Heterogeneity of a Tree Species Community in an Alluvial Area of Santa Catarina, Brazil

Ano: 2018 | Volume: 25 | Número: 2

Autores: Didiane Ana Gonçalves; Ana Carolina da Silva; Pedro Higuchi; Aline Gross; Luiz Carlos Rodrigues Junior; Felipe Fornara Walter; Rodineli Loebens; Francieli de Fátima Missio; Francieli Pscheidt; Tiago de Souza Ferreira; Carla Carolina Chini Rech; Angélica Dalla Rosa; Fernando Buzzi Junior; Marco Antonio Bento; Aline Pereira Cruz

Palavras-chave: floodplain forest; phytosociology; Mixed Ombrophilous Forest

Resumo Inglês:

The aim of the present study was to characterize the floristic-structural heterogeneity of the tree species in an alluvial forest remnant considering three sectors: forest-river edge, forest interior and forest/non-forest matrix edge. Forty-eight plots of 200 m 2 were allocated and all tree individuals with a diameter at breast height (dbh) equal to or greater than 5 cm were measured and identified. Data was analyzed by Shannon’s diversity index, Pielou evenness and phytosociological descriptors. Plots were ordered through NMDS. Sixty-six species were sampled and Myrtaceae was found to be the richest family. Diversity and evenness reached 2.96 and 0.71, respectively. Sebastiania commersoniana (Baill.) L.B.Sm. & Downs presented the highest importance value (21.22%). The NMDS showed that tree components are spatially partitioned according to sectors, therefore indicating floristic-structural heterogeneity.