Impacto do fogo sobre a macrofauna edáfica em área de cerrado no município de São João do Sóter – MA

Impact of fire on edáfic macrofauna in a cerrado area in the municipality of São João do Sóter – MA

Abstract

The study of soil macrofauna is used to monitor environmental disturbances and degraded areas. Fire is one of the agents with the greatest potential to drastically modify the environment and landscape, and can cause environmental and economic damage. The aim of the work is to analyze the effect of fire on the soil macrofauna community in a cerrado area. The material was collected in the rainy season (March 2021) in Povoado Serra do Cajuí, municipality of São João do Sóter – Caxias MA. To collect the specimens, pitfall traps were used. 15 points were delimited with a distance of 450m from each other. These points were demarcated into burned area (Area 1), little burned area (Area 2) and unburned area (Area 3). A total of 3,876 individuals were found distributed across 11 orders, with 8 orders found in Area 1, 10 orders in Area 2 and 9 orders in Area 3. Area 2 presented the greatest abundance, and among the three Areas, the order Hymenoptera is the most abundant, dominant and frequent. Area 1 presented the highest Diversity and Uniformity index and Area 2 presented the highest Wealth index. The richness estimator suggests greater sampling effort.