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관박쥐 (Rhinolophus ferrumequinum)의 지역개체군 간 반향정위 (Echolocation)의 차이

Echolocation Call Differences among Local Populations of Greater Horseshoe Bats (Rhinolophus ferrumequinum)

  • 장둘리 (경희대학교 대학원) ;
  • 김선숙 (국립생태원 생태연구본부 생태기반연구실) ;
  • 유정칠 (경희대학교 대학원)
  • Jang, Dooly (Department of Biology, Graduate School, Kyung Hee University) ;
  • Kim, Sun-Sook (Division of Basic Research, Bureau of Ecological Research, National Institute of Ecology) ;
  • Yoo, Jeong-Chil (Department of Biology, Graduate School, Kyung Hee University)
  • 투고 : 2016.10.28
  • 심사 : 2016.12.28
  • 발행 : 2016.12.31

초록

지리적 격리는 생태학적 특징의 차이를 유발한다. 지리적인 격리는 박쥐 종 내의 소리 차이의 원인으로 알려져 왔다. 본 연구는 관박쥐의 반향정위가 지리적 차이에 의해 차이가 있는지를 알기 위해 우리나라 섬(제주도)과 내륙에서 수행되었다 우리는 내륙과 섬(제주도)에서 관박쥐가 활동기간에 휴식처로 이용하는 것으로 알려진 폐광과 동굴을 연구 지역으로 선정하였다. 관박쥐의 Hand-held call과 Free-flying call을 녹음하였다. 녹음된 펄스(pulse)는 관박쥐의 Hand-held call과 Free-flying call을 녹음하였다. 분석 결과, 내륙에서 서식하는 관박쥐의 PF는 평균 69 kHz로 섬(제주도)에 서식하는 관박쥐의 PF (71 kHz)와 차이가 났다. 판별 분석 결과에서도 내륙과 섬의 반향정위는 차이를 보였다. 우리나라 관박쥐 개체군의 PF는 유럽(82 kHz)보다는 낮고, 일본(65 kHz)보다는 높았다.

Geographical isolation may lead to the populations having different ecological characteristics. Geographic isolation have been known to cause echolocation call differences in bats. In order to look at geographic differences of echolocation calls of Great Horseshoe Bats (Rhinolophus ferrumequinum), populations of inland and Jeju island habitats were examined in Korea. The study areas were some abandoned mines in the inland and caves of Jeju island, which were known as rest sites of Great Horseshoe Bats during the active season. Recording was done in two ways: Hand-held, Free-flying. Recording pulse was analyzed into five parameters: Maximum Frequency (FMAX), Minimum Frequency (FMIN), Peak Frequency (PF), Duration (D), Inter pulse Interval (IPI). Interestingly, The present study shows that the difference in echolocation between the inland and island populations. The PF of bats inhabited inland was 69 kHz. but, the PF of bats inhabited island (Jeju) was 71 kHz. There was a difference between regions. Discriminant analyses also showed clear difference between the inland and the island populations. Especially, PF of Korea population is lower than that of Europe (82 kHz) and higher than that of Japan (65 kHz).

키워드

참고문헌

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