BIOTROPIA, the Southeast Asian Journal of Tropical Biology is a scientific publication of SEAMEO BIOTROP. It publishes articles in the broad areas of tropical ecosystems and environmental impacts, biodiversity conservation and sustainable development, environmental and forest biotechnology, covering all aspects of the discipline of biology. Articles published in the journal are papers reporting results of original researches, reviews on spesific topics not available elsewhere in up-to-date form, and short communication in which advances in knowledge of significance are briefly announced.