His recent work concerns food-web dynamics and energy flow in streams, the relationship between biodiversity and ecosystem functioning, and the broader issue of freshwater biodiversity conservation in a rapidly-changing, human-dominated world.
Dudgeon is the author of over 170 papers in international journals, as well as book chapters, books and other articles (see Publication List). He has supervised more than 30 research postgraduate students. In 2000, Dudgeon was awarded the 10th Biwako Prize in Ecology in recognition of his contributions to freshwater ecology and conservation in Asia. He is currently writing a book to entitled Freshwater Biodiversity Conservation for Cambridge University Press.
In 2015, Dudgeon took on the role of Editor-in-Chief of Freshwater Biology.
Dudgeon is a member of the editorial boards of Aquatic Conservation and Global Ecology and Conservation, and was formerly associated with the editorial boards of Hydrobiologia, Aquatic Sciences, Inland Waters and Biotropica. Dudgeon has served on the Freshwater Cross-cutting Network of DIVERSITAS, and sits on the Scientific Steering committee of the Global Water System Project (GWSP) and the Freshwater Working Group of GEO-BON, the Global Biodiversity Observation Network. These organizations were all members of the Earth Systems Science Partnership, which was recently incorporated into the Future Earth research platform.
Dudgeon is an Executive Councilor and Trustee of WWF-Hong Kong and a member of the Steering Committee developing the Hong Kong Biodiversity Strategy and Action Plan as part of the territory’s obligations under the international Convention on Biological Diversity. He served for six years on the Town Planning Board of Hong Kong SAR Government (until 2010), was Associate Dean (Research) of the HKU Science Faculty between 2010 and 2014, and is currently University Mace Bearer.