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dc.contributor.authorEmmerson, Michael G.
dc.contributor.authorSpencer, Karen A.
dc.identifier.citationEmmerson , M G & Spencer , K A 2018 , ' Group housing during adolescence has long-term effects on the adult stress response in female, but not male, zebra finches ( Taeniopygia guttata ) ' , General and Comparative Endocrinology , vol. 256 , pp. 71-79 .
dc.identifier.otherPURE: 250467447
dc.identifier.otherPURE UUID: 0e655400-ddfa-4b11-b93b-707777591260
dc.identifier.otherRIS: urn:F2C83C64E16244DB2A35CCE6886349F2
dc.identifier.otherScopus: 85025125640
dc.identifier.otherWOS: 000423013200012
dc.identifier.otherORCID: /0000-0002-2851-9379/work/78204992
dc.descriptionFunding was provided by a BBSRC David Phillips Research Fellowship to KAS and a University of St Andrews postgraduate scholarship to MGE.en
dc.description.abstractAdolescent social interactions can have long-term effects on physiological responses to stressors in later-life. A larger adolescent group size can result in higher stressor-induced secretion of glucocorticoids in adulthood. The effect may be due to a socially-mediated modulation of gonadal hormones, e.g. testosterone. However, group size (number of animals) has been conflated with social density (space per animal). Therefore it is hard to determine the mechanisms through which adolescent group size can affect the stress response. The current study aimed to tease apart the effects of group size and social density during adolescence on the physiological stress response and gonadal hormone levels in adulthood. Adolescent zebra finches were housed in groups varying in size (2 vs. 5 birds per cage) and density (0.03m3 vs. 0.06m3 per bird) during early adolescence (day 40-60). Density was only manipulated in birds raised in groups of five. Glucocorticoid concentration secreted in response to a standard capture and restraint stressor was quantified in adolescence (day 55±1) and adulthood (day 100+). Basal gonadal hormones concentrations (male testosterone, female estradiol) were also quantified in adulthood. Female birds housed in larger groups, independent of social density, secreted a higher glucocorticoid concentration 45 mins into restraint regardless of age, and had higher peak glucocorticoid concentration in adulthood. Adult gonadal hormone concentrations were not affected by group size or density. Our results suggest that group size, not density, is a social condition that influences the development of the endocrine response to stressors in female zebra finches, and that these effects persist into adulthood. The findings have clear relevance to the social housing conditions necessary for optimal welfare in captive animals, but also elucidate the role of social rearing conditions in the emergence of responses to stressors that may persist across the lifespan and affect fitness of animals in wild populations.
dc.relation.ispartofGeneral and Comparative Endocrinologyen
dc.rights© 2017 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license (
dc.subjectGroup sizeen
dc.subjectSocial stressen
dc.subjectStress responseen
dc.subjectBF Psychologyen
dc.titleGroup housing during adolescence has long-term effects on the adult stress response in female, but not male, zebra finches (Taeniopygia guttata)en
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Psychology and Neuroscienceen
dc.description.statusPeer revieweden

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