河川空間の物理的撹乱への応答特性を考慮した水生毘虫群集の新しい生態型区分

抄録

Disturbance strategy type is proposed as a novel classification method of stream invertebrate related to the response characteristics to physical disturbance. This classification consists of 7 types based on the morphological characteristics of insect body and locomotion. Two viewpoints, resistance ability for disturbance and movement ability for evacuating refuge as resilience are used for constructing the classification. All types are related Family level of phylogenetic systematics. This classification is applied to some field survey data consists of various disturbance conditions. In spite of the easiness of identification of the disturbance tolerance type, different resilience characteristics can be estimated by using the classification system. Therefore with sufficiently attention to the limitation of the classification system, this is useful tool for ecohydraulics research and river managements.