Diversidade e composição das comunidades de formigas em cana-de-açúcar, soja e fragmentos florestais no Cerrado

Abstract

Species diversity and composition of ants were studied in three environments, two agroecosystems and forest fragments. By the hypotheses generated was measured with the fragments and plantations aiming to verify who had more or less wealth, and by structuring the ant community to assess whether the presence of negative affect crops and / or positively ant communities occurring or causing not to simplification. Samples were collected using the mini-Winkler methodology with a total of 500 portions of litter and 193 species in 46 genera and 12 subfamilies. Through our results, we found that species richness in the forest fragments was higher in comparison with the agroecosystems soy and sugar cane, in addition, the similarity between different localities were greater in environments of forest fragments than it was in the agroecosystems, which showed an obvious depletion. We believe that factors such as seasonal disturbances, species dominance and isolation of areas of the fragments are mainly responsible for the results found in this study, triggering a process of irreversible loss of biodiversity. Therefore, it is necessary to seek solutions that balance the agricultural process and maintenance of suitable forest habitat in order to maintain the structure and permanence of population due to hold their ecological role in maintaining biological balance in the environment.