The influence of the Benguela upwelling system on Namibia's marine biodiversity
Plant species richness, endemism, and genetic resources in Namibia
Species richness and conservationof Namibian freshwater macro-invertebrates,fish and amphibians
Species richness and biogeography of non-acarine arachnids in Namibia
The species diversity, distributionand conservation of Namibian mammals
Avian diversity and endemism in Namibia
Shrikes (Laniidae) of the world