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Nest desertion is not predicted by cuckoldry in the Eurasian penduline tit


Reference:

Van Dijk, R. E., Mészáros, L. A., Velde, M., Székely, T., Pogány, A., Szabad, J. and Komdeur, J., 2010. Nest desertion is not predicted by cuckoldry in the Eurasian penduline tit. Behavioral Ecology and Sociobiology, 64 (9), pp. 1425-1435.

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    Official URL:

    http://dx.doi.org/10.1007/s00265-010-0958-4

    Abstract

    Engagement in extra-pair copulations is an example of the abundant conflicting interests between males and females over reproduction. Potential benefits for females and the risk of cuckoldry for males are expected to have important implications on the evolution of parental care. However, whether parents adjust parental care in response to parentage remains unclear. In Eurasian penduline tits Remiz pendulinus, which are small polygamous songbirds, parental care is carried out either by the male or by the female. In addition, one third of clutches is deserted by both male and female. Desertion takes place during the egg-laying phase. Using genotypes of nine microsatellite loci of 443 offspring and 211 adults, we test whether extra-pair paternity predicts parental care. We expect males to be more likely to desert cuckolded broods, whereas we expect females, if they obtain benefits from having multiple sires, to be more likely to care for broods with multiple paternity. Our results suggest that parental care is not adjusted to parentage on an ecological timescale. Furthermore, we found that male attractiveness does not predict cuckoldry, and we found no evidence for indirect benefits for females (i.e., increased growth rates or heterozygosity of extra-pair offspring). We argue that male Eurasian penduline tits may not be able to assess the risk of cuckoldry; thus, a direct association with parental care is unlikely to evolve. However, timing of desertion (i.e., when to desert during the egg-laying phase) may be influenced by the risk of cuckoldry. Future work applying extensive gene sequencing and quantitative genetics is likely to further our understanding of how selection may influence the association between parentage and parental care.

    Details

    Item Type Articles
    CreatorsVan Dijk, R. E., Mészáros, L. A., Velde, M., Székely, T., Pogány, A., Szabad, J. and Komdeur, J.
    DOI10.1007/s00265-010-0958-4
    DepartmentsFaculty of Science > Biology & Biochemistry
    Publisher StatementBehavioral_Ecology_and_Sociobiology_2010.pdf: © The Author(s) 2010. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. Van Dijk, R. E., Mészáros, L. A., Velde, M., Székely, T., Pogány, Ák., Szabad, J.án., Komdeur, J., 2010. Nest desertion is not predicted by cuckoldry in the Eurasian penduline tit. Behavioral Ecology and Sociobiology, 64(9), 1425-1435. Available: http://dx.doi.org/10.1007/s00265-010-0958-4
    RefereedYes
    StatusPublished
    ID Code19258

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