Funding for this research was provided by:
Alexander von Humboldt’s Georg Foster HERMES Experienced Research Fellowship (grant nos. 3.4-NGA-1164298, ZAF-1164298 –GFHERMES-E)
University of Pretoria
The South African National Research Foundation
Article History
Received: 26 June 2020
Accepted: 9 October 2020
First Online: 17 October 2020