Colêmbolos (Hexapoda, Collembola) da Amazônia Oriental: taxonomia e ecologia.

Abstract

In this work, the results of the analysis of the structure of the population of Collembola in a primary forest called Estação Científica Ferreira Penna and a primary forest with anthropic interference called Reserva do Mocambo in the Eastern Amazon are presented, treated through parameters of species diversity, population density, frequency, similarity and general taxonomic aspect, with the aim of verifying whether populations that live in physiognomically similar areas may differ in their ecological and taxonomic structure, due to abiotic factors and human interference acting in different degrees and scales. The specific comparison in the two areas of study showed that the diversity was greater in the ECFPn. The taxonomic analysis resulted in a total of 83 taxa distributed in 29 genera, 16 species and 67 morphospecies. Hemiedaphic springtails showed greater species diversity compared to epigeic springtails. The dominant epigeic species in the ECFPn were Lepidosira Carvalhoi followed by Mastigoceras camponoti and Campylothorax schaeffeff. In Mocambo, Lepidosira Carvalhoi was also the most abundant, followed by Lepidosira sp 10 and Lepidosira sp 7. For the hemiedaphic species, Isotomiella sp, Folsomina onychiurina and Paronella sp are the most abundant in the ECfPn, and for Mocambo, the order is given by Proisotoma oliveirae, Brachysfomelfa sp and lsofomiila sp. Epigeic springtails are extremely sensitive to changes in the natural environment. The anthropic disturbances suffered by the Mocambo Reserve were not enough to affect the diversity of Collembola in this area.