Experimental manipulation of a signal trait reveals complex phenotype-behaviour coordination

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dc.contributor.authorLevin, Iris I.en
dc.contributor.authorFosdick, Bailey K.en
dc.contributor.authorTsunekage, Toshien
dc.contributor.authorAberle, Matthew A.en
dc.contributor.authorBurns, Christine M. Bergeonen
dc.contributor.authorHund, Amanda K.en
dc.contributor.authorSafran, Rebecca J.en
dc.contributor.departmentBiological Sciencesen
dc.date.accessioned2018-12-07T20:25:04Zen
dc.date.available2018-12-07T20:25:04Zen
dc.date.issued2018-10-19en
dc.description.abstractAnimals use morphological signals such as ornamental traits or weaponry to mediate social interactions, and the extent of signal trait elaboration is often positively associated with reproductive success. By demonstrating relationships between signal traits and fitness, researchers often make inferences about how behaviour operates to shape those outcomes. However, detailed information about fine-scale individual behaviour, and its physiological basis, can be difficult to obtain. Here we show that experimental manipulations to exaggerate a signal trait (plumage colour) and concomitant changes in testosterone and stress-induced corticosterone levels altered social interactivity between manipulated males and their social mates. On average, darkened males did not have higher levels of interactivity than unmanipulated males; however, males who experienced a greater shift in colour (pale to dark), a larger, positive change in testosterone levels, and a dampened stress-induced corticosterone response had a larger increase in the number of interactions with their social mate post-manipulation compared to pre-manipulation. This work provides new insights into the integration and real-time flexibility of multivariate phenotypes and direct evidence for the role of social interactions in pair bond maintenance.en
dc.description.notesWe thank J. Burt for assistance with the tags, S. Turbek, and T. Albrecht for assistance in the field, and Colorado Horse Rescue for access to their barn. A University of Colorado Innovative Seed Grant provided funding for this research and I. Levin was supported by a National Science Foundation Postdoctoral Research Fellowship (DBI-1306059).en
dc.description.sponsorshipUniversity of Colorado Innovative Seed Grant; National Science Foundation Postdoctoral Research Fellowship [DBI-1306059]en
dc.format.extent7 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1038/s41598-018-33948-0en
dc.identifier.issn2045-2322en
dc.identifier.other15533en
dc.identifier.pmid30341385en
dc.identifier.urihttp://hdl.handle.net/10919/86268en
dc.identifier.volume8en
dc.language.isoen_USen
dc.publisherSpringer Natureen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectamerican barn swallowsen
dc.subjectplumage coloren
dc.subjectsexual selectionen
dc.subjecthirundo-rusticaen
dc.subjectstressen
dc.subjectcorticosteroneen
dc.subjecttestosteroneen
dc.subjectsystemsen
dc.subjectlengthen
dc.subjectjuncoen
dc.titleExperimental manipulation of a signal trait reveals complex phenotype-behaviour coordinationen
dc.title.serialScientific Reportsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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