Abstract
This lecture will look at the concrete effects of biological invasions: ecological, health and economic. Using specific but diverse examples, and based on the most recent research, we will review the range of known types of effects, as well as the extent of economic costs, the burden on human health and the great heterogeneity of impacts on biodiversity and ecosystems. We will then look at the difficulty of understanding and communicating when effects are extremely varied and difficult to compare, and what solutions are possible. This lecture will be research-oriented, showing research "in the making", with the presentation of a research project in progress, which I hope will make you want to drop everything to become a researcher in ecology.
