Cookies Policy
X
Cookie Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Extra-pair Paternity in the Dusky Warbler, Phylloscopus fuscatus: a Test of the 'Constrained Female Hypothesis'

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
MyBook is a cheap paperback edition of the original book and will be sold at uniform, low price.

Buy this article

Price:
$30.00+ Tax (if applicable)
Add to Favorites

image of Behaviour

The 'constrained-female hypothesis' (CFH) states that females risk losing their social partner's assistance in brood care when they engage in extra-pair copulations. Hence, it is predicted that individual differences in female extra-pair behaviour can be explained in terms of (1) the amount of male care that females risk to lose (2) the intrinsic ability of females to raise offspring without male help, and (3) food availability, facilitating uni-parental care. The dusky warbler, a species with a polygynous mating system and a high rate of extra-pair paternity (45% of the offspring) offers an excellent opportunity to test all these predictions. In accordance with prediction (1) I find that females in pairing situations in which they cannot expect to receive male assistance in brood care are more likely to have extra-pair young than females in situations where bi-parental care is the rule. Using age and bill morphology as predictors for a female's ability to raise nestlings alone, I find no direct support for prediction (2). Finally, variation in food availability (3) had no influence on extra-pair paternity. Overall, the CFH provides some explanation for why female promiscuity differs between situations of bi-parental and uni-parental care, but the large amount of remaining variation can neither be explained by food abundance nor by individual female characteristics.

Loading

Article metrics loading...

/content/journals/10.1163/156853903322589669
2003-08-15
2015-05-27

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to email alerts
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Name:*
    Email:*
    Your details
    Name:*
    Email:*
    Department:*
    Why are you recommending this title?
    Select reason:
     
     
     
     
    Other:
     
    Behaviour — Recommend this title to your library

    Thank you

    Your recommendation has been sent to your librarian.

  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation