Levantamento de ordens de insetos associada a duas composições florestais nas diferentes estações do ano

Abstract

The appearance of different orders and species of insects varies according to the environment and season of the year, making it possible to carry out studies that seek to understand the behavior of the Insecta class. To know the diversity of insect order associated with two forest compositions at the Universidade Tecnológica Federal do Paraná – Campus Dois Vizinhos in different seasons, with a pet bottle trap and pineapple juice attractant. The study and collection were carried out at the UTFPR campus, at the Teaching, Research and Extension Unit on Ecological Trail and Forest Stands. The traps were made with PET bottles, and the attraction was pineapple juice. The traps were installed in the field from April 2019 to March 2020, where in each season of the year, two collections were made with replacements of the attractive juice, the samples stayed in the field for a week and then the collections were made and soon after they were taken to the biological control laboratory (LABCON). In the laboratory, the insects were identified at theorder level, separated and quantified in an electronic spreadsheet. For data analysis, ecological diversity and dominance indices were used to quantify the diversity and dominance of insects present in the two forest compositions. It was observed that theseasons influenced the occurrence of insects of different orders, regardless of the forest composition. The orders with the highest occurrence were Diptera and Coleoptera. The first occurred more frequently in the autumn and spring seasons, and the second, in the winter and summer seasons. When comparing the two forest compositions, both for FN and for FP, the same richness of orders was observed, and, consequently, the order Diptera was the one with the highest abundance in relation to the others.