A major goal in the biodiversity sciences is to understand spatial and temporal patterns and processes of biotic diversity across hierarchical levels, from genetic diversity to ecosystems. This has become particularly critical in the face of rapid environmental change, the threat posed by biological invasions as well as biodiversity loss. My research focuses mainly at two levels: conservation genetics and invasion biology. Most of my work falls within two geographic regions: (a) The south-western arid zone of southern Africa and, (b) Southern Oceanic Islands, specifically the Prince Edward Island group.
