Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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Functional Feeding Group Categorization of Korean Immature Aquatic Insects and Community Stability Analysis

한국산 수서곤충류 섭식기능군 유형 및 군집 안정성 분석

  • 전동준 (고려대학교 한국곤충연구소) ;
  • 노태호 (한국환경정책 평가연구원)
  • Published : 2004.06.30
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Abstract

Based on the Merritt-Cummins system, the Korean immature aquatic and semiaquatic insects were reviewed and categorized into 6 different functional feeding groups (FFG) at the generic levels (257 genera belonging to 96 families, 10 orders),Among 257 genera, the most abundant FFG was the predator type consisting of 122(47%) genera. The second and third major groups were gathering-collectors (33genera, 13%) and shredders (21, 8%), respectively. Next group was occupied by scrapers (20,7%), and followed by filtering-collectors (12,5%) and plant-piercers (6, 2%). In addition, a total of 43 genera in 7 orders were remained as uncategorized groups. Both relative degrees of resistance and resilience of each genus were also analyzed to evaluate the role of each FFG in maintaining community stability. The results elucidated that the gathering-collectors and the scrapers could play a role as a pioneer group and a functional mediator in the community, respectively. The results also indicated that the practical use of relative resistance and resilience degrees could be applied to conduct comprehensive studies in stream ecosystems.

Merritt-Cummins의 체계에 기초하여 한국에 정리 ${\cdot}$ 보고된 수서곤충류(10목 96과 257속)를 6개 섭식기능군 유형의 분석과 검증을 실시하였다. 총 257개 속 가운데포식자인 섭식기능군이 122개 (47%)속으로 가장 많았으며, 두 번째와 세 번째로 높은 점유율을 나타낸 섭식기능군은 gathering-collectors(33개 속, 13%)와 shredders(21개 속,8%)로 나타났다. 그 다음으로는 Scrapers가 20개 (7%) 속으로 나타났으며, filtering-collectors (12개 속,5%)와 plant-piercers(6개 속, 2%)의 순으로 나타났다. 그러나 7개 목의 총 43개 속에 해당하는 분류군은 섭식기능군이 밝혀지지 않았다. 생물군집의 안정성을 유지하는데 있어 섭식기능군의 기능을 규명하기 위하여 속 수준에서의 상대적 저항력과 회복력이 분석되었다. 그 결과 섭식기능군 gathering-collectors와 scrapers는 군집 내에서 각각 개척자와 기능적 중간자로서의 역할을 수행하고 있음이 규명되었다. 상대적 저항력과 회복력의 등급화의 실질적은 적용은 하천생태계에 대한 포괄적인 연구의 수행에 높은 응용성을 지니는 것으로 분석되었다.

Keywords

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