In the tropical Asian countries of Laos and Thailand, insectivory is a popular practice, and dung beetle eating is a part of this practice. Among them, large dung beetles are dependent on buffalo dung, which is eaten by buffaloes during the dry season when they graze on weeds in rice paddies, which also exist as places where rice is cultivated. These series of practices can be said to form a satochi ecosystem between the rice paddies, the surrounding environment, and the villagers.On the other hand, FAO, a United Nations agency, highly praises entomophagy as a trump card for environmental and food problems. In recent years, however, mechanization of agriculture and the use of anthelmintics have drastically changed the paddy field environment, which is believed to have affected the growth of large dung beetles that inhabit them. In recent years, economic development and modernization of agriculture are said to be changing the lifestyles of villagers, including their insect-eating habits. In this context, we are studying the effects of changes in the paddy field environment on the habitat of macroinvertebrates, the relationship between macroinvertebrate diets and changes in the lifestyle of villagers, and the interrelationship between changes in macroinvertebrate habitat and macroinvertebrate diets among villagers.
