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Implications comportementales de la monogamie stricte : Reconnaissance individuelle et appariement selon des critères génétiques chez la mouette tridactyle, Rissa tridactyla.

Abstract : This thesis is a study of individual recognition and mate choice in the black-legged kittiwake (Rissa tridactyla), a monogamous seabird with high inter-annual mate fidelity. Mate vocal recognition is experimentally shown, as well as parent recognition by chicks. Parental recognition of offspring at fledging is supported by the fact that newly fledged chicks return faster to their nests if parents react to their calls. Such recognition may be adaptive because recognized fledglings may spend less energy in unnecessary flights and interactions with other residents. Kittiwakes appear to be mated with genetically more dissimilar individuals than expected by chance, a pattern that seems to allow them to produce better and more heterozygous offspring. Genetically dissimilar pairs have higher hatching success, and homozygous offspring grow slower and are more likely to die before 25 days old than heterozygous offspring. Genetically similar pairs copulate less frequently, suggesting that genetic similarity between mates may affect their behaviour. Cues used by individuals to estimate their mate's genotype are still speculative. Vocal parameters are not likely to give information on genetic similarity, as calls of genetically dissimilar pairs do not differ from calls of genetically similar ones. Other parameters, whether visual or olfactory, may therefore be involved. Overall, these results suggest that mate choice may be quite intense in this genetically monogamous species.
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https://tel.archives-ouvertes.fr/tel-00205076
Contributor : Hervé Mulard <>
Submitted on : Sunday, February 17, 2008 - 8:35:26 PM
Last modification on : Thursday, December 10, 2020 - 12:36:34 PM
Long-term archiving on: : Tuesday, September 21, 2010 - 4:00:36 PM

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  • HAL Id : tel-00205076, version 2

Citation

Hervé Mulard. Implications comportementales de la monogamie stricte : Reconnaissance individuelle et appariement selon des critères génétiques chez la mouette tridactyle, Rissa tridactyla.. Ecologie, Environnement. Université Pierre et Marie Curie - Paris VI, 2007. Français. ⟨tel-00205076v2⟩

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