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Distribution of sampling localities in the north-western, northern, north-eastern, central and coastal belt regions of South Africa. Map also shows (i) the major biomes of South Africa; (ii) the Drakensberg mountain range (black dotted line); (iii) the Orange River system, which provide a route for dispersal through otherwise unsuitable habitat (solid black line, central); and (iv) the Tugela River (solid black line, coastal). Map adapted from the SANBI map of South African biomes.
