Dinâmica populacional de babaçu (Attalea speciosa Mart. ex. Spreng.) em pastagens na Amazônia Oriental.

Abstract

Changes in the landscape have modified the structure and dynamics of different populations. In Amazônia, the main cause of these changes is the opening of arcas for agriculture and, depending on the type of management, native species can be established in the pastures, causing a decrease in their productivity. In this context, the present work aims to evaluate the population dynamics of Attalea speciosa Mart ex. Spreng (Babaçu) in the eastern Amazon. For this purpose, forests and pastures of different ages and with different types of management were evaluated. The results were different firom the expected and indicated a very similar dynamic between the forests and the pastures. Additionally, pasture management, such as the use of fire and weeding, is not important to differentiate the behavior of the species, intrinsic characteristics ofthe species favor its permanence in the pastures, which is adapted in anthropic arcas and important species in the process of regeneration of pastures, having similar mortality rates in the different coverages and management, since the recruitment is influenced by the decrease of the coverage, especially in the stages. The population bottleneck is in the early stages with less natural regeneration.