• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Effect of extra-pair paternity on effective population size in a reintroduced population of the endangered hihi, and potential for behavioural management

    Author(s)
    Castro, I
    Mason, KM
    Armstrong, DP
    Lambert, DM
    Griffith University Author(s)
    Lambert, David M.
    Year published
    2004
    Metadata
    Show full item record
    Abstract
    We collected genetic and behavioural data on hihi (Notiomysts cincta, an endangered New Zealand bird) after reintroduction to Mokoia Island to assess the effect of extrapair copulation on effective population size (Ne), and investigate the potential for increasing Ne through behavioural management. DNA fingerprinting revealed that 46% of chicks (n=188) resulted from extra-pair paternity, and 82% of broods (n=56) had at least one extra-pair chick. Of the extra-pair young, 34% (n=89) were from unpaired males, and the remainder were from paired males. Variance in reproductive success (VRS) among individuals changed between ...
    View more >
    We collected genetic and behavioural data on hihi (Notiomysts cincta, an endangered New Zealand bird) after reintroduction to Mokoia Island to assess the effect of extrapair copulation on effective population size (Ne), and investigate the potential for increasing Ne through behavioural management. DNA fingerprinting revealed that 46% of chicks (n=188) resulted from extra-pair paternity, and 82% of broods (n=56) had at least one extra-pair chick. Of the extra-pair young, 34% (n=89) were from unpaired males, and the remainder were from paired males. Variance in reproductive success (VRS) among individuals changed between years, and the relative variance among males and females depended on the sex ratio. VRS increased when measured over longer time scales, the variance in recruits being three times higher than the variance in the number of hatchlings. Extra-pair copulation increased VRS by 150% in 1 year and decreased it by 30% in another year, but this only caused a 4% decrease and 8% increase, respectively, to Ne=N. Although there is potential to manage VRS in this species through behavioural management, a more important factor is adult lifespan, which is the main correlate of lifetime reproductive success as well as the determinant of generation time. The high annual mortality rate in Mokoia hihi (females=64%, males= 52%) has prevented the population from growing, so the key factors limiting N and Ne=N are the same.
    View less >
    Journal Title
    Conservation Genetics
    Volume
    5
    Issue
    3
    DOI
    https://doi.org/10.1023/B:COGE.0000031146.51681.b0
    Subject
    Environmental sciences
    Biological sciences
    Molecular evolution
    Publication URI
    http://hdl.handle.net/10072/28283
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander