegetação arbustivo-arbórea da restinga de Marechal Deodoro. O estudo foi realizado em uma área do litoral sul do Estado de Alagoas, no município de Marechal Deodoro (09º42’36’’S e 35º53’42’’W). Para amostragem foram instalados cinco transectos de 100m, perfazendo 50 pontos, cujo critério de inclusão de espécies foi de PAS  10cm e os parâmetros fitossociológicos foram analisados para as espécies. Foram amostradas 49 espécies, distribuídas em 39 gêneros e 29 famílias, perfazendo 200 indivíduos. As famílias com maior riqueza específica foram Myrtaceae (sete espécies), Fabaceae (4), Anacardiaceae (3), Sapotaceae (3), Chrysobalanaceae (2), Clusiaceae (2), Malpighiaceae (2), Rutaceae (2) e Sapindaceae (2). As espécies de maior IVI foram Manilkara salzmannii, Tapirira guianensis, Marlierea regeliana, Protium heptaphyllum e Andira nitida. O índice de Shannon encontrado foi de 3,330 nat.ind-1, valor próximo ao dos estudos realizados no litoral de Pernambuco. As espécies encontradas são comuns às restingas do Nordeste apresentando considerável diversidade florística, apesar da pressão antrópica. Palavras-chave: Fitossociologia, Nordeste, vegetação de restinga, riqueza florística.   Structure of the Woody Component of a Restinga on the South Coast of Alagoas, Northeastern Brazil   ABSTRACT This study aimed to analyze the structural parameters of shrub-arboreal Marechal Deodoro restinga. The study was conducted in a southern coastal in Alagoas State, in the municipality of Marechal Deodoro (09º42'36''S and 35º53'42''W). For sampling were installed five 100m transects, totaling 50 points, the inclusion criterion of species was PSL ≥ 10cm and the phytosociological parameters were analyzed for the species. We sampled 49 species belonging to 39 genera and 29 families, totaling 200 individuals. The families with greater specific richness were Myrtaceae (seven species), Fabaceae (4), Anacardiaceae (3), Sapotaceae (3) Chrysobalanaceae (2), Clusiaceae (2) Malpighiaceae (2), Rutaceae (2) and Sapindaceae (2). Species with higher IVI were Manilkara salzmannii, Tapirira guianensis Marlierea regeliana, Protium heptaphyllum and Andira nitida. The Shannon index was found to be 3.330 nats.ind-1, value close to those studies conducted on the coast of Pernambuco. The species found are common to salt marshes of the Northeast showing considerable floristic diversity, despite the anthropogenic pressure. Keywords: Phytosociology, Northeast, restinga vegetation, floristic richness.
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Authors Medeiros, Daniel Portela Wanderley de;Santos-Filho, Francisco Soares;Jr., Eduardo Bezerra de Almeida;Pimentel, Rejane Magalhães de Mendonça;Zickel, Carmen Sílvia;
Journal revista brasileira de geografia física
Year 2010
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