Ocorrência de coleobrocas em área em processo de restauração florestal em fragmento de Mata Atlântica nordestina

Abstract

Insects have a great capacity to adapt to environmental changes, being the group of animals with the greatest abundance and richness of species on the globe. The Atlantic Forest is an important biome with a rich diversity of phytophysiognomies, but today it is in an accelerated process of degradation, requiring forest restoration actions, as well as knowledge and monitoring of insects occurring in the biome, which can be used as bioindicators of advance succession. The present work had as objective to know the diversity of beetroot insects in a fragment of Dense Ombrophilous Forest under restoration, in the Northeastern Atlantic Forest. The study was carried out in a fragment under the domain of the Recife Botanical Garden, in an area under restoration and in an area of preserved native forest adjacent to the first. The survey of insects was carried out in September and December 2019, using the Carvalho 47-type ethanol aerial intercept trap, installed at a height of 1.5 meters from the ground. Insects were collected using traps in transects that crossed the two areas, comprising the sense of restored area - border - preserved native forest, with 8 sampling points in each transect. In the two collections, 649 arthropods were captured, belonging to 6 orders, with greater abundance of insects of the order Coleoptera, mainly coleoborcas from the families Cerambycidae, Bostrichidae and Curculionidae (Scolytinae and Platypodinae). The family Curculionidae had the highest number of individuals collected, followed by the family Cerambycidae. The conserved native forest area had a greater amount of beetle borers when compared to the restoration area, due to the fragmentation of the environment. It is necessary to continue collecting in the other months of the year to understand the population dynamics of these groups of insects and understand the influence of the environment on their distribution, as well as the continuity of the forest restoration process in the disturbed environment for the local balance of these populations.