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How integrated are behavioral and endocrine stress response traits? A repeated measures approach to testing the stress-coping style model

2015-02Journal article Open Access
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dc.contributor.authorBoulton, Kay
dc.contributor.authorCouto, Elsa
dc.contributor.authorGrimmer, Andrew J.
dc.contributor.authorEarley, Ryan L.
dc.contributor.authorCanario, Adelino V. M.
dc.contributor.authorWilson, Alastair J.
dc.contributor.authorWalling, Craig A.
dc.date.accessioned2018-12-07T14:52:57Z
dc.date.available2018-12-07T14:52:57Z
dc.date.issued2015-02
dc.description.abstractIt is widely expected that physiological and behavioral stress responses will be integrated within divergent stress-coping styles (SCS) and that these may represent opposite ends of a continuously varying reactive-proactive axis. If such a model is valid, then stress response traits should be repeatable and physiological and behavioral responses should also change in an integrated manner along a major axis of among-individual variation. While there is some evidence of association between endocrine and behavioral stress response traits, few studies incorporate repeated observations of both. To test this model, we use a multivariate, repeated measures approach in a captive-bred population of Xiphophorus birchmanni. We quantify among-individual variation in behavioral stress response to an open field trial (OFT) with simulated predator attack (SPA) and measure waterborne steroid hormone levels (cortisol, 11-ketotestosterone) before and after exposure. Under the mild stress stimulus (OFT), (multivariate) behavioral variation among individuals was consistent with a strong axis of personality (shy-bold) or coping style (reactive-proactive) variation. However, behavioral responses to a moderate stressor (SPA) were less repeatable, and robust statistical support for repeatable endocrine state over the full sampling period was limited to 11-ketotestosterone. Although post hoc analysis suggested cortisol expression was repeatable over short time periods, qualitative relationships between behavior and glucocorticoid levels were counter to our a priori expectations. Thus, while our results clearly show among-individual differences in behavioral and endocrine traits associated with stress response, the correlation structure between these is not consistent with a simple proactive-reactive axis of integrated stress-coping style. Additionally, the low repeatability of cortisol suggests caution is warranted if single observations (or indeed repeat measures over short sampling periods) of glucocorticoid traits are used in ecological or evolutionary studies focussed at the individual level.
dc.description.sponsorshipEPSRC; BBSRC; NERC; Biotechnology and Biological Sciences Research Council [BB/L022656/1, BB/G022976/2, BB/M025799/1]; Natural Environment Research Council [NE/I020245/1]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1002/ece3.1395
dc.identifier.issn2045-7758
dc.identifier.urihttp://hdl.handle.net/10400.1/11279
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley-Blackwell
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMale 3-spined stickleback
dc.subjectWater-borne cortisol
dc.subjectRainbow-trout
dc.subjectGasterosteus-aculeatus
dc.subjectIndividual-differences
dc.subjectPlasma-cortisol
dc.subjectSocial stress
dc.subjectNoninvasive measurement
dc.subjectXiphophorus-birchmanni
dc.subjectSheepshead swordtail
dc.titleHow integrated are behavioral and endocrine stress response traits? A repeated measures approach to testing the stress-coping style model
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage633
oaire.citation.issue3
oaire.citation.startPage618
oaire.citation.titleEcology and Evolution
oaire.citation.volume5
person.familyNameCouto
person.familyNameCanario
person.givenNameElsa
person.givenNameAdelino
person.identifier143624
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0001-9336-9963
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id56568523700
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublicationcc3f6bfd-86b1-45b2-a629-cddf25f1c828
relation.isAuthorOfPublication5f6e51ee-9113-469e-8b9e-f30f2d452521
relation.isAuthorOfPublication.latestForDiscoverycc3f6bfd-86b1-45b2-a629-cddf25f1c828

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