In the crisis of biodiversity, there is a lot of work being done to construct habitats. Wetlands especially have high value as habitats for various types of wildlife. This study is conducted to restore habitats of Nannophya pygmaea Rambur which inhabits wetlands. Nannophya pygmaea is an endangered s...
In the crisis of biodiversity, there is a lot of work being done to construct habitats. Wetlands especially have high value as habitats for various types of wildlife. This study is conducted to restore habitats of Nannophya pygmaea Rambur which inhabits wetlands. Nannophya pygmaea is an endangered species of wildlife fauna, and its habitats are distributed very scarcely in Korea. First, the importance was investigated through a theoretical study of general ideas about wetlands and systems related to biodiversity. Cases at home and abroad were surveyed to collect techniques of habitat construction. The habitats of Nannophya pygmaea were distributed scarcely and the studies of it were very limited in Korea. Therefore, this study investigated wetland sites throughout Korea, where N. pygmaea had inhabited from June 2006 to August 2007 to provide basic information that can be used to restore habitats of N. pygmaea. As a result, N. pygmaea was generally found in the abandoned paddy fields in the beginning stage of oligotrophy surrounded by mountains. The habitats were mostly dominated by Juncus effuses and Persicaria thunbergii. In addition, the depth of water was from 2.6㎝ to 7.3 ㎝, and the water temperature ranged from 16℃ to 27.8℃. In accordance with these investigated results, the indoor habitat experiment plot was conducted. Juncus effuses and Persicaria thunbergii, the major dominant types of vegetation of the N. pygmaea habitats, had good establishment and growth, and P. thunbergii showed an especially rapid growth rate. The appearance frequency rate of adult N. pygmaea is higher in P. thunbergii plots, and larva N. pygmaea is higher in J. effuses plot with a water dept of 5㎝. As these results indicate, it is necessary to make both vegetated areas and open water areas, and it is necessary to set up a suitable management plan when make habitats for N. pygmaea to maintain the habitats. Lastly, the master plan of habitats for N. pygmaea was made, selecting an abandond paddy field in Gurye-gun, Jeollanam-do as a potential area. The basic concepts of the plan are as follows: First, construct the habitats suitable for target species reflecting the investigated results. Second, try to preserve the existing topography and vegetation. Third, devise management plans to maintain wetland habitats and prevent wetland from becoming dry. The master plan was made by a land use plan, a topography plan, a hydrologic plan, and a planting plan. This study is crucial to try to plan for the habitat of N. pygmaea which is an endangered species. The study which is about habitats of N. pygmaea is insufficient, and it is necessary for us to broaden various works of ecology and habitats of these protected species in Korea.
In the crisis of biodiversity, there is a lot of work being done to construct habitats. Wetlands especially have high value as habitats for various types of wildlife. This study is conducted to restore habitats of Nannophya pygmaea Rambur which inhabits wetlands. Nannophya pygmaea is an endangered species of wildlife fauna, and its habitats are distributed very scarcely in Korea. First, the importance was investigated through a theoretical study of general ideas about wetlands and systems related to biodiversity. Cases at home and abroad were surveyed to collect techniques of habitat construction. The habitats of Nannophya pygmaea were distributed scarcely and the studies of it were very limited in Korea. Therefore, this study investigated wetland sites throughout Korea, where N. pygmaea had inhabited from June 2006 to August 2007 to provide basic information that can be used to restore habitats of N. pygmaea. As a result, N. pygmaea was generally found in the abandoned paddy fields in the beginning stage of oligotrophy surrounded by mountains. The habitats were mostly dominated by Juncus effuses and Persicaria thunbergii. In addition, the depth of water was from 2.6㎝ to 7.3 ㎝, and the water temperature ranged from 16℃ to 27.8℃. In accordance with these investigated results, the indoor habitat experiment plot was conducted. Juncus effuses and Persicaria thunbergii, the major dominant types of vegetation of the N. pygmaea habitats, had good establishment and growth, and P. thunbergii showed an especially rapid growth rate. The appearance frequency rate of adult N. pygmaea is higher in P. thunbergii plots, and larva N. pygmaea is higher in J. effuses plot with a water dept of 5㎝. As these results indicate, it is necessary to make both vegetated areas and open water areas, and it is necessary to set up a suitable management plan when make habitats for N. pygmaea to maintain the habitats. Lastly, the master plan of habitats for N. pygmaea was made, selecting an abandond paddy field in Gurye-gun, Jeollanam-do as a potential area. The basic concepts of the plan are as follows: First, construct the habitats suitable for target species reflecting the investigated results. Second, try to preserve the existing topography and vegetation. Third, devise management plans to maintain wetland habitats and prevent wetland from becoming dry. The master plan was made by a land use plan, a topography plan, a hydrologic plan, and a planting plan. This study is crucial to try to plan for the habitat of N. pygmaea which is an endangered species. The study which is about habitats of N. pygmaea is insufficient, and it is necessary for us to broaden various works of ecology and habitats of these protected species in Korea.
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