Temporal variation in different life stages of moths (Lepidoptera) from a southwestern temperate forest of Korea: A preliminary study
Choi, Sei-Woong | An, Jeong-Seop | Na, Sang-Hyun | Lee, Jin
Two study sites in a temperate forest in Mt. Seungdal-san, Muan, Jeonnam in southwestern Korea were selected for the collection of caterpillars and adult moths (Lepidoptera). Here, we determined (1) the characteristics of moth fauna based on lepidopteran larvae and adults, and (2) the differences in temporal variation between these two developmental stages. In addition, we investigated the life history of moth species collected at the surveyed sites. Of the 206 caterpillars collected, 17 moth species from 9 families were successfully reared. A total of 342 adult moth species and 2108 individuals from 15 families were collected. Twenty-two plants were identified as host plants of 188 caterpillars. Two tree species, Prunus serrulata var. spontanea and Quercus serrata, were widely distributed in the study sites. Leaf water content (%) of Quercus serrata and Carpinus laxiflorawas the highest in June, whereas the leaf water content of Platycarya strobilacea was the highest in August. We postulated that many of the variables in the temperate forest, such as host plant availability, parasitoids, disease, and weather, affected the lepidopteran caterpillar populations. There were differences in species composition among the sampling methods which suggest the need for diverse methods to uncover total biodiversity. However, it should be noted that a long term and well-planned study with efficient rearing of caterpillars is needed to better understand these correlations.
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