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도서 지역에 서식하는 외래종 대만꽃사슴의 행동 특성

Characteristic of Activity Pattern of Introduced Sika Deer (Cervus nippon taiouanus) in a Island

  • 엄태경 (중앙대학교 대학원 생명자원공학부) ;
  • 이재강 (중앙대학교 대학원 생명자원공학부) ;
  • 이동호 (중앙대학교 대학원 생명자원공학부) ;
  • 고현규 (중앙대학교 대학원 생명자원공학부) ;
  • 임신재 (중앙대학교 생명자원공학부)
  • Tae-Kyung Eom (School of Bioresource and Bioscience, Chung-Ang University) ;
  • Jae-Kang Lee (School of Bioresource and Bioscience, Chung-Ang University) ;
  • Dong-Ho Lee (School of Bioresource and Bioscience, Chung-Ang University) ;
  • Hyeon-gyu Ko (School of Bioresource and Bioscience, Chung-Ang University) ;
  • Shin-Jae Rhim (School of Bioresource and Bioscience, Chung-Ang University)
  • 투고 : 2022.12.26
  • 심사 : 2023.02.07
  • 발행 : 2023.02.28

초록

본 연구는 무인센서카메라를 이용하여 도서 지역에 도입된 대만꽃사슴(Cervus nippon taiouanus)의 행동 특성을 파악하기 위하여 2021년 10월부터 2022년 10월까지 인천광역시 옹진군에 위치한 굴업도에서 실시되었다. 무인센서카메라 포착빈도의 커넬 밀도 추정치로 대만꽃사슴의 계절별 일일 행동 패턴을 나타내었으며, 계절 간 중첩계수를 분석하여 계절에 따른 차이를 확인하였다. 굴업도에 도입된 대만꽃사슴은 겨울에만 박명(crepuscular) 형태의 행동 패턴을 보였으며, 봄부터 가을까지는 뚜렷한 형태가 나타나지 않았다. 박명 형태의 행동 패턴은 사슴류에 있어서 포식 위험을 낮추기 위한 일반적인 형태인데, 굴업도에 도입된 대만꽃사슴은 겨울에 지자체에서 실시하는 구제작업에 의해 영향을 받아 박명 형태의 활동을 하는 것으로 판단된다. 이는 봄부터 가을까지 빈번하게 발생하는 야영(back packing) 등의 인간 활동이 대만꽃사슴의 행동에 영항을 미치지 않는 것과 대조되는 결과였다. 또한, 겨울의 낮은 기온이 대만꽃사슴의 야간 행동에 영향을 주는 것으로 나타났다. 겨울의 추운 날씨와 구제작업에 의해 대만꽃사슴의 행동 패턴은 여름과 겨울 사이에 가장 낮게 중첩되었다. 본 연구에서 확인된 대만꽃사슴의 시간적 지위와 더불어 계절별 기온과의 관계는 도서 지역뿐 아니라 내륙 지역에 도입된 대만꽃사슴의 관리 방안을 수립하는데 중요한 기초 생태 자료가 될 수 있을 것으로 판단된다.

This study was conducted from October 2021 to October 2022 at Gulup island, Incheon, South Korea, to identify activity patterns of Formosan sika deer (Cervus nippon taiouanus) introduced in island areas, using camera trapping. We described the daily activity patterns of Formosan sika deer in each season by analyzing kernel density estimates of capture frequency and checked seasonal differences in daily activity patterns by analyzing the overlap coefficient between seasons. Formosan sika deers introduced to Gulup island showed a crepuscular behavior pattern only in winter and no distinct pattern from spring to fall. The crepuscular behavior pattern is typical for deers to reduce the risk of predation, and it is determined that Formosan sika deers introduced to Gulup island were affected by population control of the species by the local government in the winter. It was in contrast to the fact that human activities, such as backpacking, frequently carried out from spring to fall, did not affect the behavior of Formosan sika deers. Moreover, low winter temperatures have been shown to affect the nocturnal activities of Formosan sika deers in winter. The behavior patterns of Formosan sika deers overlapped least between summer and winter due to cold winter weather and population control. The relationship between the temporal status of Formosan sika deers and seasonal temperature confirmed in this study can be important basic ecological data for establishing control measures of Formosan sika deers introduced not only in islands but also in inland.

키워드

과제정보

본 결과물은 환경부의 재원으로 한국환경산업기술원의 생물다양성 위협 외래생물 관리 기술개발사업의 지원을 받아 연구되었음(2021002280001).

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