Diversity in an urban green area: qualitative evaluation of urban forest of the Federal University of Acre campus, Brasil.
Maranho Á. S., Paula S. R. P. de
Author Affiliation: Programa de Pós-Graduação em Ecologia e Manejo de Recursos Naturais, Universidade Federal do Acre, Rio Branco, AC, Brazil.
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Abstract : The urban forestry acts on the comfort in the environment and providing better living conditions of living on cities. This study aimed to perform a diagnosis of trees and palm trees on the Federal University of Acre (UFAC) campus, as well as its relationship with the environment to which they belong. A census of trees and palms was conducted, and evaluated their physical structures, such as the quality of the crown and the stem, phenology, mistletoes infestation and conflicts with wiring, roots and street lighting. The campus has 1,639 individuals, 128 species (110 trees and 18 palm trees), with higher frequency of Inga marginata, Euterpe oleracea, Mangifera indica and pavonina Adenanthera lactescens Lophantera. Among the species, 77.3% are native to Brazil and most natural occurrence in the Amazon. The Shannon-Wiener index calculated for the UFAC campus was 3.95, indicating high diversity of species, representing one of the highest diversity when compared with other campi of Brazil. The presence of mistletoes in 17% of individuals of planting the campus has been verified. The trees had higher infestation by mistletoes were individuals of Samanea tubulosa. The trees and palm trees are in good condition with few conflicts with sidewalks or street lighting and most are complying with their environmental functions, such as providing shade for pedestrians.