전라남도 연안습지에 도래하는 수조류의 서식지 이용에 관한 연구

Abstract

This study focused on the waterbird population that spend winter in the important coastal wetlands, including Suncheon Bay and Yeongsan Lake, located in Jeonnam province from 2000 through 2003. Based on the survey, it was aimed to analyze assessment on the importance of these regions by using the wintering status of waterbirds, the characteristics of classified groups, and various indices and to seek ways to find their ecological characteristics. When the observed waterbirds were classified into groups with similar ecological characteristics, a total of 14 classified groups were observed. Among these, major waterbirds that inhabit on water surface or watersides were eight groups. A cluster analysis was conducted using CCs (Sørensen's index of similarity and Ro (Horn's index of community overlap). The results showed that out of the seven areas, it was Suncheon Bay that had the most unique species mix. Bay areas had the different species and population mix from lake areas. Based on the maximum population, the Suncheon Bay is ranked the highest, meaning the most important habitat for waterbirds, followed by Boseong- Deukryang Bay, Gangjin Bay, Gocehongam Lake, Geumho Lake, Yeomam Lake, and Yeongsan Lake. In overall, the importance of bay areas was relatively higher than that of lake areas. Classified groups that showed high rate of using bay areas than lake areas were in an order of waders, gulls and swans. On the other hand, the groups that showed high rate of using lake areas than bay areas were dabbling ducks, grebes and geese. In conclusion, the types of classified groups that use bay areas and those using lake areas were quite different.