抄録
In accordance with a most recent report in discipline "landscape genetics", simulation studies to predict spatial genetic variation are urgently required. We evaluated relationships between genetic diversities of caddisfly Hydropsyche orientalis and species diversity calculated from Habitat Suitability Index (HSI) of aquatic animals and discussed outliers in the correlation diagrams in the Natori River basin located at the middle of Miyagi prefecture. Omitting two significant outliers, we developed spatial genetic diversity distribution maps on the basis of linear regression models in the correlation diagrams. At the catchment scale, the longitudinal distribution of genetic diversity had high peak in the middle stream. The result is identical with the observed pattern of genetic diversity for the species. The prediction has advantages which can be applied to future planning in respect of dam removal, urban planning, and zoning in view of genetic diversity.
