Influence of the use of fire on arthropod predators in agroecosystems of family farming in southeastern para

Abstract

The burning is considered by farmers as an effective method of land preparation before planting
of crops and for the renewal of pastures. Thus, the aim of this study was to determine the
influence of the use of fire in predatory arthropod populations in agroecosystems in southeastern
Pará. Three agroecosystems were selected on the farm, in each agro-ecosystem sampling
of arthropods was carried from the installation of four traps installed four traps trapdoor
type type, depending on regional climatic seasonality. We collected 392 individuals, with the
rainy season the most abundant. The forest area showed similar values in both periods. There
was high recolonization in the growing area by the proximity of preserved area, mainly by staphylinid.
The use of fire in the crop area has increased the abundance of predatory arthropods
when compared to ancient forest that has not undergone intervention, so that the dynamics of
burned promotes migration and recolonization between agroecosystems.