A biotope is a place where wild fauna and flora live, e.g. nearby Satoyama, forests, rivers, grassy areas, the sea and lakes. Postwar urban development, infrastructure improvement, global warming and the increase in abandoned farmland have reduced the size of biotopes, and this has led to a degrading of the ecological network and a decrease in indigenous fauna and flora. The purpose of the biotope activities is to vigorously restore lost biotopes. In Noto, municipalities, communities, NPOs and schools are working to create biotopes in areas such as seashores, rice fields and Satoyama. A biotope in Nagasaki-machi, Nanao City, for example, was created like this. A large pond was made with heavy machinery on abandoned farmland in a mountainous area. When enough rainwater had collected, Japanese killifish and freshwater goby from nearby streams were released into the pond. Since its completion, a lot of aquatic insects have come to live there, and dragonflies visit the area as well.