Publicación Artículo científico (article).

Social behaviour at the beginning of life: the role of quality signals and family size

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/309336
Digital.CSIC. Repositorio Institucional del CSIC
  • García-Antón, Alejandro
  • García-Campa, Jorge
  • Müller, Wendt
  • Morales, Judith
Social interactions facilitate information exchange for, among others, decision making and conflict resolution in animal societies. A central component of social interactions is the expression of signals of quality, and the role of signals can be expected to become more relevant in densely populated environments, in which social interactions are more frequent and the degree of conflict is probably stronger. We tested this hypothesis using the family context to explore whether a signal of quality expressed by the offspring modulates intrafamily interactions and whether it plays a more prominent role when the social density is increased. To this aim, we experimentally blocked a signalling trait, the ultraviolet (UV)/ yellow reflectance of breast feathers and used brood size as a proxy of social density in a small passerine, the blue tit, Cyanistes caeruleus. We found that UV-blocked offspring were involved in fewer social interactions than control nestlings, suggesting that the expression of quality signals might affect the position within the family social network. Interestingly, this effect was independent of brood size. Moreover, we detected an overall preference to be in physical contact with nestmates of a different UV colour phenotype, which was stronger in small broods. Our results suggest that quality signals expressed by the offspring can influence the intrafamily social structure and that this effect is modulated by social density and, presumably, by the degree of conflict., This work was supported by PID2019-106032GB-I00 and CGL2016-79390-P grants (to J.M.) funded by MCIN/AEI/ https://doi.org/10.13039/501100011033 and by ‘ERDF A way of making Europe’. J.G-C. was supported by Grant BES-2017-079750 and J.M. by a Ramón y Cajal contract RYC-2014-15145 funded by MCIN/AEI/ https://doi.org/10.13039/501100011033 and ‘ESF Investing in your future’., Peer reviewed
 

DOI: http://hdl.handle.net/10261/309336
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/309336

HANDLE: http://hdl.handle.net/10261/309336
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/309336
 
Ver en: http://hdl.handle.net/10261/309336
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/309336

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