Abstract
Habitat management for biodiversity conservation is impossible without cooperation of local society. Thus, we examined an incentive for habitat conservation of local society in Yakushima Island. At first, we constructed a structualmodel of their consciousness for habitat conservation as a hypothesis by using ISM (Interpretive Structural Modeling), and conducted an attitude survey on the basis on it. Secondarily, we cleared discrimination factors between positive group and negative group for habitat conservation by quantification second theory. Finally. we integrated 11 items to a function by quantification first theory. In conclusion. it was suggested that recognition factors are more important than experiment factors as the incentive for habitat conservation.