Efeito do plantio de dendê (Elaeis guineensis Jacquin 1763) sobre a diversidade funcional de mamíferos terrestres

Abstract

We studied the effect of palm tree planting on the functional diversity of terrestrial mammals in a region of the Amazon Forest in the northeast of the State of Pará, Brazil. We evaluated through measures of Functional Diversity (FD) the impacts that this planting can have on the functional groups of medium and large terrestrial mammals. In addition to the species richness we consider the abundance of species in the analyzes involving the functionality, through the Biological Trait Analysis (BTA) and the Functional Diversity Analysis based on the Rao quadratic entropy index (FDq). No effect of palm oil planting on the FD of the mammals was observed, considering only the species richness. However, in the analyzes in which the abundance of the species was considered (FDq and BTA), it was possible to observe the effects on the functional groups. The functional traits most affected by the effect were: general food habits, bunodon dentition, diurnal activity period, diet based on fruits, seeds, invertebrates and exudates, social behavior in small groups, arboreal locomotion, sub-forest forest strata and sub-canopy and the functional groups most affected by palm planting were primates and other arboreal species, compromising the functions of seed predation and dispersion, decreased nutrient cycling, reduced invertebrate control, decreased herbivory, and altered species life history vegetables.