estrutura de espécies arbóreas sob efeito de borda em um fragmento de floresta estacional semidecidual em pernambuco edge effect on the structure of tree species in a seasonal forest fragment in pernambuco

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ID: 162909
2010
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Abstract
Os fragmentos florestais são considerados os únicos redutos detentores de biodiversidade do planeta. Conhecer os processos que decorrem após a fragmentação, a exemplo da estrutura arbórea ocorrente na borda, é de fundamental importância para se proporem medidas conservacionistas. Os objetivos deste trabalho, desenvolvido em uma área de 83,8 ha, localizada no Município de Nazaré da Mata, PE, foram efetuar o levantamento fitossociológico de espécies arbóreas adultas sob efeito de borda e verificar a similaridade florística entre as parcelas. A área amostral foi de 10.000 m², equivalentes à implantação de 10 transectos de 10 x 100 m perpendiculares à borda, distribuídos de forma sistemática. Foram amostrados, etiquetados e identificados todos os indivíduos arbóreos com CAP e" 15 cm. Posteriormente, realizaram-se os cálculos dos parâmetros fitossociológicos e da similaridade florística. Neste estudo, amostraram-se 1.238 indivíduos, pertencentes a 72 táxons, distribuídos em 26 famílias botânicas. As espécies Campomanesia xanthocarpa, Zanthoxylum rhoifolium e Anadenanthera colubrina apresentaram o maior valor de importância, pois, teoricamente, conseguiram explorar melhor o recurso proporcionado pelo hábitat.
Forest fragments are considered the last refuges for biodiversity in the planet. Knowing the processes that occur after fragmentation, such as the tree structure that occurs in the edge, is fundamental to propose conservationist measures. The objective of this work was to carry out a phytosociological survey of adult tree species under edge effect and verify the floristic similarity among the plots. The work was developed in an area of 83,8 ha located in the municipality of Nazaré da Mata - PE. The sample area comprised 10.000 m², equivalent to the implantation of 10 contiguous transects of 10 x 100 m perpendicular to the edge. All tree individuals with CAP e" 15 cm were sampled, labeled and identified. Afterward, phytosociological parameters and the floristic similarity were calculated. In this study, 1238 individuals, belonging to 72 táxons and distributed into 26 botanical families were sampled. The species Campomanesia xanthocarpa, Zanthoxylum rhoifolium, and Anadenanthera colubrina, showed the largest importance value, as theoretically, they managed to better exploit habitat resources.
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holanda2010revistaestrutura Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Alan Caue de Holanda;Ana Lícia Patriota Feliciano;Luiz Carlos Marangon;Moisés Silva dos Santos;Cybelle Laís Souto Maior Sales de Melo;Mayara Maria de Lima Pessoa
Journal journal of veterinary medical research
Year 2010
DOI
10.1590/S0100-67622010000100012
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622010000100012
Keywords
fragmentation phytosociology edgeforestry

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