Application of the Carabid Beetles as Ecological Indicator Species for Wetland Characterization and Monitoring in Busan and Gyeongsangnam-do

습지지표종으로서 딱정벌레류를 이용한 부산, 경남 주요 습지의 특성 및 변화 관찰

  • Do, Yu-Do (Department of Biology, Pusan National Univ.) ;
  • Moon, Tae-Young (Division of Biological Sciences, Kosin Univ.) ;
  • Joo, Gea-Jae (Department of Biology, Pusan National Univ.)
  • Published : 2007.03.30

Abstract

Investigation of carabid beetles as on ecological indicator species for wetland characterization and monitoring was conducted in three types of wetlands such as emergent wetland, forested wetland, and estuary, During the investigation period, twenty-eight species belonging to twenty-two genera and three families(Carabidae, Harpalidae, Brachinidae) were identified. The diversity of carabid beetles at riverine wetland such as Woopo (H'=1.18) and Hwapo-neup (H'=1.08) were higher than in the forested wetland (H'=1.03) and estuarine (H'=0.91). Species compositions in each wetland were significantly different(${\chi}^2=1716.8$, P<0.01). Riverine wetlands differed significantly from the forested wetland. Indicator species for the wetland chose with indicator species analysis were reacted sensitively on the parameter such as soil composition, moisture of soil, and environmental change. Thus, it was consequently suggested that these indicator species may be applied for wetland characterization and monitoring of the wetland ecosystem.

습지의 서식지 특성 및 환경 지표종을 찾기 위해 부산과 경남에 위치한 습지 유형이 다른 하천습지, 산지습지, 하구습지에서 딱정벌레류를 조사하였다. 조사결과 딱정벌레과, 먼지벌레과, 폭탄먼지벌레과에 속한 22속 28종이 채집되었고, 종 다양성은 하천습지(우포늪, 화포늪), 산지늪(재약산늪), 하구습지(낙동강하구) 순으로 나타났다. 딱정벌레류의 종조성은 각 습지에서 독립적으로 나타났는데(${\chi}^2=1716.8$, P<0.01), 하천습지와 산지늪이 가장 다른 종조성을 보였다. 지표종 분석을 통해 각 유형의 습지를 대표하는 $2{\sim}6$종의 딱정벌레류를 지표종으로 선출하였는데, 지표종들은 토성과 토양습도, 인위적 환경변화에 대해 민감하게 반응하여 습지환경변화를 모니터링할 수 있는 것으로 보인다. 추후 생활사나 먹이특성 등딱정벌레류의 각종별로 자세한생태적 특성이 연구되면 지표종으로 딱정벌레류를 일반화하여 여러 서식지에서 활용할 수 있을 것으로 보인다.

Keywords

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