Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Distribution of Southern Earthworm Race in Mulberry Tree Cultivation Area

뽕나무 경작지의 남방계지렁이 분포

  • Hong, Yong (Department of Agricultural Biology, College of Agriculture & Life Science, Chonbuk National University)
  • 홍용 (전북대학교 농업생명과학대학 농생물학과)
  • Received : 2014.05.19
  • Accepted : 2014.08.18
  • Published : 2014.09.30
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Abstract

In this study, I investigated the species composition in the Mulberry tree cultivation area from April 2013 to March 2014 at Busan. Five genera and nine species found are as follows: Aporrectodea caliginosa (Savigny, 1826), Bimastos parvus (Eisen, 1874), Eisenia fetida (Savigny, 1826), Drawida japonica (Michaelsen, 1892), Amynthas heteropodus (Goto&Hatai, 1898), Amynthas agrestis (Goto & Hatai, 1899), Amynthas corticis (Kinberg, 1867), Amynthas hilgendorfi (Michaelsen, 1895), and Amynthas sp. A total of 317 individuals of Aporrectodea caliginosa (Savigny, 1826) was collected. Ap. caligionosa and A. heteropodus were found to be the most dominant species during the study period. Interestingly, the maximum population density of Ap. caligionosa was recorded to be in the month of October. Further details analysis indicated that, its population increased rapidly during the breeding season between summer and autumn and thereafter gradually decreased through winter toward the following February. Three growth stages of Ap. caligionosa occurred almost simultaneously with abundance composition of 76% in aclitellum, 12.6% in semiclitellum, and 11.4% in clitellum. Based on my study results, I suggest that this data could be useful for the scientific community to analyze the distribution of southern earthworm species in mulberry tree cultivation area.

농생태계의 뽕나무 경작지에서 서식하고 있는 지렁이상을 확인하기 위하여, 2013년 4월부터 2014년 3월까지 조사를 하였다. 분류된 남방계지렁이는 총 5속 9종으로 다음과 같다. Aporrectodea caliginosa (Savigny, 1826), Bimastos parvus (Eisen, 1874), Eisenia fetida (Savigny, 1826), Drawida japonica (Michaelsen, 1892), Amynthas heteropodus (Goto & Hatai, 1898), Amynthas agrestis (Goto & Hatai, 1899), Amynthas corticis (Kinberg, 1867), Amynthas hilgendorfi (Michaelsen, 1895), Amynthas sp. 등이다. 장미줄지렁이 (Ap. caliginosa) 개체군 밀도 소장은 10월에 정점을 보이고 다음해 2월까지 감소하고, 성체와 미성체는 동시에 출현하며, 그들의 조성 비율은 성체 11.4%, 준성체 12.6 11%, 미성체 76% 이었다.

Keywords

References

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