Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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The Earthworm Composition in Agroecosystem of Sunyu Island, Korea

선유도 농생태계 지렁이상

  • Hong, Yong (Department of Agricultural Biology, College of Agriculture & Life Science, Chonbuk National University) ;
  • Kim, Tae-Heung (Department of Agricultural Biology, College of Agriculture & Life Science, Chonbuk National University)
  • 홍용 (전북대학교 생물자원과학부) ;
  • 김태흥 (전북대학교 생물자원과학부)
  • 투고 : 2008.04.22
  • 심사 : 2009.03.03
  • 발행 : 2009.05.31
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초록

The abundance of earthworm in the agroecosystem of Sunyu Island was estimated on the basis of 1,025 individuals collected in August and October, 2007. Material were collected from litter layers and soils by hand sorting and digging. They encompassed 12 species, 4 genera, and 3 families. Species composition and abundance were as follows: Amynthas heteropodus 29.7%, Aporrectodea tuberculata 22.6%, Aporrectodea caliginosa 19.5%, Drawida japonica 11.3%, Amynthasagrestis 5.0%, Amynthas hupeiensis 3.6%, Aporrectodea sp. 3.5%, Amynthas corticis 2.0%, Bimastos parvus 1.6%, Amynthas koreanus 0.8%, Amynthas hilgendorfi 0.2%, and Amynthas sp. 0.2%. Of 537 individuals, A. heteropodus, and A. tuberculata were the most numerous members with abundance of 52.4%. The clitellate vs. aclitellate ratio of the earthworm was approximately 1:1.1.

2007년 8월과 10월 동안 서해안 선유도의 농생태계 작물재배지역 15지점에서 조사 채집된 지렁이는 3과 4속 12종 1,025개체이며 종 구성은 다음과 같다. Amynthas heteropodus 29.7%, Aporrectodea tuberculata 22.6%, Aporrectodea caliginosa 19.5%, Drawida japonica 11.3%, Amynthas agrestis 5.0%, Amynthas hupeiensis 3.6%, Aporrectodea sp. 3.5%, Amynthas corticis 2.0%, Bimastos parvus 1.6%, Amynthas koreanus 0.8%, Amynthas hilgendorfi 0.2%, Amynthas sp. 0.2%이다. 종 조성 비율을 보면 A. heteropodus와 A. tuberculata 2종이 차지하는 개체수는 537개체로 전체의 52.4%를 차지하여 선유도 농생태계 작물재배지의 우점종이다. 미성숙개체와 성숙개체의 비율은 1.1:1로 미성숙개체가 조금 더 많이 채집되었다.

키워드

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