My graduate students and postdoctoral fellows work on a range of native species focusing on evolutionary ecology, speciation and phylogeography. We use New Zealand invertebrates such as weta, stick insects and snails to address evolutionary questions and study species interactions in natural ecosystems. My students and I study weta and gecko hybrid zones. I collaborate with paleontologists (GNS Science) to investigate evolutionary relationships of extant molluscs and use their excellent fossil record to estimate rates of DNA evolution, patterns of extinction and speciation and the problem of convergence