Infrasonic and audible signals in male peafowl (Pavo cristatus) mating displays

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dc.contributor.authorFreeman, Angela
dc.contributor.examiningcommitteeGillis, Darren (Biological Sciences) Sealy, Spencer (Biological Sciences) Kelly, Debbie (Psychology)en_US
dc.contributor.supervisorHare, James F. (Biological Sciences)en_US
dc.date.accessioned2012-09-20T20:50:33Z
dc.date.available2012-09-20T20:50:33Z
dc.date.issued2012-09-20
dc.degree.disciplineBiological Sciencesen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractI recorded acoustic and visual components of Indian Peafowl (Pavo cristatus) mating displays at the Assiniboine Park Zoo, in Winnipeg, Manitoba, Canada. I determined that males produce infrasound (<20 Hz) in their train displays, and documented responses of peafowl to playbacks of both audible and infrasonic components of their vocalizations and train displays. Peafowl responded to infrasonic signals by increasing alertness and locomotory behaviours, while males also responded by calling. In response to audible call playbacks, males called and faced the playback unit while females increased locomotion and alertness, though peafowl did not respond to audible signal components from the train display, suggesting that infrasonic components constitute the essential signal component within those displays. Beyond revealing a critical role of acoustic signals in modulating interactions among peafowl, my results provide the first empirical evidence of a bird producing and perceiving infrasound as a signal.en_US
dc.description.noteOctober 2012en_US
dc.identifier.urihttp://hdl.handle.net/1993/8903
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectinfrasounden_US
dc.subjectcommunicationen_US
dc.subjectsexual selectionen_US
dc.subjectpeafowlen_US
dc.subjectacousticen_US
dc.titleInfrasonic and audible signals in male peafowl (Pavo cristatus) mating displaysen_US
dc.typemaster thesisen_US
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