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Effect of weight of radio-transmitters on survival of Red-tongue viper snake (Gloydius ussuriensis) and Short-tailed viper snake (Gloydius saxatilis)in the radio-transmitter implantation

발신기 삽입시 발신기 무게가 쇠살모사(Gloydius ussuriensis)와 까치살모사(Gloydius saxatilis)의 생존에 미치는 영향

  • 도민석 (경희대학교 생물학과) ;
  • 심재한 (한국 양서.파충류 생태복원 연구소) ;
  • 최영민 (우성동물의료센터) ;
  • 유정칠 (경희대학교 생물학과)
  • Received : 2013.10.11
  • Accepted : 2014.01.10
  • Published : 2014.02.28

Abstract

In order to study the home range of the red-tongue viper snake (Gloydis ussuriensis) and the short-tailed viper snake (Gloydius saxatilis) belonging to the viperidae of squamat in Korea, we implanted radio-transmitters which were weighed less than 5% of individual mass in them and traced their location by radio-tracking. Surgeries for transmitter insertion were performed on 5 red-tongue viper snakes and 6 short-tailed viper snakes (total 11 individuals) and the average ratio of transmitter mass to body mass were 4.2% and 2.2%, respectively. After radio-transmitter implantation, all short-tailed viper snakes survived but 4 out of 5 red-tongue viper snakes did not survive during the convalescence stage, showing only 20% of survival rate. The results suggest that the ratio of transmitter mass to body mass should be less than 3.6% at least in these species, although previous studies have recommended various ranges from 1% to 7% as the acceptable ratios.

한국에 서식하는 뱀목(Squamata) 중 살모사과(Viperidae)에 속하는 쇠살모사(Gloydius ussuriensis)와 까치살모사(Gloydius saxatilis)를 대상으로 무선추적기법을 이용한 행동권 연구를 수행하기 위해 모든 개체에게 체중 대비 5% 이내의 발신기를 삽입하였다. 쇠살모사 5개체, 까치살모사 6개체 총 11개체를 대상으로 발신기 삽입수술을 시행한 결과 쇠살모사의 경우 체중 대비 발신기 무게 비율은 평균 4.2%였으며, 까치살모사의 경우 평균 2.2%였다. 발신기삽입 후 회복기간 동안 까치살모사는 모두 생존한 반면 쇠살모사는 전체 5개체 중 4개체가 생존하지 못해 생존율이 20% 밖에 되질 않았다. 이전의 선행 연구들에서는 체중 대비 발신기 무게 비율을 1-7%까지 다양하게 권고하고 있지만, 이번 연구결과는 쇠사모사와 까치살모사의 행동생태 연구에서 이용되는 몸무게에 대한 발신기 무게 비율은 최소 3.6% 이내로 정해야 안전하다는 것을 보여준다.

Keywords

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