2017 年 5 巻 2 号 p. 17-23
Crop damage by wildlife is a worldwide concern, and countermeasures against the damage have been developed. However, techniques against damage have not effectively decreased crop damage. One reason for this problem is that the new techniques have not always been used. In this study, Rogers' model (innovation diffusion model) was used to reveal the factors restricting the spread of new knowledge to decrease damage. Rogers' model suggested that knowledge about a technique leads to positive feelings and satisfaction, and that positive feelings promote innovation. In this study, a simple electric fence was targeted as a technical innovation, and the aim was to reveal factors limiting diffusion of this innovation. The results showed that Rogers' model was applicable only to the group that attended a lecture, and that the model could not be adapted without a lecture. Therefore, wildlife managers should provide information directly, as indirect methods, such as mass communication media and advertisements, were inefficient. Incorrect use of the electric fence occurred frequently; therefore, the main reason for providing information directly was to reduce incorrect usage of the technique.