Differences in Moth Diversity in Two Types of Forest Patches in an Agricultural Landscape in Southern Korea - Effects of Habitat Heterogeneity -
2009
Choi, S.W., Mokpo National University, Muan, Republic of Korea | Park, M.R.N., Mokpo National University, Muan, Republic of Korea | Kim, H., Mokpo National University, Muan, Republic of Korea
This research focused on the effects of fragmentation on moth diversity in an agricultural landscape by comparing moth species richness and abundance between hillocks and young secondary forests. We examined five sites from the southwestern part of South Korea: three sites from hillock forest and two from secondary forest. We collected moths bi-weekly from April to October for a 2-year period (2006-2007) with a UV light trap that usually attracts moths within 30 meters. Tree species richness and abundance in 20 m × 20 m plots at each moth sampling site showed a substantial difference in tree diversity between the two types of forest habitats. The total abundance and richness of moth species were higher in secondary forests (541 species with 4,998 individuals) than in hillock forests (423 species with 3,913 individuals), irrespective of the distance among the sites. An ordination analysis with NMDS showed that habitat is the most important factor of grouping sites. The food preferences of the dominant moth species in each habitat were closely related to the habitat type.
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