토지피복도를 활용한 수달의 서식지 이용에 관한 연구
A study of habitat use pattern of river otters (Lutra lutra) with land-cover map
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참고문헌
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Abstract
The Eurasian otter(Lutra lutra) is listed as No. 330 in natural monument. To manage andconserve habitat for otters, it is critical to understand which habitat components are important forotters. The objectives of this study were to analyze otter habitat characteristics in accordance withland-cover map. We investigated otter spraints and sprainting site in Geoje Island from January toDecember, 2004. with GPS coordinates. The analysis of otter habitat use pattern was used byArcview ver. 3.2 with 1: 25,000 Topology Map and field data. Otter habitat use was stronglyrelated to sites in riparian vegetation riparian(dam or river) structures. In this study, Gucheon wasa site with high coverage of riparian vegetation and unconfined channels, thus recording highernumber of spraint densities than those of Yeonchocheon. Yeonchocheon was under constructionat lower stream areas so that otter habitat use was limited. This study suggests that securingsuitable forests and riparian vegetation zone is essential for conservation of otters.
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