chapter  1
16 Pages

Background information on biological invasions

WithDonato Gualtieri

This chapter gives an exhaustive overview on the main aspects of biological invasions. At first, it determines what invasive alien species are by providing a coherent bio-legal definition. Subsequently, it analyses the phenomenon under the lenses of the DPSIR model, emphasising the expanding role of human agency conceived as a combination of driving forces exerting pressures on nature. A closer look at policy responses to biological invasions emphasises the role of a three-tier approach based on prevention, control and eradication and the need for a multilateral response capable of transcending national borders, in order to achieve a multi-level regulation.