철새 중간기착지인 전남 홍도에서 참새목 조류의 서식지 이용 = Habitat Use of Passerine Birds at Hongdo Island, a Stopover Site

다국어 초록 (Multilingual Abstract)

This study was conducted to examine the pattern of habitat use of passerine migrants at Hongdo Island, Jeollanamdo Province, Korea from March 2006 to October 2007. The richness and abundance of species were the highest in shrubs among major habitat types including trees, shrubs, grass, agricultural fields. There were significant differences at trees, shrubs and agricultural fields among bird behavior. The frequency of resting and feeding was highest at trees (x2=61.583, df=2, p<0.001) and agricultural fields, respectively(x2=117.339, df=2, p<0.001). In the shrub was similar in both resting and others behaviors, while the frequency of feeding was lowest (x2=66.725, df=2, p<0.001). There were significant differences in observed individuals in relation to seasons. In autumn, number of observed individuals was higher in tree, lower in shrub, grass, agricultural field than spring. Habitat diversity (H') was significantly correlated with bird species diversity (H') (r=0.585, p<0.01). This study would be useful to establish conservation strategies for migratory stopover site of passerine birds.

국문 초록 (Abstract)

본 연구는 2006년 3월부터 2007년 10월까지 조류의 중간기착지인 전남 홍도에서 참새목조류의 서식지 이용 현황을 알아보기 위하여 수행되었다. 연구결과 교목, 관목, 초지, 농경지 등 주요 서식지 유형 중 관목에서 가장 많은 종과 개체수가 관찰되었다. 교목과 관목, 농경지에서의 조류 행동은 서로 다르게 나타났다. 교목에서는 주로 휴식을 취하는 양상이 나타났으며(x2=61.583, df=2, p<0.001), 농경지에서는 취식을 하는 양상이 나타났고(x2=117.339, df=2, p<0.001), 관목에서는 취식의 비율이 가장 낮고 휴식과 기타행동의 비율은 유사하게 나타났다(x2=66.725, df=2, p<0.001). 추계에는 춘계에 비해 교목에서의 관찰 빈도가 증가한 반면 관목, 초지, 농경지에서의 관찰 빈도는 감소하였다. 서식지다양도와 종다양도 간에는 서식지다양도가 높을수록 종다양도도 높은 것으로 나타났다(r=0.585, p<0.01). 본 연구는 참새목 조류의 중간기착지에 대한 보전 전략을 수립시, 기초자료를 제공한다는 점에서 가치를 평가할 수 있다.

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