Wintering Status of Waterbirds in Three Reclaimed Areas of the West Coast of Korea = 서해안 세 간척지역에서의 수조류 월동현황

국문 초록 (Abstract)

서해안의 세 간척지(아산만, 대호, 천수만)에서 1994/1995 겨울 동안 관찰된 수조류는 총 59종 240,771개체였다. 우점종은 청둥오리, 가창오리, 고방오리, 흰뺨검둥오리, 큰기러기 순 이었다. 세 지역 모두 논에서 취식하는 청둥오리가 최우점종이었다. 세 지역 중 가장 많은 수조류가 도래한 곳은 천수만으로 총 53종, 208,179개체였다. 월 별 개체수 변동은 천수만 지역이 가장 컸다. 개체수 변동에 영향을 미친 요인으로는 온도변화, 밀렵에 의한 방해, 그리고 논 갈아엎기 등이 있었다.

다국어 초록 (Multilingual Abstract)

During the winter season of 1994-95, a total of 59 waterbirds were recorded, and the sum of the peak counts of each species recorded in the three reclaimed areas was 240,771 individuals. The dominant species were the Mallard (Anas platyrhynchos), Baikal Teal (A. formosa), Pintail (A. acuta), Spotbill Duck (A. poecilorhyncha), and Bean Goose (Anser fabalis) in order. The Mallard was the most dominant species in the three reclaimed areas. Among the three reclaimed areas, the largest population of waterbirds was recorded in Chonsu bay: 53 species and 208,179 individuals. The monthly fluctuations of waterbird population were more variable in Chonsu bay than other two areas. The population fluctuation of waterbirds in Chonsu bay was closely related to the low temperature. But illegal hunting and plowing rice paddies out also affected on the population fluctuations of waterbirds.