Story Jorisna Bonthuys. Read time 8 min. High levels of climate warming could shrink the geographic range of two-thirds of wild-harvested food plant species in southern Africa. Regional Environmental Change, the University of Cape Town’s (UCT) Carina Wessels and her co-authors focus on the links between climate change, traditional knowledge, food security and wild-harvested food plants. Wessels, who at the time was affiliated with the African Climate and Development Initiative (ACDI), collaborated on the study with Dr Christopher Trisos of the Climate Risk Laboratory at the ACDI and Dr Cory Merow, a quantitative ecologist from the University of Connecticut’s Department of Ecology and Evolutionary Biology.