Análise do impacto do resíduo de suínos na fauna de artrópodes de solo em plantações de eucalipto no município de Uberlândia, MG

Abstract

With the advancement of swine livestock, it is inevitable to increase the rejects excreted by these animals. The inadequate disposal of swine wastewater (SW) makes edaphic fauna one of the main victims of the environmental imbalance, since it has a vital function for soil maintenance. This work aimed to analyze the impacts of the use of SW as fertilizer in an area of eucalyptus under the meso and macro edaphic fauna. Fifty pitfall traps were used in five SW treatments of different concentrations in the dry and rainy seasons. It was identified 5377 individuals in February / 2018 and 8566 in August / 2018. The Formicidae family was the most frequent and corresponded to 58.38% and 75.98% of the animals collected in February / 2018 and August / 2018, respectively. The order Coleoptera presented a frequency of 16.66% in February / 2018 and 21.55% in August / 2018. The other groups did not vary in abundance, such as Orthoptera. The populations of Blattodea and Coleoptera decreased in higher concentrations of SW, while Araneae increased, demonstrating sensitivity of these groups, whereas the ants, considered as generalists, were able to adapt to the different concentrations of SW.