1. Department of Botany, Nelson Mandela University, Nelson Mandela Bay, South Africa
2. Africa Earth Observatory Network (AEON) – Earth Stewardship Science Research Institute (ESSRI) Nelson Mandela University, Nelson Mandela Bay, South Africa
3. Unit for Environmental Science and Management, North-West University, Potchefstroom, South Africa
4. South African Institute for Aquatic Biodiversity (SAIAB), Makhanda, South Africa