| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
|---|
| Outline of Final Research Achievements |
We computed hydraulic and thermal variables in river using a distributed hydrological-thermal model which has been developed in the Natori River catchment, Japan. These variables were subsequently used as explanatory variables to predict habitat suitability of 41 stream invertebrate taxa. We applied the habitat suitability models to estimate stream health metrics; taxon richness, species diversity, average score per taxon, benthic-index of biotic integrity (B-IBI) throughout the study catchment. We defined taxon-specific cutoff values to determine presence/absence of the focal taxon by habitat suitability values, and used this to calculate the taxon richness. The predicted taxon richness displayed significant positive correlation (P<0.05) with the observed taxon richness of stream invertebrates, suggesting usefulness of this predictive model of species diversity.
|
