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

2018; UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; Volume: 25; Issue: 2 Linguagem: Inglês

10.1590/2179-8087.096514

2179-8087

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

Botany, Ecology, and Taxonomy Studies

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.