한국환경생태학회지 (Korean Journal of Environment and Ecology)

  • 제38권3호
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  • Pages.324-337
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  • 2024
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  • 1229-3857(pISSN)
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  • 2288-131X(eISSN)
한국환경생태학회 (Korean Society of Environment and Ecology)
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미소서식처 유형별 지각류 (Cladocerans)의 분포 특성

Spatial Distribution Pattern of Cladoceran Community in Accordance with Microhabitat Types

  • 최종윤 (부경대학교 지속가능공학부 생태공학전공)
  • 투고 : 2023.11.29
  • 심사 : 2024.05.15
  • 발행 : 2024.06.30
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초록

수생식물은 지각류의 종다양성과 풍부도를 결정하는 중요한 요인이지만, 식물의 종구성이나 구조에 대한 지각류의 영향은 충분하게 고려되지 않았다. 남한은 수생식물이 피복되기 쉬운 습지나 저수지가 전국에 산재하고 있기 때문에 지각류를 포함한 생물 연구 시 수생식물에 대한 고려가 필요하다. 본 연구에서는 6가지 유형의 미소서식처에서 지각류 군집의 종수와 풍부도를 조사하고, 이 결과를 기반으로 서식처 보전과 효율적인 관리에 대해 고찰하고 한다. 지각류 군집의 높은 종수와 풍부도는 부유식물, 부엽식물, 그리고 침수식물이 함께 구성된 혼합된 식물 군락에서 목격되었다. 식물 군락에서 침수식물의 포함은 서식처 구조의 복잡성에 크게 기여하며, 지각류 군집의 종수와 풍부도를 증가시킬 수 있다. 이는 침수식물이 부재한 부유 및 부엽식물로만 구성된 식물 군락과 비교함으로서 침수식물의 효율성을 파악할 수 있다. 혼합된 식물 군락에서는 다른 식물 군락에 부재하는 지각류 종 (Graptoleveris testudinaria, Ilyocryptus spinifer, Leydigia acanthocercoides)이 출현함으로서 종다양성이 가장 높았다. 혼합된 식물 군락에서 침수식물의 점차적인 생물량 (g) 증가는 지각류 군집의 종수와 풍부도를 유의하게 증가시켰다 (p<0.05). 이는 혼합된 식물 군락에서 침수식물의 증가가 지각류의 서식처로서 효율성에 긍정적인 영향을 미친다는 강력한 증거이다. 비록 침수식물은 수중에 침수되어 서식하기 때문에 경관적/미적인 가치에 크게 기여하지 않지만, 생물학적 측면에서 종다양성을 증가시키는 효과를 가지기 때문에 습지 창출/복원 시 중요하게 고려되어야 할 것으로 판단된다.

Aquatic macrophytes are important factors in determining species diversity and abundance of cladocerans, but the effects of cladocerans on plant species composition or structure have not been fully considered. In South Korea, wetlands and reservoirs that are prone to covering aquatic macrophytes are scattered across the country, so it is necessary to consider on aquatic macrophytes study, when aquatic animals including cladoceran were studied. in this study, the species and abundance of cladocerans community in six microhabitat types are investigated, and based on these results, habitat conservation and efficient management are suggested. The high species numbers and abundance of cladocerans communities were found in mixed plant communities consisting of free-floating, floating-leaved, and submerged plants. The inclusion of submerged plants in plant communities contributes significantly to the complexity of habitat structures, and may increase species and abundance of cladocenran communities. This can be compared to a plant community consisting only of free-floating and floating-leaved plants in the absence of submerged plants, thereby identifying the efficiency of submerged plants. In the mixed plant communities, species diversity was the highest due to the emergence of cladoceran species (Graptoleveris testudinaria, Ilyocryptus spinifer, and Leydigia acanthococcides) absent from other plant communities. The gradual increase in the biomass (g) of submerged plants in the mixed plant communities significantly increased the species numbers and abundance of cladoceran communities (p<0.05). This is strong evidence that the increase of submerged plants in mixed plant communities has a positive effect on efficiency as a habitat for cladocerans. Although submeged plants do not contribute significantly to their landscape/aesthetic value because they are submerged in water, they have the effect of increasing species diversity in terms of biology, so they should be considered important when creating/restoring wetlands.

키워드

과제정보

이 논문은 2023학년도 부경대학교의 지원을 받아 수행된 연구임(202303880001, 미소서식처 유형별 지각류 분포 및 종조성 파악).

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