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- 저자 : Zaal Kikvidze (검색결과 1 건)
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Sonomi Shibuya,Zaal Kikvidze,Wataru Toki,Yasuto Kanazawa,Tatsuya Suizu,Tamio Yajima,Takahiro Fujimori,Mohammad Reza Mansournia,Zuhair Sule,Kôhei Kubota,Kenji Fukuda 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.4
A Satoyama landscape is an important reservoir of biodiversity; however, in post-industrial era traditionalSatoyama management became economically unfeasible. To maintain Satoyama, labor-saving management styles have begun to be implemented. In contrast to thetraditional styles based on labor-intensive practices such as rotational tree clear-cutting, the labor-saving stylesconsist mainly in tree thinning and ground vegetation cutting within a small spatial range. The consequencesof this newapproach are unclear, and our study aimed at filling this gap in our knowledge by analyzing the effectsofsmall scalemanagement on ground beetle community in suburban Satoyama (Kashiwacity, central Japan).Weapplied labor-savingmanagement at limited spatial range, and sampled and analyzed ground beetles both beforeand after management. Cluster analysis revealed three groups of beetle assemblages, corresponding to threehabitats: forest, bamboo stand and grassland. Comparison of wing traits showed that, before management, brachypterousbeetles dominated forest plots and macropterous beetleswere more prominent in the grassland plot,while in the bamboo stand both types of wing morphology were evenly represented. This trend can be linked tohabitat structural stability driven by vegetation regeneration cycleswhich reflect dominant plant longevity. Aftermanagement, macroptery increased in all three habitats. Probably, habitat disturbance created by vegetationmanagement gave advantage to macropterous beetles over brachypterous beetles. These results suggest thatwing type can be linked to vegetation structural stability. In some species, decline in abundance was accompaniedwith decline in body size. Our study shows that small scale Satoyama management can have pronouncedeffects on beetle assemblages.
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