An experimental test of the information model for negotiation of biparental care.

An experimental test of the information model for negotiation of biparental care.
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DOI:
10.1371/journal.pone.0019684
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Hatchwell BJ
Hatchwell BJ
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Meade J;Nam KB;Lee JW;Hatchwell BJ

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双亲照顾的理论模型表明,如果父母部分补偿其伴侣的行为变化,这可能是一种稳定的战略。然而,在实证研究中,父母偶尔会配合而不是补偿伴侣的行为。最近提出的“信息模型”增加了早期的理论,通过将育雏价值和/或需要的信息因素纳入父母的决策。这导致了各种预测的父母的反应后,在合作伙伴的工作率的变化,这取决于信息提供给父母。我们实验测试预测的信息模型使用人口的长尾山雀。我们表明,父母的育雏需要的信息系统地通过雏鸟期,并使用这种变化来预测父母的反应,通过播放额外的小鸡乞讨电话的实验增加合作伙伴的工作率。当亲本信息相对较高时,预测部分补偿,而当亲本信息较低时,预测匹配响应。我们发现,虽然有些反应是一致的预测,父母匹配的变化,他们的合作伙伴的工作率往往比预期的,我们讨论可能的解释,我们的研究结果。
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. 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. 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.
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