초록 열기/닫기 버튼
금개구리의 대체서식지로 선택되는 환경인 논과 생태공원에서 2017년 7월부터 11월까지 무선 추적법을 사용하여 금개구리의이동거리 및 행동권을 파악하였다. 총 39개체의 금개구리를 대상으로 행동권을 추적하였다. 논 개체군의 평균이동거리는 11.7 ± 1.9 m (n = 64)이었고, 생태공원 개체군은 24.7 ± 4.3 m (n = 39)이었으며, 두 개체군 간 이동거리는 차이가 있었다. 논 개체군의평균 MCP는 181.2 ± 110.8 m2 (n = 11)이었고, 생태공원 개체군은 416.1 ± 276.2 m2 (n = 10)이었으며, 지역 간의 MCP는 차이가없었다. 논 개체군의 서식영역 (Kernel 95%)은 4,160 m2, 핵심 서식영역 (Kernel 50%)은 1,080 m2 이었고, 생태공원 금개구리 개체군의서식영역은 5,391 m2, 핵심 서식영역은 736 m2이었다. 금개구리 대체서식지의 면적은 최소 1.33 ha로 조성하는 것이 적합하고, 개발압과 인간의 간섭이 많은 논 보다는 생태공원이 유리한 것으로 판단된다. 그러나 묵논과 같은 형태이거나 농기계와 농약의사용 자제하는 전통 농법을 사용한 논이라면 금개구리 대체서식지로 활용할 수 있을 것이다.
The movement distance and home range size of Pelophylax chosenicus were identified in the rice paddy and ecological park as alternative habitats from July to November 2017. A total of 39 frogs were tracked by radio tracking method. As a result, the average move distance in the population of rice paddy was 11.7 ± 1.9 m (n = 64) and the population of ecological park was 24.7 ± 4.3 m (n = 39). The move distance between the two populations was significantly different. The mean MCP of the population of rice paddy was 181.2 ± 110.8 m2 (n = 11) and the population of ecological park was 416.1 ± 276.2 m2 (n = 10), but there was no significant difference. The population area of rice paddy was 4,160 m2 (Kernel density 95%) and the core area was 1,080 m2 (Kernel density 50%). The population area (Kernel density 95%) of ecological park was 5,391 m2 and the core area (Kernel density 50%) was 736 m2. This study shows that it is appropriate to construct the area of alternative habitat for P. chosenicus at least 1.33 ha, and it is more advantageous for the ecological park to be constructed than the paddy field with high development pressure and human interference. If the rice paddies were to be abandoned for several years, or to be used traditional farming methods, such as refraining from using agricultural machinery and chemicals, they could be used as alternative habitat for P. chosenicus.
키워드열기/닫기 버튼
Endangered species, Kernel density, MCP (Minimum Convex Polygon), Radio-telemetry
