Alta diversidade de formigas em cerrado com perturbação intermediária de fogo (High ant diversity in cerrado with intermediate fire disturbance)

We sampled epigaeic ants with pitfall traps in five areas with different fire regime histories. The richness of ants did not vary between treatments, but the density of species (number of species per pitfalltrap) was significantly different between treatmens when rare species (singletons) were excluded. We found a humpback fashion with the relation between ant richness along the disturbance gradient, with few species density in control and high intensity burning plots, while in low-intensity fire plots had greater ant diversity.