Composição florística e estrutura de uma floresta de restinga na planície costeira do Rio Doce, Linhares, ES
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2015-03-24
Autores
Jesus, Lília Martins de
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Universidade Federal do Espírito Santo
Resumo
The restinga flora in different parts of the Espírito Santo coast has been well documented by various authors over the years. However, there are gaps on the equivalence between types of physiognomically similar vegetation such as forests of salt marshes, and its floristic relationships at different levels of coverage in the Atlantic Forest that would enable one phytogeographic analysis in search of more robust standards. Therefore, this study aimed to i) describe the floristic composition and structure of a restinga forest located next to the mouth of the Rio Doce, ii) check for Atlantic Forest of the Holy Spirit , Bahia and Minas Gerais and iii) identify the species preferences for each location IV) identify which are the geo-climatic factors that may be identified as preferences for establishing the species for the studied area. Individuals Were selected surveys of different faces the Atlantic Forest Domain Espírito Santo, Bahia and Minas Gerais which was a database used to reveal the floristic patterns of the areas compared and an array of environmental data to correlate the ordination of species due to conditions environment, in this case, the climate. They sampled 856 live trees, distributed in 189 species, 89 genus, 41 families and 26 (3%) dead trees, for a total of 0.5 hectares of sampling area. Myrtaceae (29) had the highest species richness, followed by Fabaceae (15) and Sapotaceae (14). The Shannon index (H) was 4.35 falls within the high standards of diversity found in Espírito Santo forests. The total density was 3,528 ind. / Ha and basal area of 36.58 m² / ha. Simaba subcymosa A.St.Hil. & Tul was the species with the highest VI. In this forest fragment of 286.52 ha were registered 15 taxa with some degree of threat, two species of rare and new species. The greatest similarity of this study was to forests of sandbanks and muçunungas the north of the Holy Spirit. The canonical correspondence analysis indicated the correlation of distribution of species due mainly by the altitude and the TWINSPAN indicated preferences of each species analyzed area. The floristic analysis showed the contribution of the trays in the floristic composition, hence the sandbank forest structure Train. The results of this study contributed to reaffirm the central status of diversity of the mouth of the Rio Doce region, in Linhares.
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Restinga forest , Floristic composition , Structure , Diversity , Species ordination , Similarity , Composição florística , Estrutura , Ordenação das espécies , Similaridade
Citação
JESUS, Lília Martins de. Composição florística e estrutura de uma floresta de restinga na planície costeira do Rio Doce, Linhares, Brasil. 2015. 86 f. Dissertação (Mestrado em Biodiversidade Tropical) - Universidade Federal do Espírito Santo, Centro Universitário Norte do Espírito Santo, São Mateus, 2015.