울진 월송리사구지대(평해 사구)의 곤충상과 보전평가

The work of insect fauna on Weolsong-ri (Pyeonghae) coastal dune was carried out as a part of the project of the Ministry of Environment in 2006 and an additional survey in 2008. Accordingly, based on the data of fauna and distribution of sand obligate species, we tried to examine and analyze how the change of landscape was influenced on natural dynamism of dune systems, and hence their insect diversity. As a result of field survey, we checked up 144 species in 51 families of 12 orders. Among them, sand obligate species as the indicator species of sand dune were composed of 24 species in 12 families of 3 orders. The diversity of indicator species may indirectly suggest that the value of conservation at Weolsong-ri coastal dune is relatively high, compared to those of the latest surveyed coastal sand dune including Kwangseung (2007) and Donghori(2008). However, Erosion of sand dune become progressive more deeply than that of 2006 and badly impacted on important dune sites to maintain the diversity of insect in Weolsong-ri coastal dune. Among 23 sand obligate species, which observed on summer of 2006, only 16 species were recognized at the same season of 2008. Therefore, rare and local distributed species among sand obligate species might be threatened by pressure causing erosion and disturbance of the habitat.