Dinâmica populacional de Lecythis idatimon Aubiet após exploração florestal seletiva em uma floresta tropical de terra firme.

Abstract

This study contributes to the knowledge concerning tropical forest dynamic evaluating Lecylhis idaíimon Aublet behavior in a selectively exploited terra-firme forest. The study was carried out in a 200 ha of selectively exploited forest in an experimental area that belongs to Embrapa Amazônia Oriental, Moju city- Para. It was selected nine gaps originated from this exploitation. Lecylhis idaíimon Aublet is included in the ecofisiologic group of tolerant species and shows growth acceleration in open areas produced by forest exploitation. There was low mortality after thirty-six months from the selective forest exploitation showing an increasing population density, with positive natural regeneration rate and high surviving rate. In the end of study, was observed an increase of9,10% in the density of individuais above 5cm dbh The diametric distribution also shows that the canopy open was beneficiai for diametric growth of species, increase the number of individuais in five of eight diameter classes analyzed and still maintaining a decrescent diametric distribution.