The LifeWatch ERIC Internal Joint Initiative is the development of innovative online resources and tools designed to further the investigation of Non-indigenous and Invasive Species (NIS), and their impact on ecosystem functioning and services. But what are these ecosystem services and functions, and what are invasive species?  Giving us the answers is Alberto Basset, Professor of Ecology at the University of Salento, who explains all this and more in this easy-to-follow interview, pitched at the non-initiated. The next time someone mentions NIS, you'll know exactly what they mean.  Duration: 15'. Impact on helping us to mitigate further biodiversity loss: high.