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An Experimental Test of the Information Model for Negotiation of Biparental Care

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  • Jessica Meade
  • Ki-Baek Nam
  • Jin-Won Lee
  • Ben J Hatchwell

Abstract

Background: Theoretical modelling of biparental care suggests that it can be a stable strategy if parents partially compensate for changes in behaviour by their partners. In empirical studies, however, parents occasionally match rather than compensate for the actions of their partners. The recently proposed “information model” adds to the earlier theory by factoring in information on brood value and/or need into parental decision-making. This leads to a variety of predicted parental responses following a change in partner work-rate depending on the information available to parents. Methodology/Principal Findings: We experimentally test predictions of the information model using a population of long-tailed tits. We show that parental information on brood need varies systematically through the nestling period and use this variation to predict parental responses to an experimental increase in partner work-rate via playback of extra chick begging calls. When parental information is relatively high, partial compensation is predicted, whereas when parental information is low, a matching response is predicted. Conclusions/Significance: We find that although some responses are consistent with predictions, parents match a change in their partner's work-rate more often than expected and we discuss possible explanations for our findings.

Suggested Citation

  • Jessica Meade & Ki-Baek Nam & Jin-Won Lee & Ben J Hatchwell, 2011. "An Experimental Test of the Information Model for Negotiation of Biparental Care," PLOS ONE, Public Library of Science, vol. 6(5), pages 1-7, May.
  • Handle: RePEc:plo:pone00:0019684
    DOI: 10.1371/journal.pone.0019684
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    1. John M. McNamara & Catherine E. Gasson & Alasdair I Houston, 1999. "Incorporating rules for responding into evolutionary games," Nature, Nature, vol. 401(6751), pages 368-371, September.
    2. John M. McNamara & Alasdair I. Houston & Zolta´n Barta & Jose´-Luis Osorno, 2003. "Should young ever be better off with one parent than with two?," Behavioral Ecology, International Society for Behavioral Ecology, vol. 14(3), pages 301-310, May.
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    Cited by:

    1. Tina A Barbasch & Rebecca Branconi & Robin Francis & Madison Pacaro & Maya Srinivasan & Geoffrey P Jones & Peter M Buston, 2021. "Negotiations over parental care: a test of alternative hypotheses in the clown anemonefish," Behavioral Ecology, International Society for Behavioral Ecology, vol. 32(6), pages 1256-1265.

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