Dr. Yayoi Takeuchi is a field ecologist, and has conducted studies on biodiversity and ecosystem services in tropical forests in Peninsular Malaysia and Borneo, where are biodiversity hotspots in the world. Especially she is interested in the mechanisms to maintain high species diversity in biological communities in tropical forests. The project in which she is currently engaged in Pasoh Forest Reserve in Malaysia aims to link high species diversity to complex canopy structure of tropical forests by using cutting-edge technologies such as drones and photogrammetry.