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A Preliminary Study on a Restoration of Habitats for Nannophya pygmaea Rambur (Odonata: Libellulidae)  

Lee, Eun-Heui (Division of Environmental Life Sciences, Seoul Women's Univ.)
Jang, Ha-Kyung (Graduate school, Seoul Women's Univ.)
Park, Min-Young (Graduate school, Seoul Women's Univ.)
Yoon, Ji-Hyun (Dept. of Biology Education, Seoul National Univ.)
Kim, Jae-Geun (Dept. of Biology Education, Seoul National Univ.)
Bae, Yeon-Jae (Division of Environmental Life Sciences, Seoul Women's Univ.)
Publication Information
Korean Journal of Environment and Ecology / v.22, no.1, 2008 , pp. 35-42 More about this Journal
Abstract
This study was conducted to provide basic information that can be used to restore habitats of Nannophya pygmaea. Nannophya pygmaea is an endangered species of wildlife fauna in Korea and its habitats are distributed very scarcely in Korea. Ten wetland sites throughout Korea, where N. pygmaea inhabited (2 sites in Incheon Muui-do, 1 site in Gokseong Singi-ri, 4 sites in Gokseong Wolbong-ri, and 3 sites in Mungyeong Yulsu-ri) were investigated from June 2006 to August 2007. Investigation was made on landscape properties, habitat sizes, vegetation types, water environments, and water sources. N. pygmaea was generally found in the abandoned paddy fields surrounded by mountains. The habitats ranged from $113.4m^2$ to $1,153.1m^2$ in area, and were mostly dominated by Juncus effusus and Persicaria thunbergii. The water level was $2.6\sim7.3cm$, and the water temperature ranged from $16^{\circ}C$ to $27.8^{\circ}C$. The elevation of the habitats ranged from 139 to 243 m above sea level, which was mostly lower than that of other high mountain wetland habitats. In conclusion, the habitats of N. pygmaea can be restored at wetlands, which have similar condition with field habitat such as abandoned paddy fields in the beginning stage of oligotrophy. Because N. pygmaea is sensitive to microtopography and other surrounding environments, the approach to restore the habitats for N. pygmaea should consider those microhabitat conditions shown in this study.
Keywords
ENDANGERED SPECIES; DRAGONFLY; WETLAND; ABANDONED PADDY FIELDS; OLIGOTROPHY;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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