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Rising to the challenge? Inter-individual variation of the androgen response to social interactions in cichlid fish

2020Journal article Open access
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dc.contributor.authorFélix, Ana Sofia
dc.contributor.authorRoleira, António
dc.contributor.authorOliveira, Rui Filipe
dc.date.accessioned2021-06-23T23:10:44Z
dc.date.available2021-06-23T23:10:44Z
dc.date.issued2020
dc.description.abstractThe Challenge Hypothesis (Wingfield et al. Am. Nat. 136, 829-846) aims to explain the complex relationship between androgens and social interactions. Despite its well acceptance in the behavioral endocrinology literature, several studies have failed to found an androgen response to staged social interactions. Possible reasons for these inconsistencies are the use of single sampling points that may miss the response peak, and the occurrence of inter-individual variability in the androgen response to social interactions. In this study we addressed these two possible confounding factors by characterizing the temporal pattern of the androgen response to social interactions in the African cichlid, Oreochromis mossambicus, and relating it to inter-individual variation in terms of the individual scope for androgen response (i.e. the difference between baseline and maximum physiological levels for each fish) and behavioral types. We found that the androgen response to territorial intrusions varies between individuals and is related to their scope for response. Individuals that have a lower scope for androgen response did not increase androgens after a territorial intrusion but were more aggressive and exploratory. In contrast males with a higher scope for response had fewer aggressive and exploratory behaviors and exhibited two peaks of KT, an early response 2-15 min after the interaction and a late response at 60-90 min post-interaction. Given that the pharmacological challenge of the Hypothalamic-Pituitary-Gonad axis only elicits the late response, we suggest that these two peaks may be regulated by different physiological mechanisms, with the early response being mediated by direct brain-gonad neural pathways. In summary, we suggest that determining the temporal pattern of the androgen response to social interactions and considering inter-individual variation may be the key to understanding the contradictory results of the Challenge Hypothesis.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFélix, A. S., Roleira, A. Oliveira, R. F. (2020). Rising to the challenge? Inter-individual variation of the androgen response to social interactions in cichlid fish.pt_PT
dc.identifier.doi10.1016/j.yhbeh.2020.104755pt_PT
dc.identifier.issn0018506X
dc.identifier.urihttp://hdl.handle.net/10400.12/8196
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAcademic Press Inc.pt_PT
dc.relationMolecular mechanisms and evolutionary implications of social plasticity
dc.relationUnraveling the mechanisms underlying the androgen response to social interactions
dc.rights.urihttp://creativecommons.org/licenses/by-nd/4.0/pt_PT
dc.subjectMozambique Tilapiapt_PT
dc.subjectChallenge hypothesispt_PT
dc.subjectAndrogenspt_PT
dc.subjectTemporal patternpt_PT
dc.subjectInter-individual variationpt_PT
dc.subjectPersonalitypt_PT
dc.titleRising to the challenge? Inter-individual variation of the androgen response to social interactions in cichlid fishpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMolecular mechanisms and evolutionary implications of social plasticity
oaire.awardTitleUnraveling the mechanisms underlying the androgen response to social interactions
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXCL%2FBIA-ANM%2F0549%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F102892%2F2014/PT
oaire.citation.conferencePlaceUnited Statespt_PT
oaire.citation.endPage12pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleHormones and Behaviorpt_PT
oaire.citation.volume124pt_PT
oaire.fundingStream3599-PPCDT
person.familyNameFélix
person.familyNameRoleira
person.familyNameOliveira
person.givenNameAna Sofia
person.givenNameAntónio
person.givenNameRui
person.identifier760975
person.identifier.ciencia-idD318-BC7B-61D2
person.identifier.ciencia-idC819-B92D-184B
person.identifier.ciencia-id611C-50AD-6CE7
person.identifier.orcid0000-0002-3104-2495
person.identifier.orcid0000-0003-0716-6241
person.identifier.orcid0000-0003-1528-618X
person.identifier.ridA-3581-2013
person.identifier.scopus-author-id55882062100
person.identifier.scopus-author-id35561080400
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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