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Shigeki Kishi,Nasa Sakura,Tetsuro Yoshikawa,Masayoshi K. Hiraiwa,Kazuhiro Katoh 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.3
In habitats after natural disturbance, mutualistic interaction between plant and flower-visiting insects is critical for maintenance and recovery of communities. However, the detailed characteristics of the plant-insect interactions that occur after a natural disturbance remain to be identified. We investigated the network structure of these interactions on the oceanic and volcanic island of Miyake, Japan. Large vegetated areas of this island were disturbed by a massive volcanic eruption during 2000. In 2012, we sampled insects visiting the flowering plants along the roadsides bordering six sites in the 3 vegetation types, which represent the island's vegetation after the volcanic disturbance; (1) shrubland colonizing accumulated ash (SL), (2) mature broad-leaved forests with partial damage (BF), and (3) coastal vegetation with partial damage (CV). Network properties, such as specialization, nestedness, and modularity did not differ among the three vegetation categories. We found the same specialized, modular, and anti-nested structures in five networks. The largest variation in insect/plant assemblages was observed between CV and the other vegetation types, but we did not find distinctive variations between SL and BF sites. Our study suggests that network structure is constant in the varying vegetation types, and raises the possibility that this island's mutualistic interactions are robust to volcanic disturbance.
학교 환경교육을 위한 하천 수질 컴퓨터 시뮬레이션 프로그램 SimRiver의 활용
이정호(Jung Ho Lee),정철(Cheol Cheong),권난주(Nan Joo Kwon),김영주(Young Ju Kim),박혜경(Hye Gyeong Park),Shigeki Mayama,Kazuhiro Katoh,Hiroshi Ohmori 한국환경교육학회 2011 環境 敎育 Vol.24 No.1
SimRiver, computer simulation software for assessment of river water quality is an educational simulation software created for studying the relationship between human activity and river environment using epilithic diatom communities. The SimRiver program was applied to total seventy eight teachers of elementary, middle and high schools in Korea, and the teachers' reactions were analyzed with the questionnaire survey. Total 79.2% of the teachers estimated the possibility of SimRiver to be applied as a educational material in lessons is high. Especially total 93.6% of the teachers answered that they will use SimRiver in their lessons. The results of the questionnaire survey indicate that SimRiver is an interesting and easy simulator of alternative field exercise for students to understand the relationship between human activity and quality of river water.