Diversidade e distribuição de insetos herbívoros (Hemiptera e Coleoptera) associados às plantas dos gêneros Inga, Micropholis e Protium no sub-bosque de florestas ombrófilas densas de terra-firme e campinarana na Amazônia Central

Abstract

The aim of this study was to compare the richness and abundance and specificity of herbívorous insects (Hemiptera and Coleoptera) relationing to genus Protium (Burseraceae), Inga (Fabaceae) and Micropholis (Sapotaceae) in terra-firme and white sand forests of Central Amazonia. The insects was sampled in 18 plots, evaluating 622 plants with 1.5 to 3 meters of height using manual sampled and Amazonas trap. To evaluate hemiptera and beetle species composition, we used multivariate analysis by permutation, and to evaluate Hemiptera and Coleoptera richness and abundance between plant genres and the environments studied, we used mixed generalized linear models (GLMMs). We used the "Indicator-Value" (IndVal) method of Dufrêne and Legendre (1997) to evaluate specificity of Hemiptera and Coleoptera species with a given genus of plant or a specific habitat. A total of 115 morphospecies of herbivorous insects belonging to orders Hemiptera and Coleoptera were sampled from plants of genus Protium, Inga and Micropholis. The type of environment influences the richness, abundance and composition of herbivorous insects through manual collection. The abundance of rare insects common in tropical forests must have influenced, in the relation of herbivorous insects between the genera of the studied plant and the environment, by the method of Amazonas-trap. The distribution of herbivorous insects is higher in terra firme forests compared to white sand forest, probably due to contrasting characteristics between forest types and availability of herbivorous insects, but our results suggest that most are independent of the type of environment.