Collembola como bioindicadores da qualidade do solo de áreas recuperadas da floresta nacional de Saracá-Taquera, Porto Trombetas, PA

Abstract

This paper presents the results of the analysis of the ecological structure on collembolo treated with parameters of richness and diversity, and taxonomic aspect, in reforestation areas and two primary forests. The main focus of this study was to verify the recovery of degraded areas and recovered areas over time, comparing the dynamics which species of Collembola can serve as bioindicators of major changes occurring over the years of planting. The comparison in these areas showed that diversity was higher in forests. However, despite the disturbance, the reforestation show high capacity for colonization where diversity was not affected. The collembolos are extremely sensitive to changes in the natural environment. However, the results from this study suggest that the model for restoration of impacted areas employed by the North River Mining, has led to a positive process of rehabilitation of these areas, revealed the high diversity of species recorded in plots reforested with native threes. Moreover, species of Collembolas can be used as bioindicators of soil quality in these areas.