Analysis and Prediction for Spatial Distribution of Functional Feeding Groups of Aquatic Insects in the Geum River

摘要: The aim of this study is to define a correlation between spatial distribution characteristics FFG(Functional Feeding Groups) aquatic insects and related environmental factors in the Geum River based on theory RCC(River Continuum Concept). For that objective we had used SMRA(Stepwise Multiple Regression Analysis) method analyze close relationship physical chemical may affect their inhabiting environment area. And then, probabilistic named Frequency Ratio Model(FRM) analysis function GIS were applied produce predictive map biota community considering according as variables. As result SMRA, values decision coefficient for elevation, stream width, flow velocity, conductivity, temperature percentage sand showed higher than 0.5. Therefore these 6 considered major might insects. Finally, calculated RMSE(Root Mean Square Error) predicted prior survey database from other researches verify study. RMSE 0.1892 0.4242 each FFG so could find out high reliability results be develop new estimation ecosystem with macro invertebrate also preliminary data conservation restoration habitats.