The monitoring of sand dune insects using pitfall trap in Goraebul beach, Yeongdeok-gun, South Korea

Abstract

This study conducted surveys using the pitfall trap method to understand the characteristics and changes in the occurrence and distribution of insects in line with the changes of dune vegetation and seasons in Goraebul beach, Yeongdeok-gun, Gyeongsangbuk-do. The results show that the two different species of Gonocephalum pubens (83.15%) and Labidura japonica (6.98%) that belong to the families Tenebrionidae and Labiduridae, respectively, among eight species have relatively higher population density and that G. pubens dominates in terms of its density and reveals a significant difference from that of the other species. The study found differences in the occurrence of population at the time of surveys in four different spatial segments, including the beach, which is not covered by vegetation, the area covered by vegetation, the shrubbery, and the Pinus thunbergii community. Among the species that appear monthly, some appear throughout the year while others appear at specific periods of time.

Keywords

• coastal sand dune
• sand dune vegetation
• insects
• monitoring