Estrutura de tamanho e seleção de habitat em hymenaea oblongifolia huber. (caesalpiniaceae), numa floresta amazônica de terra firme.

Abstract

Hymenea oblongifolia is a tree species from the terra firme forest of the eastern Amazon. Its fruit is a berry, with 1 to 5 seeds dispersed probably by terrestrial rodents such as the agouti (Dasyprocta sp.). A small population of this species is being studied in the Mocambo Forest Reserve (Belém-PA), a residual area of little disturbed terra firme forest, located in the CPATU/EMBRAPA area. This study aims primarily to identify the patterns of distribution and abundance of this species at three regeneration sites: a) Area under the canopy of H. oblongifolia matrix trees, b) Understory areas outside the canopy of H. oblongifolia matrix trees, c) Area of natural clearings. The issues examined are intended to answer questions about the reproductive performance of the species and its persistence in the Mocambo area, a site pressured by hunting activity where its dispersers have probably been removed. The pattern observed suggests that in the long term, the population structure may be modified and this is probably related to the absence of its dispersers.