1. Centre for Invasion Biology; Cape Research Centre, South African National Parks; Steenberg South Africa
2. South African Environmental Observation Network (SAEON); Fynbos Node; Claremont South Africa
3. Department of Statistics; Nelson Mandela Metropolitan University; Port Elizabeth South Africa
4. South African National Parks Park Planning & Development; Conservation Services; Port Elizabeth South Africa
5. Centre for African Conservation Ecology, Zoology Department; Nelson Mandela Metropolitan University; Port Elizabeth South Africa
6. School of Biological Sciences; Monash University; Victoria Australia