My major interest is the inference of processes that underlie the observed spatial and phylogenetic patterns of diversity, principally of invertebrates. Practically this requires techniques used in biogeography, molecular systematics, phylogeography and population genetics and the emerging *omics tools. Conceptually this requires the teasing apart of contributing forces of adaptation and drift, and how these two forces are affected by environmental and demographic changes. My research is focused around the invertebrate fauna of the Southern Ocean and the Atlantic Ocean islands and sea mounts.