IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 4 - HYDRO-ENVIRONMENT : Relationsip between Aquatic Insects Habitats and Envieonmental Factors Using Hydrological Simulation...
Relationsip between Aquatic Insects Habitats and Envieonmental Factors Using Hydrological Simulation Model
Author : Akihiko TAKASE, Kei NUKAZAWA, So KAZAMA and Kozo WATANABE
We evaluated spatial variations of habitat suitability of nine aquatic insects in the Natori River basin, Northeast Japan quantitatively combining dual approaches of using Habitat Suitability Index (HSI) model analysis and hydrothermal simulation model. We also developed a new index of the Weighted Usable Ratio (WUR) for evaluating the overall habitat suitability throughout the catchment for each species. The results of spatial distributions of HSI showed species-specific patterns such as wide distribution of digit grids with high HSI throughout the catchment in habitat generalists (for example, Baetis, WUR=0.55) while the constrained distribution in habitat specialists (for example, Limnocentropus insolitus, WUR=0.06). Overall, the spatial variation of HSI showed good consistency with the empirical habitat distributions, supporting the accuracy of our model approach.
File Size : 474,543 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 4 - HYDRO-ENVIRONMENT
Date Published : 18/07/2016
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