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Avian InvasionsThe Ecology and Evolution of Exotic Birds$
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Tim M. Blackburn, Julie L. Lockwood, and Phillip Cassey

Print publication date: 2009

Print ISBN-13: 9780199232543

Published to Oxford Scholarship Online: September 2009

DOI: 10.1093/acprof:oso/9780199232543.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 17 May 2021

The Genetics of Exotic Bird Introductions

The Genetics of Exotic Bird Introductions

(p.187) 8 The Genetics of Exotic Bird Introductions
Avian Invasions

Tim M. Blackburn

Julie L. Lockwood

Phillip Cassey

Oxford University Press

This chapter considers the long-term outcomes of exotic bird establishment in terms of the propensity for evolution in exotic bird populations. It shows that exotic birds have occasionally lost substantial amounts of genetic variation via the introduction process, but that just as many (if not more) populations have not lost genetic variation. It is difficult to pin down the influence that the loss or gain of genetic variation has on establishment success; this is a research area that is ripe for exploration.

Keywords:   genetic variation, introduction process, heterozygosity, bottleneck, genetic drift, hybridization, heterosis, founder effects, migrant pool

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