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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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The Genetics of Exotic Bird Introductions

The Genetics of Exotic Bird Introductions

Chapter:
(p.187) 8 The Genetics of Exotic Bird Introductions
Source:
Avian Invasions
Author(s):

Tim M. Blackburn

Julie L. Lockwood

Phillip Cassey

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199232543.003.0008

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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