Riqueza e distribuição de macroartrópodes edáficos em clareiras de caatinga no Semiárido da Paraíba, Brasil.

Abstract

The development work with edaphic macroarthropods is of great importance in understanding the successive stages of natural and anthropogenic gaps. The aim of this work is to characterize evaluate the richness and abundance of macroartropodes in caatinga gaps at ground level in Sumé, semiarid region of Paraíba, northeastern Brazil. The study was carried in the Experimental Area of Sustainable Development Center SemiArid in the Federal University of Campina Grande, which 1.05 ha, which was divided into six transects, spaced 20 meters. Soil traps type Provid were used that stayed in the field for four days, distributed in the center of each gap. They selected 24 gaps, which occur in the evaluations of edaphic macroartropodes in January 2015. The area sampled during the study period showed an overall abundance of 17,858 individuals, which are divided into three classes and nine orders. The class of richest was the Insecta, composed of six orders, followed by Arachnida with two orders. Chilopoda was represented only by an order. In the distribution of orders by clearings were found absolute values for Hymenoptera who was present throughout the sampled clearings, followed by Araneae in 14 clearings, Coleoptera on 13 and Pseudoscorpionidea in six, Orthoptera in four, Phasmatodea in two. Scutigeromorpha, Diptera and Lepidoptera were divided between each exclusively, with only one individual in each gaps. The gaps of the area studied, showed up with a high abundance of edaphic macroartropodes the study period (dry season) mainly caused by Hymenoptera and distribution of gaps for orders of classification, quite irregular.