Diversity and regeneration guilds of tree species in an edge of a natural forest in contact with a pinus plantation Diversidade e guildas de regeneração de espécies arbóreas na borda de uma floresta nativa em contato com plantio de pínus

• Main Author: Rosa A.D.*
• Publication Date: 2015
• Other Authors: Guidini A.L.*, Spiazzi F.R.*, Silva, Ana Carolina Da, Negrini M.*, Ansolin R.D.*, Higuchi, Pedro, Bento M.A.*, Goncalves D.A.*, de Souza Ferreira T.*
• Format: Article
• Language: eng
• Source: Repositório Institucional da Udesc
• dARK ID: ark:/33523/0013000003t3j
• Download full: https://repositorio.udesc.br/handle/UDESC/8229

The objective of the present study was to verify the influence of edge-effect on diversity and regeneration guilds participation in a forest fragment in contact with a Pinus plantation. For this, the adult (dbh - diameter at breast height≥5 cm) and regenerative (height higher than 15 and dbh<5 cm) components were sampled in five, 20×100 m, transects perpendiculars to the edge of a fragment. Each transect was subdivided in five, 20×20 m, subplots, defining the following sectors representing the edge-interior gradient: 0-20 m, 20-40 m, 40-60 m, 60-80 m and 80-100 m. The species were classified according to the following regeneration guilds: pioneer, light demanding climax and shade tolerant climax. The diversity (Shannon Index) and guilds abundance in each sector were determined. The data were analyzed by Hutcheson t test and proportion test. While no variation was observed for the adult component, the highest of diversity was observed in the edge (0-20 m) for the regenerative component. Variations along the edge gradient of the relative participation of guilds were observed only for adults, with a concentration of Pioneer within the first 40 m.