Cang Hui is a Professor of Mathematical Biology and the South African Research Chair in Mathematical and Theoretical Physical Biosciences based at Stellenbosch University and the African Institute for Mathematical Sciences in South Africa. His research focuses on developing models and theories for explaining emerging patterns of biodiversity, networks, and traits in ecology and evolution. Biological invasions provide a model ... Read moresystem for his research. Hui has published more than 100 papers and received the Elsevier Young Scientist Award in 2011. He is a core-team member of the DST-NRF Centre of Excellence for Invasion Biology and is on the editorial board of several journals, including Biological Invasions, BMC Ecology, Ecological Complexity, and Frontiers in Ecology and Evolution. David M. Richardson is Distinguished Professor of Ecology and the Director of the DST-NRF Centre of Excellence for Invasion Biology, based at Stellenbosch University, South Africa. His research focuses mainly on plant invasions, especially trees and shrubs. He is interested in the biogeography, ecology and management of invasions and in conservation biogeography in general. Richardson has published more than 350 papers, edited or co-edited 6 books and has received several awards, including the Hans Sigrist Prize in 2006 and the 2013 John F.W. Herschel Medal from the Royal Society of South Africa. He served as Editor-in-Chief of the journal Diversity and Distributions between 1998 and 2015 and is Associate Editor of several other journals, including Biological Invasions and Neobiota. Show Less