Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Distribution Characteristics of Water Scavenger Beetles (Hydrophilidae) in Korean Paddy Field

논 서식 물땡땡이과의 분포 특성

  • Han, Min-Su (Climate Change and Agroecology Division, National Academy of Agricultural Science, RDA) ;
  • Bang, Hea-Son (Climate Change and Agroecology Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Myung-Hyun (Climate Change and Agroecology Division, National Academy of Agricultural Science, RDA) ;
  • Kang, Kee-Kyung (Climate Change and Agroecology Division, National Academy of Agricultural Science, RDA) ;
  • Jung, Myung-Pyo (Climate Change and Agroecology Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Deog-Bae (Climate Change and Agroecology Division, National Academy of Agricultural Science, RDA)
  • 한민수 (국립농업과학원 기후변화생태과) ;
  • 방혜선 (국립농업과학원 기후변화생태과) ;
  • 김명현 (국립농업과학원 기후변화생태과) ;
  • 강기경 (국립농업과학원 기후변화생태과) ;
  • 정명표 (국립농업과학원 기후변화생태과) ;
  • 이덕배 (국립농업과학원 기후변화생태과)
  • Received : 2010.10.19
  • Accepted : 2010.12.13
  • Published : 2010.12.30
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Abstract

Aquatic invertebrates are the major important fauna to sustain the paddy ecosystem as predators of the lower trophic level and prey for birds in food-web dynamics as well. The nationwide distribution of scavenger beetles (Hydrophilidae) that is the top predator in an aquatic insect in the paddy field was investigated. A total of 15 scavenger beetles were recognized. Enochrus simulans (98.6%) and Laccobius bedeli (87.7%) showed a high frequency of occurrence on a nationwide scale. The majority of scavenger beetles were higher frequency of occurrence in mountainous regions(33.7%) than in open field regions(5.0%). On the other hand, E. uniformis, Coelostoma stultum and Berosus japonicus showed a low occurrence frequency. Hydrochara affinis, Sternolophus rufipes, Amphiops mater, B. elongatulus, B. signaticollis punctipennis, B. lewisius and H. libera showed regional specific distribution aspect. Therefore, these species can be used as biological index to research the biotic changes in paddy ecology according to an agro-environmental changes including climatic change in the future.

논을 포함한 주변의 일시적 또는 연속적인 정수지를 가지는 논생태계는 다양한 수서생물의 서식처를 제공함으로서 국가 생물다양성 확보를 위한 중요한 역할을 하고 있다. 하지만, 최근 수로정비, 경지정리 등에 의해서 서식환경에 변화가 일어나고 있으며, 앞으로도 계속적으로 일어날 것이다. 따라서, 본 연구에서는 논생태계 내에 출현하는 수서곤충 중에서 상위 포식자 역할을 하고 있는 물땡땡이류의 전국 분포 조사를 하였다. 그 결과 논 내에서 총 15종의 물땡땡이류가 확인되었다. 그중 전국적으로 애넓적물땡땡이(98.6%)와 점물땡땡이(87.7%)가 높은 출현빈도를 나타냈다. 대부분의 물땡땡이류는 경지정리가 이루어진 들에 위치한 논(33.7%)보다는 곡간에 위치한 논(5.0%)에서 출현빈도가 높았다. 한일넓적물땡땡이(1.4%), 등볼록물땡땡이(2.9%) 및 새가슴물땡땡이(4.3%) 3종은 곡간과 들 모든 지역에서 낮은 출현빈도를 보였다. 잔물땡땡이, 애물땡땡이, 알물땡땡이, Berosus elongatulus, 점박이물땡땡이, 뒷가시물땡땡이 및 북방물땡땡이 7종은 지역 특이적 분포 특성을 나타냈다. 이러한 종들은 향후 기후변화를 포함한 농업환경변화에 따른 논생태계 생물의 변화를 연구함에 있어서 좋은 지표로 활용될 수 있을 것으로 판단된다.

Keywords

References

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