Abstract
Biological invasions are one of the main threats to biodiversity. Numerous studies have demonstrated the harmful effects of biological invasions in species extinctions, particularly among island species. However, biodiversity is not only limited to the number of species present : it is also measured in different dimensions, notably taxonomic, functional and phylogenetic. This seminar will look at the consequences of biological invasions on these different dimensions, using concrete examples of ecological disturbance for different groups such as birds, mammals, fish, reptiles and amphibians. We will see how analysis of the ecological profiles of invasive species, as well as those of vulnerable species, provides a better understanding of the mechanisms that explain the success of invasive alien species, particularly in island ecosystems. An integrated approach to the various dimensions of biodiversity will help guide decisions on prioritizing and managing biological invasions. Thanks to new approaches developed within our research group, we will present new spatial and species-specific indicators that are both operational and transferable to the French scale.
