Within-day improvement in a behavioural display: wild birds 'warm up'

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dc.contributor.authorSchraft, Hannes A.
dc.contributor.authorMedina, Orlando J.
dc.contributor.authorMcClure, Jesse
dc.contributor.authorPereira, Daniel A.
dc.contributor.authorLogue, David M.
dc.date.accessioned2020-08-20T22:48:07Z
dc.date.available2020-08-20T22:48:07Z
dc.date.issued2017
dc.descriptionPermission to archive accepted author manuscript.en_US
dc.description.abstractMotor performance describes the vigour or skill required to perform a particular display. It is a behaviourally salient variable in birdsong and other animal displays, but little is known about within-individual variation in performance over short timescales. The metric ‘frequency excursion’ (FEX) quantifies birdsong performance as cumulative frequency modulation per unit time. We measured FEX in a large sample of recordings from free-living male Adelaide's warblers, Setophaga adelaidae. Our objectives were to quantify natural variation in performance and test the hypotheses that performance (1) improves as a function of recent practise, (2) decreases over consecutive repetitions of a single song type, (3) improves with rest between songs, (4) varies by singing mode and (5) changes during vocal interactions with neighbours. We found significant variation in performance among individuals and song types. Consecutive repetition of a song type, rest between songs, singing mode and vocal interaction did not strongly affect performance. Performance consistently increased with song order, however, indicating that males warm up during morning singing. This is the first demonstration of such an effect in a sexual display. The warm-up effect may explain the prevalence of intense dawn singing in birds (dawn chorus), if rivals engage in an arms race to warm up.en_US
dc.description.peer-reviewYesen_US
dc.identifier.citationSchraft, H. A., Medina, O. J., McClure, J., Pereira, D. A., & Logue, D. M. (2017). Within-day improvement in a behavioural display: Wild birds 'warm up'. Animal Behaviour, 124, 167-174. https://doi.org/10.1016/j.anbehav.2016.12.026en_US
dc.identifier.urihttps://hdl.handle.net/10133/5748
dc.language.isoen_USen_US
dc.publisherElsevieren_US
dc.publisher.departmentDepartment of Psychologyen_US
dc.publisher.facultyArts and Scienceen_US
dc.publisher.institutionSan Diego State Universityen_US
dc.publisher.institutionUniversity of California, Davisen_US
dc.publisher.institutionUniversity of Puerto Ricoen_US
dc.publisher.institutionUniversity of Massachusettsen_US
dc.publisher.institutionUniversidad del Valleen_US
dc.publisher.institutionUniversity of Lethbridgeen_US
dc.publisher.urlhttps://doi.org/10.1016/j.anbehav.2016.12.026en_US
dc.subjectAnti-exhaustion hypothesisen_US
dc.subjectBehavioural displayen_US
dc.subjectDawn chorusen_US
dc.subjectFrequency excursionen_US
dc.subjectPerformanceen_US
dc.subjectWarm-up hypothesis
dc.subjectAdelaide's warblers
dc.subject.lcshSongbirds--Behavior
dc.subject.lcshBirdsongs
dc.subject.lcshSetophaga
dc.titleWithin-day improvement in a behavioural display: wild birds 'warm up'en_US
dc.typeArticleen_US
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