Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
권호 표지

A study of Habitat Use Pattern of River Otters (Lutra lutra) with Land-cover Map

토지피복도를 활용한 수달의 서식지 이용에 관한 연구

  • Lee, Sang-Don (Dept. of Environmental Science and Engineering, College of Engineering, Ewha Womans University) ;
  • Cho, Heesun (Dept. of Environmental Science and Engineering, College of Engineering, Ewha Womans University)
  • 이상돈 (이화여자대학교 공과대학 환경학과) ;
  • 조희선 (이화여자대학교 공과대학 환경학과)
  • Received : 2005.09.02
  • Accepted : 2005.10.31
  • Published : 2005.12.31
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Abstract

The Eurasian otter(Lutra lutra) is listed as No. 330 in natural monument. To manage and conserve habitat for otters, it is critical to understand which habitat components are important for otters. The objectives of this study were to analyze otter habitat characteristics in accordance with land-cover map. We investigated otter spraints and sprainting site in Geoje Island from January to December, 2004. with GPS coordinates. The analysis of otter habitat use pattern was used by Arcview ver. 3.2 with 1: 25,000 Topology Map and field data. Otter habitat use was strongly related to sites in riparian vegetation riparian(dam or river) structures. In this study, Gucheon was a site with high coverage of riparian vegetation and unconfined channels, thus recording higher number of spraint densities than those of Yeonchocheon. Yeonchocheon was under construction at lower stream areas so that otter habitat use was limited. This study suggests that securing suitable forests and riparian vegetation zone is essential for conservation of otters.

Keywords

References

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