This project aims to establish basic methods to monitor and assess bird diversity in human-modified landscape such as large-scale plantations and selective logging forest. The main research field is located in Indonesia and Malaysia, and I have for sites; South Sumatra, Riau, Central Kalimantan, and Sabah. I set IC recorders in the field for several months and analyze bird song to evaluate bird species diversity.

To utilize swiftlet nests (known as “bird nest”) sustainably, we should know the ecology of birds. Among all, the differences of diet, distances to the feeding ground, surrounding landuse is important factors which directly affect nest production rate. The main research field is Sarawak, Malaysia and Riau, Indonesia.

Phosphorus is one of the factors that will affect ecosystem production and community. In Mt.Kinabalu, Malaysia, they have phosphorus-poor soil and phosphorus is lost when rain washes the soil surface out. The research theme is to clarify the role of birds to redistribute phosphorus inside forest ecosystem.