A simple and rapid method to prioritise targets for contingency planning to prevent biological invasions. The method identifies priority sites for managing particular high-risk incursions. A Shows the selection criteria used to select target species for climatic suitability analyses, with the number of species selected at each stage of selection indicated in parentheses. B Shows the criteria used to identify potential points of introduction for the select target species, as well as the criteria used to identify potential points of naturalisation, i.e. priority sites for monitoring in the eThekwini municipality.