My work aims to describe patterns of species distribution across tropical Africa and uncover the evolutionary and ecological processes that created and maintain them. I use biogeographic, ecological, phylogenetic and taxonomic methods to do this. I have a particular interest in the tropical west African forest flora, where I have done most of my fieldwork. I am also interested in the ways people use plants, and have conducted surveys of local plant use in several African countries.
C. A. M. Marshall, J. J. Wieringa & W. D. Hawthorne (2016). Bioquality hotspots in the tropical African flora. Current Biology 26: 3214–3219
W. D. Hawthorne, S. Cable & C. A. M. Marshall (2014). Empirical trials of plant field guides. Conservation Biology 28, 654-662.
C. A. M. Marshall & W. D. Hawthorne (2012). Regeneration ecology of the useful flora of the Putu Range rainforest, Liberia. Economic Botany 66, 398-412.
W. D. Hawthorne, D. Sheil, V. K. Agyeman, M. Abu Juam & C. A. M. Marshall (2012). Logging scars in Ghanaian high forest: Towards improved models for sustainable production. Forest Ecology and Management 271, 27-36.
C. A. M. Marshall & W. D. Hawthorne (2012). Important plants of northern Nimba County, Liberia. Oxford Forestry Institute, ISBN 9780850742282.
W. D. Hawthorne, C. A. M. Marshall, M. Abu Juam and V. K. Agyeman (2011). The Impact of Logging Damage on Tropical Rainforests, their Recovery and Regeneration: An Annotated Bibliography. Oxford Forestry Institute, ISBN 9780850741688.