1. 1 Land Use Planning and Management, South African National Biodiversity Institute; Invasive Species Programme; University of KwaZulu-Natal - School of Agricultural, Earth and Environmental Sciences; Pietermaritzburg South Africa
2. UMR Peuplements Végétaux et Bio-agresseurs en Milieu Tropical, CIRAD; University of KwaZulu-Natal - School of Agricultural, Earth and Environmental Sciences, Land Use Planning and Management; Pietermaritzburg South Africa
3. SEEC - Statistics in Ecology, Environment and Conservation; Department of Statistical Sciences; African Climate and Development Initiative; University of Cape Town; Cape Town Western Cape South Africa