Eur. J. Entomol. 107: 229–245, 2010 http://www.eje.cz/scripts/viewabstract.php?abstract=1532 ISSN 1210-5759 (print), 1802-8829 (online) Altitudinal distribution of moths (Lepidoptera) in Mt. Jirisan National Park, South Korea SEI-WOONG CHOI1 and JEONG-SEOP AN 2 1 Department of Environmental Education and 2 Department of Biology, Mokpo National University, Jeonnam 534-729, South Korea; e-mails:
[email protected];
[email protected] Key words. Lepidoptera, species diversity, moths, altitude, distribution, mid-domain effect, Korea Abstract. The relationship between species richness of plants and animals and altitude can be either hump-shaped, a monotonic decrease or increase. In this study the altitudinal distribution of moths on one of the highest mountains in South Korea was investi- gated. Moths were captured using a UV-light trap from May to October in 2007 and 2008. This revealed that the relationship between the total numbers of moth species and individuals and altitude is hump-shaped. A significant relationship was also recorded between the size of the area at each altitude and moth abundance and richness. However, the evenness index yielded a consistent decrease with increase in altitude because of the dominance of few species at high altitudes. Non-metric multidimensional scaling identified two major axes for the moth assemblage on Mount Jirisan. The correlations between the axes and variables demonstrated that the first axis was strongly correlated with altitude and aspect and the second axis with forest and site location. INTRODUCTION Indonesian tropical rainforests (Casson & Hodkinson, Mountains are found on all continents. High altitude 1991) exhibit no clear altitudinal trends (Hodkinson, ecosystems on mountains differ from all other ecosystems 2005).