Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
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Long-term population monitoring with population viability analysis of river otter in Korea

홍천강 유역에 서식하는 멸종위기종 수달의 개체군변이분석을 통한 생태모니터링 연구

  • Lee, Sang-Don (Dept. of Environmental Sciences & Engineering, College of Engineering, Ewha Womans University)
  • 이상돈 (이화여자대학교 환경공학과)
  • Received : 2013.08.28
  • Accepted : 2013.09.10
  • Published : 2013.10.31
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Abstract

River otter(Lutra lutra) are listed as endangered species and Natural monument in Korea, and this study examined the possibility of extinct of river otter in Hongchon river using with the application of Population Viability Analysis (PVA) technique. In Hongchon river areas population was estimated 9 individuals for the last 1999-2005 years and PVA analysis was done for the next 10 years using the average population of 9. Using the initial population the river otter was estimated 30% of extinct for the next 10 years. This estimation was quite low considering water pollution and construction of highways. Also PVA only used population size lacking in other life history information. Nonetheless river otter population can be in risk of extinction if the current construction of crossovers, cement bank are maintained. Long term information regarding life history needs essential.

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References

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