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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Inbreeding depression and founder diversity among captive and free-living populations of the endangered pink pigeon Columba mayeri
Animal Conservation, Volume 7, No. 4, Year 2004
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Description
The endemic pink pigeon has recovered from less than 20 birds in the mid-1970s to 355 free-living individuals in 2003. A major concern for the species' recovery has been the potential genetic problem of inbreeding. Captive pink pigeons bred for reintroduction were managed to maximise founder representation and minimise inbreeding. In this paper, we quantify the effect of inbreeding on survival and reproductive parameters in captive and wild populations and quantify DNA sequence variation in the mitochondrial d-loop region for pink pigeon founders. Inbreeding affected egg fertility, squab, juvenile and adult survival, but effects were strongest in highly inbred birds (F ≥ 0.25). Inbreeding depression was more apparent in free-living birds where even moderate levels of inbreeding affected survival, although highly inbred birds were equally compromised in both captive and wild populations. Mitochondrial DNA haplotypic diversity in pink pigeon founders is low, suggesting that background inbreeding is contributing to low fertility and depressed productivity in this species, as well as comparable survival of some groups of non-inbred and nominally inbred birds. Management of wild populations has boosted population growth and may be required long-term to offset the negative effects of inbreeding depression and enhance the species' survival. © 2004 The Zoological Society of London.
Authors & Co-Authors
Swinnerton, Kirsty J.
United Kingdom, Jersey
Durrell Wildlife Conservation Trust
Canada, Guelph
Wildlife Preservation Trust Canada
Mauritius, Vacoas
Mauritian Wildlife Foundation
United Kingdom, Canterbury
University of Kent
United States, Makawao
Maui Forest Bird Recovery Project
Groombridge, Jim J.
United Kingdom, Canterbury
University of Kent
United Kingdom, London
Zoological Society of London Institute of Zoology
Jones, Carl G.
United Kingdom, Jersey
Durrell Wildlife Conservation Trust
Mauritius, Vacoas
Mauritian Wildlife Foundation
Burn, Robert W.
United Kingdom, Reading
University of Reading
Mungroo, Yousoof
Mauritius
Ministry of Agric./natural Rsrc.
Statistics
Citations: 61
Authors: 5
Affiliations: 8
Identifiers
Doi:
10.1017/S1367943004001556
Research Areas
Cancer
Genetics And Genomics
Mental Health
Sexual And Reproductive Health
Study Design
Cross Sectional Study