Chapter

Geographic Range Expansion of Exotic Birds

Tim M. Blackburn, Julie L. Lockwood and Phillip Cassey

in Avian Invasions

Published in print June 2009 | ISBN: 9780199232543
Published online September 2009 | e-ISBN: 9780191715983 | DOI: https://dx.doi.org/10.1093/acprof:oso/9780199232543.003.0006

Series: Oxford Avian Biology

 Geographic Range Expansion of Exotic Birds

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Once an exotic species has successfully established a self-sustaining population, it may spread beyond its initial point of introduction and establish meaningful interactions with species native to this location. This chapter reviews the relatively large literature on models of geographic range expansion (spread) in invasive species. In particular, it notes the tremendous bias towards a few, very successful and widespread exotic bird species, on our understanding of exotic species range expansion. For the same reasons that exotic birds have already contributed to understanding invasions (i.e., there is detailed information on their numbers and locations), it is argued that with the right research effort they can also help us gain a clear picture of why some exotic species do not expand their ranges once established, or only do so after a long lag period.

Keywords: rate of spread; extent of spread; population growth rate; dispersal; boom and bust; diffusion process; diffusion-reaction equations; integrodifference equations

Chapter.  12294 words.  Illustrated.

Subjects: Vertebrates

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