Flora and Woody Vegetation Structure in an Insular Area of Restinga in Brazil

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外文摘要：The coast of Piaui State, Brazil, extends for 66 km and both continental and insular areas are completely contained within the Parnaiba Delta Environmental Protection Area. The coastline there is dominated by quartz sands of the Quaternary period and soils derived from the Barreiras Formation (Tertiary period). The municipality of Ilha Grande (02°50'84"S / 41°47'39"W), located just off the coast, is covered by mangrove vegetation and "restinga" (sandy substrate, near shore vegetation). The present work sought to demonstrate the floristic richness of the restinga vegetation on Ilha Grande and compare its woody vegetation structure to other such areas in northeastern Brazil through floristic and phytosociological studies, elaborating vegetation profiles and performing chemical and physical analyses of the soils. Sixty-seven species were encountered (belonging to 31 botanical families) growing on sandy soils with high aluminum concentrations. Clumped shrubby vegetation predominated, that demonstrated slightly more than 50% similarity with other coastal continental restinga vegetation areas of Piaui State - although its composition was more similar to restinga sites in the northeastern region of Brazil than to geographically adjacent environments.

外文关键词：

Coastal VegetationDiversityNortheasternPhytosociologyPlant DiversityRichness

作者：

Francisco Soares Santos-Filho、Eduardo Bezerra de Almeida Jr.、Caio Jefiter dos Reis Santos Soares、Carmen Silvia Zickel

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作者单位：

Centro de Ciencias da Natureza. Universidade Estadual do Piaui, Teresina (PI), Brasil

Departamento de Biologia. Universidade Federal do Maranhao, Sao Luis (MA), Brasil

Instituto de Biologia. Universidade Estadual de Campinas, Campinas (SP), Brasil

Departamento de Biologia. Universidade Federal Rural de Pernambuco, Recife (PE), Brasil

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出版年：

2016

International journal of ecology & enviromental sciences

ISSN：0377-015X

年,卷(期)：2016.41(3/4)