Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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Control of Rattus norvegicus on Uninhabitable Islands - Case of Sasudo Island -

무인도에서 집쥐 개체군의 포획과 제어 - 제주 사수도의 사례 -

  • Jun-Won Lee (Faculty of science Education, Jeju National University) ;
  • Ga-Ram Kim (Faculty of science Education, Jeju National University) ;
  • Seon-Mi Park (Practical Translational Research Center, Jeju National University) ;
  • Sung-Hwan Choi (Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University) ;
  • Young-Hun Jung (Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University) ;
  • Hong-Shik Oh (Faculty of science Education, Jeju National University)
  • 이준원 (제주대학교 대학원 과학교육학부) ;
  • 김가람 (제주대학교 대학원 과학교육학부) ;
  • 박선미 (제주대학교 기초과학연구소) ;
  • 최성환 (제주대학교 차세대융복합과학기술협동과정) ;
  • 정영훈 (제주대학교 차세대융복합과학기술협동과정 ) ;
  • 오홍식 (제주대학교 과학교육학부 )
  • Received : 2022.10.06
  • Accepted : 2022.11.24
  • Published : 2022.12.31
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Abstract

Brown rats (Rattus norvegicusBerkenhout, 1769) were eradicated from Sasudo Island (33°55'13.04" N, 126°38'19.98" E), an uninhabited island designated as Natural Monument No. 333 and the largest breeding site for the streaked shearwater (Calonectris leucomelasTemminck, 1835) in South Korea. Twelve eradication studies were conducted from November 2015 to February 2021. The survey was conducted using a line census method that entailed slow wandering throughout the island and identifying starting and returning points. Capture traps were installed around traces of Rattus norvegicus,such as excrement and identified holes. As a result, 2 to 6 individuals were captured at each instance, except for the last time, when no individuals were captured. It is hypothesized that brown rats arrived at Sasudo Island via vessels arriving at the island for leisure and fishing. After the damage to streaked shearwater caused by brown rats was confirmed in 2006, entry to Sasudo Island was strictly prohibited through security measures, and marine clean-up programs that began in 2013 and continuous capturing since 2015 have been successful in eradicating brown rats. To maintain and manage the condition in Sasudo Island, preservation and management measures, such as strict visitor control, are necessary to prevent the inflow of new brown rats in the future.

본 집쥐 퇴치 계획은 대한민국 최대 슴새 번식지 및 흑비둘기 서식처로 천연기념물 제333호로 지정되어있는 제주특별자치도 소재(33°55'13.04"N, 126°38'19.98"E) 무인도서인 사수도 내 집쥐 퇴치를 위해 이루어졌다. 구제 연구는 2015년 11월부터 2021년 2월까지 총 12차례 진행되었고, 조사는 섬 전역을 천천히 배회하며 출발지점과 도착지점을 동일하게 하여 조사하는 선조사법을 이용하였다. 이 때 확인된 배설물, 터널 등 Rattus norvegicus 흔적 주변에 포획트랩을 설치하였다. 그 결과 매 차시 최소 2개체 ~ 최대 6개체가 포획되던 개체가 마지막에는 포획되지 않았다. 집쥐가 사수도에 유입된 경로는 과거 레저 및 어업을 위해 출입하는 배를 통하여 유입되었을 것으로 추정하고 있다. 2006년 집쥐로 인한 슴새의 피해가 확인된 후 철저한 경비를 통하여 사수도 출입을 엄격히 금하고 2013년 해양정화 사업과 2015년부터 지속된 포획을 통하여 구제가 성공적으로 이루어지고 있는 것으로 판단된다. 본 상태 유지 및 관리를 위해서 앞으로 새로운 집쥐의 유입을 제어하기 위하여 지속적이고 철저한 출입관리를 이어가 출입자를 엄격히 통제하는 등의 보존 관리방안이 필요하다 할 수 있다.

Keywords

Acknowledgement

이 논문은 제주특별자치도의 재원으로 제주특별자치도 세계유산본부의 제주 사수도 바닷새류(흑비둘기,슴새) 번식지 설치류 현황파악 및 모니터링(20201008B4B-00)의 지원을 받아 수행되었다.

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