Distribution and Species Diversity of Beetles (Coleoptera) on Mt. Georyu, Goseong-gun, Korea

초록

This study was conducted to evaluate forest health and biodiversity by investigating the distribution and diversity of beetles (Coleoptera) on Mount Georyu, Goseong-gun. Beetles were sampled at different altitudes (100-500 m) on the southern and northern slopes between April and September 2024 using pitfall traps, sweeping, and direct collection. A total of 1,284 individuals belonging to 40 species and 13 families were collected. The dominant species was Propylea japonica (14%) followed by Coccinella septempunctata (10%). Seasonal analysis revealed the highest abundance in June (273 individuals) and May (245 individuals). The highest abundance was observed at 100 m (352 individuals), and declined with increasing altitude. The northern slope (796 individuals, 33 species) showed higher abundance and species richness and abundance than the southern slope (488 individuals, 26 species). The diversity index (H ’) was slightly higher on the north slope (1.325) than on the south slope (1.268). The similarity index between the two slopes was 64%. These results suggest that vegetation structure and microclimate differences between slopes and altitudes substantially affected beetle assemblages on Mt. Georyu.

키워드