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Article Dans Une Revue Comptes Rendus Biologies Année : 2012

Response to begging calls by Zebra Finch parents : "first come, first served" rule may overcome a parental preference between chicks.

Résumé

In birds, parents may provide differential food provisioning among offspring according to their sex. Here, we test the hypothesis that events linked to the fine dynamics of begging behaviour could modulate parental preferences. After evaluating the preference related to chick sex for each parent of six Zebra Finch Taeniopygia guttata pairs, we studied the possible modifications of this preference when offspring begging was asynchronous. Our observations show that male parents follow a "first come, first served" rule, whereas females keep their initial choice. Although this study remains preliminary due to the sample size, it underlines the potential importance of investigating fine temporal features of begging behaviour to fully understand parents' provisioning strategies.

Dates et versions

hal-00722076 , version 1 (31-07-2012)

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Florence Levréro, Alain Blanc, Nicolas Mathevon. Response to begging calls by Zebra Finch parents : "first come, first served" rule may overcome a parental preference between chicks.. Comptes Rendus Biologies, 2012, 335 (2), pp.135-141. ⟨10.1016/j.crvi.2011.11.007⟩. ⟨hal-00722076⟩
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