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Ameliorating the loss of genetic diversity in captive wildlife populations

Ameliorating the loss of genetic diversity in captive wildlife populations Animal Conservation. Print ISSN 1367-9430 COMMENTARY Ameliorating the loss of genetic diversity in captive wildlife populations J. A. Ivy Life Sciences, San Diego Zoo Global, San Diego, CA, USA Correspondence Jamie A. Ivy, Life Sciences, San Diego Zoo Global, PO Box 120551, San Diego, CA 92112-0551, USA. Tel: 760 738 5056; Fax: 760 480 9573 Email: jivy@sandiegozoo.org doi: 10.1111/acv.12271 Small wildlife populations, particularly those that are iso- taxonomic groups, the median size of populations is 66 lated, face a variety of demographic and genetic chal- living individuals, with 39% of populations comprised of lenges. Stochastic variations in birth and death rates 50 or fewer animals (N = 428; Long, Dorsey & Boyle, drive random fluctuations in population size, which leave 2011). For AZA populations with reasonably complete small populations at higher risk of extinction. Genetic pedigrees (N = 264), median gene diversity (pedigree- concerns include inbreeding and its associated negative based expected heterozygosity; Lacy, 1995) was reported effects on fitness, as well as the increased influence of to be 92% of founding gene diversity, and 38% of popu- genetic drift on genetic diversity compared to that of nat- lations had a gene diversity below the 90% benchmark ural selection. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Animal Conservation Wiley

Ameliorating the loss of genetic diversity in captive wildlife populations

Ivy, J. A.
Animal Conservation , Volume 19 (2) – Apr 1, 2016
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References (13)

Publisher
Wiley
Copyright
Copyright © 2016 The Zoological Society of London
ISSN
1367-9430
eISSN
1469-1795
DOI
10.1111/acv.12271
Publisher site
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Abstract

Animal Conservation. Print ISSN 1367-9430 COMMENTARY Ameliorating the loss of genetic diversity in captive wildlife populations J. A. Ivy Life Sciences, San Diego Zoo Global, San Diego, CA, USA Correspondence Jamie A. Ivy, Life Sciences, San Diego Zoo Global, PO Box 120551, San Diego, CA 92112-0551, USA. Tel: 760 738 5056; Fax: 760 480 9573 Email: jivy@sandiegozoo.org doi: 10.1111/acv.12271 Small wildlife populations, particularly those that are iso- taxonomic groups, the median size of populations is 66 lated, face a variety of demographic and genetic chal- living individuals, with 39% of populations comprised of lenges. Stochastic variations in birth and death rates 50 or fewer animals (N = 428; Long, Dorsey & Boyle, drive random fluctuations in population size, which leave 2011). For AZA populations with reasonably complete small populations at higher risk of extinction. Genetic pedigrees (N = 264), median gene diversity (pedigree- concerns include inbreeding and its associated negative based expected heterozygosity; Lacy, 1995) was reported effects on fitness, as well as the increased influence of to be 92% of founding gene diversity, and 38% of popu- genetic drift on genetic diversity compared to that of nat- lations had a gene diversity below the 90% benchmark ural selection.

Journal

Animal Conservation – Wiley

Published: Apr 1, 2016

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