Josie South


I completed my BSc. Hons and PhD at Queen’s University Belfast where I worked on predicting the ecological impact of invasive lionfish in the Caribbean with regards to habitat complexity and MPAs. My PhD was funded by the Department of Agriculture, Environment and Rural Affairs to predict and quantify the possible threat to Northern Irish sea fisheries with regards to invasive species and climate change. I am currently a post-doc with the inland fisheries and freshwater research team at the South African Institute of Aquatic Biodiversity.

Current research

I work on predicting and quantifying the ecological impact exerted by established and emerging aquatic invaders across Southern Africa. This is done through phenomenological methods (functional response analysis) and mechanistic work (behavioural assays and functional morphology). I am also interested in the way abiotic factors mediate predatory performance and have a collaborative project that looks to understand how aquatic contaminants can enhance or depress predation dynamics. Further, to this my work revolves around finding nature based mitigation solutions such as habitat restoration and enhancing biotic resistance of native communities. My main study species are the extra-limital populations of Clarias gariepinus in the Eastern and Western Cape and the invasive crayfish species Cherax quadricarinatus and Procambarus clarkii.