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Invasive populations are ubiquitous and invariably carry consequences. A gene for herbicide resistance spreads; a tumour grows in a loved one's body; an agricultural pest sweeps across the country; a new pathogen proliferates around the world. All of these are invasive populations – populations of genes, cells, or organisms spreading without control and having massive impact. Our collective desire to understand how invasive populations spread has inspired a rich body of basic theory developed from foundations laid in physics and statistics over a century ago. This theory has, however, often failed to explain real patterns in nature because a key consideration has been missing – evolution. The last few decades have seen a growing awareness that evolution plays out on timescales that matter to many systems. The recent emergence of evolutionary thinking in invasion biology has generated important new ideas and has enriched our understanding not only of invasions but of ecology and evolution more broadly.
This accessible textbook introduces these new ideas. It provides both a survey of the field – a story about the history and development of our understanding – as well as a synthesis of the new developments. There are many titles on biological invasions that typically take a purely ecological viewpoint, whilst those texts in which evolution does feature have tended to concentrate on adaptation to new environments. This book instead focuses on the intimate interplay between ecological and evolutionary processes as populations spread through time and space.
The Ecology and Evolution of Invasive Populations is an advanced textbook aimed at graduate students and researchers in ecology and evolutionary biology seeking a broad, up-to-date, and authoritative overview of the field. The study of biological invasions is no longer a specialized sub-discipline of ecology; this book will also be of relevance to a far broader academic readership from disciplines ranging across physics, mathematics, and medicine.
1. Introduction
2. Why do Populations Invade New Areas?
3. Evolution on Invasion Fronts
4. Stochasticity and Invasion Fronts
5. Stochastic Evolutionary Processes on Invasion Fronts
6. Pushed and Pulled Waves
7. Some Interesting Wrinkles
8. Biotic Interactions
9. Management of Invasive Populations
Bibliography
Appendix A: Diffusion Confusion
Appendix B: Births, Deaths, and Logistic Growth
Appendix C: Probability Distributions, Random Numbers, and Simulation
Appendix D: Natural Invasions with Documented Trait Shifts
Appendix E: Experimental Invasions
Appendix F: Cutting Room Floor
Ben Phillips is a Professor at the School of Molecular and Life Sciences, Curtin University, Australia. His expertise lies in population biology, employing both ecological and evolutionary perspectives to understand population change. He has published more than 170 scientific papers spanning a wide variety of topics and study systems. He started his professional career as a field biologist with an interest in reptiles. As a consequence of working on hybrid zones and a biological invasion in northern Australia, Phillps transitioned into modelling, fascinated by spatiotemporal processes.
