1. Centre for Invasion Biology; Department of Botany and Zoology; Stellenbosch University; Matieland Stellenbosch South Africa
2. Evolutionary Genomics Group; Department of Botany and Zoology; Stellenbosch University; Matieland Stellenbosch South Africa
3. Section for Marine Living Resources; National Institute of Aquatic Resources; Technical University of Denmark; Lyngby Denmark
4. DST/NRF Research Chair in Inland Fisheries and Freshwater Ecology; South African Institute for Aquatic Biodiversity (SAIAB); Grahamstown South Africa
5. Centre for Invasion Biology; South African Institute for Aquatic Biodiversity (SAIAB); Grahamstown South Africa
6. Centre for Invasion Biology; Department of Mathematical Sciences; Stellenbosch University; Matieland Stellenbosch South Africa
7. Mathematical Biosciences Group; African Institute for Mathematical Sciences; Cape Town South Africa