IDEAS home Printed from https://ideas.repec.org/a/oup/beheco/v22y2011i1p82-92.html
   My bibliography  Save this article

Habitat saturation, benefits of philopatry, relatedness, and the extent of co-operative breeding in a cichlid

Author

Listed:
  • Dik Heg
  • Susan Rothenberger
  • Roger Schürch

Abstract

Co-operative breeding in vertebrates may emerge due to subordinates delaying dispersal when free breeding habitat is not available ('habitat saturation' hypothesis, HS). However, delayed dispersal might also be due to younger individuals postponing dispersal to when they are more competitively able or have more to gain from breeding independently ("benefits-of-philopatry" hypothesis, BP) or to when inclusive fitness benefits no longer outweigh the benefits from independent breeding ("kin selection" hypothesis, KS). Here, we show in three experiments that both HS and BP determine the extent of co-operative breeding in the cichlid Neolamprologus pulcher. Contrary to the KS, individuals significantly avoided settlement with related individuals, and an additional settlement experiment confirmed this result. Our results suggest that kin structure in these cichlids emerges from limits on dispersal, but if such barriers are absent, cichlids prefer to settle with unrelated individuals to maximize the benefits of direct reproductive participation. Copyright 2011, Oxford University Press.

Suggested Citation

  • Dik Heg & Susan Rothenberger & Roger Schürch, 2011. "Habitat saturation, benefits of philopatry, relatedness, and the extent of co-operative breeding in a cichlid," Behavioral Ecology, International Society for Behavioral Ecology, vol. 22(1), pages 82-92.
  • Handle: RePEc:oup:beheco:v:22:y:2011:i:1:p:82-92
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1093/beheco/arq170
    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.

    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:82-92. 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.