Professor William Laurance is a world-leading conservation ecologist of tropical forests and their biodiversity. His research spans the tropical world, from Australia to the Amazon, Africa and Asia-Pacific region. He has made a remarkable array of important scientific findings concerning the impacts of habitat fragmentation, logging, fires, climate change and exotic pathogens on tropical ecosystems, while working actively to educate the general public and promote wise conservation policies. William is one of the most active and influential environmental biologists working in the tropics today.