Estrutura e sucessão ecológica de uma comunidade florestal urbana no sul do Espírito Santo

Abstract Forest communities are dynamic environments in which succession processes occur naturally, may lead to the maturity of the forest. The objective of this study was to evaluate the structure of the woody component of a fragment of semideciduous forest and characterize their successional stage. The study was conducted in the municipality of Alegre, Espirito Santo, in ARIE Laerth Paiva Gama . The sampling of all individuals with DBH ≥ 5 cm was performed by points quadrants. In addition to the ecological parameters it was obtained diameter structure to the community. The species were classified according to environmental group in pioneers, early secondary and late secondary, and the degree of threat of extinction. Were recorded the 112 species, 81 genera and 34 families, of which have excelled in importance value were Pseudopiptadenia contorta (15.33), Apuleia leiocarpa (5.08), Acosmium lentiscifolium (4.42) and Parapiptadenia pterosperma (4.30). The Shannon index was 4.17 and the evenness of 0.87 and are considered high values for semideciduous forests. As to the evaluation of ecological groups, late and early secondary stood out in wealth, however initials were more abundant in the community. Thus, the remaining forest studied can be characterized as belonging to the initial-intermediate stage succession.