Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Pattern of Change of the Local Butterfly Community in a Rural Area of Southwestern Part of Korea

전남 서남부 농촌지역에 분포하는 나비군집의 변화 양상에 관한 연구

  • Choi, Sei-Woong (Department of Environmental Education, Mokpo National University) ;
  • An, Jeong-Seop (Division of Climate and Ecology, National Institute of Ecology)
  • 최세웅 (국립목포대학교 환경교육학과) ;
  • 안정섭 (국립생태원 기후생태연구실)
  • Received : 2015.01.02
  • Accepted : 2015.03.14
  • Published : 2015.03.31
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Abstract

We surveyed butterfly community in a rural area of the southwestern part of Korea to investigate the changes of species composition and their abundances between 2001~2002 and 2014. The butterfly survey was conducted at the same site using a line transect method. There was a significant decrease of the numbers of species and individuals between 2001~2002 and 2014. We categorized each species based on six ecological traits: habitat type, habitat breadth, food plant type, food plant breadth, number of generation per year and overwintering stage. The comparison of number of species using these ecological traits showed no difference during the 10-yr time intervals. However, the comparison of number of individuals for the ecological traits showed the significant differences except for one trait, overwintering stage. We could suspect that the decrease of butterflies in the study area was resulted from the habitat change. To investigate the causal factors and the changes of butterfly fauna, we need a long-term monitoring of the local butterfly community.

농촌 논과 밭 경작지 및 야산지역에 분포하는 나비군집 변화가 지난 10년 동안 어떻게 변화했는가를 알아보기 위하여 2001년부터 2002년에 이루어진 자료와 2014년 자료를 비교, 분석하였다. 나비 조사는 선 조사법을 통하여 동일한 지점에서 이루어졌다. 조사 결과 나비의 종 수와 개체수는 10년 전과 비교하였을 때 줄어드는 양상을 나타내었는데 2001년과 2002년에 비하여 2014년에는 종 수와 개체수 모두 감소하였다. 조사지역의 출현 종 수가 그들의 생태학적 특성인 서식지, 서식지 범위, 먹이식물, 먹이식물 범위, 세대수 및 겨울나기 유형 등에 변화가 있는 가를 조사한 결과 종 수는 차이가 나타나지 않았으나 개체수에서는 겨울나기 유형을 제외하고 차이가 있는 것을 확인할 수 있었다. 이 결과는 지난 10년간 지역적으로 나비 군집에 많은 변화가 있었다는 것을 나타내고 있으며 주 원인은 조사지역의 서식지 변화가 주요 요인이었을 것으로 추측한다. 조사 지역에서 나비 군집의 변화를 일으키는 원인을 알기 위해서는 앞으로 지역적 수준에서 종 변화 및 이 변화의 원인을 알기 위해서는 지속적인 모니터링이 필요할 것으로 생각한다.

Keywords

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