Invasive Alien Arthropod Predators and Parasitoids: An Ecological Approach

Invasive alien species (IAS) coupled with climate change have been referred to as a "deadly duo". Until recently research on invasion biology has centred mainly on alien plants and vertebrates, despite the numerical dominance of invasive alien arthropods. Arthropods are the largest group of IAS worldwide. However, many alien arthropods are not invasive and play a beneficial role, particularly in controlling insect and mite pests. Indeed, more than 1500 terrestrial arthropod species have been identified as alien to Europe but only a fraction has been shown to cause either an ecological or economical impact, yet knowledge is severely limited by a paucity of data. The IOBC / WPRS Working Group "Benefits and Risks of Exotic Biological Control Agents" developed the theme of this book to begin to address the limitations in understanding of this important research area. Understanding invasion biology, and the dynamics of biological control practices, requires a multidisciplinary and unified approach, embracing and integrating all the research tools at our disposal, particularly modern molecular and modelling techniques. This book represents a timely synthesis of current ecological knowledge and research on alien arthropod predators and parasitoids.