Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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A Study on the Community Variation of Wintering Waterbirds in Geum River, Korea

금강하구에 도래하는 수조류의 월동기 군집 변화 연구

  • Received : 2014.02.11
  • Accepted : 2014.04.03
  • Published : 2014.04.30
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Abstract

This study was conducted to clarify the community characteristics of wintering waterbirds in Geum River from September, 2011 to March, 2012 (1st) and from September, 2012 to March, 2013 (2nd). 63 species of waterbirds including raptors were observed during the survey. 50 species of 188,673 individuals recorded during the first survey, and 56 species of 116,611 individuals were recorded during the second survey. The dominant species was high dominance dabbling ducks by Baikal Teals, Mallards, Spot-billed Ducks, Greater White-fronted Geese, Black-tailed Gulls and Common Shelducks. We classified the wintering waterbirds into 9 taxa based on the similar ecological characteristics and analyzed the correlation with temperature. As a result, dabbling ducks, diving ducks and raptors showed positive correlation and herons and waders showed negative correlation. Geese, swans and dabbling ducks were high habitat utilization ratio at the Geumgang estuary barrage upstream area, and diving ducks, herons, waders and gulls were high habitat utilization ratio at the Geumgang estuary barrage downstream area.

본 연구는 월동기에 해당하는 2011년 9월부터 2012년 3월까지(1차)와 2012년 9월부터 2013년 3월까지(2차) 금강하구에 도래하는 수조류 군집의 특성을 파악하기 위해 실시하였다. 조사기간 동안 맹금류를 포함한 수조류는 총 63종이 관찰되었고, 1차조사에서 50종 188,673개체, 2차조사에서 56종 116,611개체가 기록되었다. 주요 우점종은 가창오리, 청둥오리, 흰뺨검둥오리, 쇠기러기, 괭이갈매기, 혹부리오리 등으로 수면성오리류의 우점률이 높았다. 유사한 생태적 특성을 고려하여 9개 분류군으로 구분하여 기온과의 상관관계를 분석한 결과 수면성오리류, 잠수성오리류, 맹금류는 음의 상관관계를 보였으며, 백로류와 섭금류는 양의 상관관계를 보였다. 기러기류, 고니류, 수면성오리류는 금강하구둑 상류지역의 서식지 이용률이 높았고, 잠수성오리류, 백로류, 섭금류, 갈매기류는 하류지역의 이용률이 높았다.

Keywords

References

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