IDEAS home Printed from https://ideas.repec.org/a/oup/beheco/v22y2011i1p73-81.html
   My bibliography  Save this article

Extrapair paternity, song, and genetic quality in song sparrows

Author

Listed:
  • Christopher E. Hill
  • Çağlar Akçay
  • S. Elizabeth Campbell
  • Michael D. Beecher

Abstract

Most songbirds are socially monogamous, yet molecular studies have found that in most species, some offspring in the nest are sired by males other than the social mate of the female. The functional significance of extrapair paternity (EPP) in social monogamy is poorly understood, despite numerous theoretical and empirical studies in the last decades. We have examined EPP in the song sparrow (Melospiza melodia) using microsatellites and tested whether females choose as extrapair mates males that 1) had larger song repertoires, 2) shared more songs with their neighbors, 3) were more heterozygous, or 4) were less related to the females than the social mate of these. We found that 24% of offspring were sired by extrapair males and that the extrapair sires were invariably neighbors. However, neither song repertoire size nor song sharing with neighbors predicted a male's EPP success. Furthermore, neither heterozygosity of a male nor his relatedness to the female predicted EPP success. At the same time, males that did not lose paternity in their own nest or gain paternity in other nests tended to be younger. These results indicate that females are not using song repertoire size or song sharing as a basis for extrapair mate choice and are not likely to accrue significant genetic benefits from EPP. Instead, the occurrence and level of EPP in this population might be primarily governed by behavioral trade-offs between mate guarding and pursuing extrapair copulations. We suggest that detailed behavioral studies are needed to understand extrapair mating in this species. Copyright 2011, Oxford University Press.

Suggested Citation

  • Christopher E. Hill & Çağlar Akçay & S. Elizabeth Campbell & Michael D. Beecher, 2011. "Extrapair paternity, song, and genetic quality in song sparrows," Behavioral Ecology, International Society for Behavioral Ecology, vol. 22(1), pages 73-81.
  • Handle: RePEc:oup:beheco:v:22:y:2011:i:1:p:73-81
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1093/beheco/arq171
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Çağlar Akçay & William A. Searcy & S. Elizabeth Campbell & Veronica A. Reed & Christopher N. Templeton & Kayla M. Hardwick & Michael D. Beecher, 2012. "Who initiates extrapair mating in song sparrows?," Behavioral Ecology, International Society for Behavioral Ecology, vol. 23(1), pages 44-50.
    2. Clare C. Rittschof & Samantha A. Hilber & M. Scarlett Tudor & Colette M. St Mary, 2012. "Modeling male reproductive strategies and optimal mate number in an orb-web spider," Behavioral Ecology, International Society for Behavioral Ecology, vol. 23(1), pages 1-10.
    3. Angelika Poesel & Douglas A. Nelson & H. Lisle Gibbs, 2012. "Song sharing correlates with social but not extrapair mating success in the white-crowned sparrow," Behavioral Ecology, International Society for Behavioral Ecology, vol. 23(3), pages 627-634.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:oup:beheco:v:22:y:2011:i:1:p:73-81. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Oxford University Press) or (Christopher F. Baum). General contact details of provider: https://academic.oup.com/beheco .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.