The Ecology of Sumatra has brought together nearly 1,500 references relevant to understanding the components and functions of a wide range of natural and man-made ecosystems on Sumatra. It was originally written in 1983 by a team at the Centre for Resource and Environmental Studies at the University of North Sumatra. This new version includes a commentary on the last 15 years of development on Sumatra as well as an additional bibliography of recent publications.