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천승필,전승훈,이승오,임장혁,이우경,김명철 한국환경생태학회 2015 한국환경생태학회지 Vol.29 No.2
Stream ecosystems are closely related to many human activities. Therefore, streams are affected by anthropogenic disturbances such as riverine development and gravel-mining as well as deterioration of water quality. The goal of this study was to elucidate the recolonization process of the macroinvertebrate community after a small-scale anthropogenic disturbance. Field studies were conducted at three sites in a natural stream. The number of recolonizing species tended to increase slightly over time, exceeding the total species number of the control. Ephemeroptera contributed the most to shaping the recolonizing pattern of the entire community. From the result of changes in dominant species, the early recolonizers of each site were the species that showed more frequent occurrence particulary at each sites. But the late recolonizers are Chironomidae at all the sites commonly. This result implies that the actual differences exist among the recolonizing trends of each benthic macroinvertebrate taxon. Collector-gatherers and scrapers comprised about 70% of the recolonizing species. These results indicate that the recolonizing process of an aquatic community after an artificial disturbance depends on the environmental conditions(particularly substratum composition or organic pollution) of the habitat.
천승필,전영철,김홍근,이우균,김명철,전승훈,정성은 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.2
Understanding the relationships between environmental factors and aquatic communities at the large scale is important for conserving freshwater biodiversity and sustaining ecological integrity. In this study, we evaluated the ecological status of the Han River watershed in Korea with the predictive distributionmaps for EPT (Ephemeroptera, Plecoptera, and Trichoptera) taxa. From large-scale surveys, environmental and biological data for 360 sites in 189 streams and rivers in the Han Riverwatershed in 2012 and 2013were analyzed. Based on correlation analysis and stepwise multiple regression analysis, the factors influencing EPT richness were altitude, percent of coarse substrate, biochemical oxygen demand (BOD), and total phosphorus (TP). DPI (distribution prediction index), indicating the distribution probability of EPT assemblages, was calculated by using a frequency ratio model. This index was high in the mountainous area where altitude and percent of coarse substrate were high, but low in the urbanized area where BOD and TP were high. Verification of the model indicated high reliability of DPIs as demonstrated by the lowroot-mean-square-error (RMSE) values between the predicted and observed values. This study provides a basis for the sustainablemanagement of streamecosystems aswell as paves theway for future studies such as those on environmental assessment techniques using aquatic insect communities.
산업곤충 위해성 평가를 위한 격리수용시설 기준안에 대한 고찰
김명철,천승필,이존국 한국응용곤충학회 2012 한국응용곤충학회 학술대회논문집 Vol.2012 No.10
산업곤충의 도입 및 관리체계에 있어 사전예방적 조치가 비용효과적임에도 불구하고 차단격리 시설의 미비 등 이들 외래 유해 곤충종들의 유입을 효과적으로 예방하는 체제를 갖추지 못하고 있는 실정이다. 현재 우리나라는 산업곤충의 정확한 범주에 따른 관리시설의 설치규정안과 그에 따른 설치시설이 전무함에 따라 ACLs과 같은 외국의 절지동물 격리시설의 기준안과 우리의 연구시설 등을 포함한 격리 시설에 적용 가능한 기준안을 검토해 보았다. 1차적으로 산업곤충의 유형을 특성에 맞게 구분해 보았으며 유형에 따른 설치안과 더불어 시설설치 기준안에 필요한 구성요소들을 살펴보았다. 또한, 주로 실험동물을 대상으로 한 LMO 연구시설의 설치 및 운영 세부항목들을 포함하여 금번 연구 분석 자료를 바탕으로 위해성 곤충류의 격리에 필요한 시설의 설치와 운영기준을 고찰해보고자 하였다.
제주도 일대 습지에 서식하는 저서성 대형무척추동물의 군집 분포 특성
전영철,천승필,강미숙,박재홍,이창수,권순직 한국하천호수학회 2024 생태와 환경 Vol.57 No.1
Most wetlands worldwide have suffered from extensive human exploitation. Unfortunately they have been less explored compared to river and lake ecosystems despite their ecological importance and economic values. This is the same case in Korea. This study was aimed to estimate the assemblage attributes and distribution characteristics of benthic macroinvertebrates for fifty wetlands distributed throughout subtropical Jeju Island in 2021. A total of 133 taxa were identified during survey periods belonging to 53 families, 19 orders, 5 classes and 3 phyla. Taxa richness ranged from 4 to 31 taxa per wetland with an average of 17.5 taxa. Taxa richness and abundance of predatory insect groups such as Odonata, Hemiptera and Coleoptera respectively accounted for 67.7% and 68.2% of the total. Among them Coleoptera were the most diverse and abundant. Taxa richness and abundance did not significantly differ from each wetland type classified in accordance with the National Wetland Classification System. There were three endangered species (Clithon retropictum, Lethocerus deyrolli and Cybister (Cybister) chinensis) and several restrictively distributed species only in Jeju Island. Cluster analysis based on the similarity in the benthic macroinvertebrate composition largely classified 50 wetlands into two major clusters: small wetlands located in lowland areas and medium-sized wetlands in middle mountainous regions. All cluster groups displayed significant differences in wetland area, long axis, percentage of fine particles and macrophyte composition ratio. Indicator Species Analysis selected 19 important indicators with the highest indicator value of Ceriagrion melanurum at 63%, followed by Noterus japonicus (59%) and Polypylis hemisphaerula (58%). Our results are expected to provide fundamental information on the biodiversity and habitat environments for benthic macroinvertebrates in wetland ecosystems, consequently helping to establish conservation and restoration plans for small wetlands relatively vulnerable to human disturbance.