Julie Coetzee is Associate Professor in the Centre for Biological Control at Rhodes University, South Africa. Dr Coetzee completed her PhD at the University of the Witswatersrand, and her primary interest is plant-insect interactions, in the applied context of biological control of invasive species. She works on both floating and submerged aquatic weeds, and currently focuses on regime shift and resilience aspects of the invasion ecology of this suite of plants. Other interests include insect physiology, species distribution modelling, aquatic plant ecology and biostatistics.