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dc.contributor.author
Pitcher, Benjamin J.
dc.contributor.author
Briefer, Elodie F.
dc.contributor.author
McElligott, Alan G.
dc.date.accessioned
2018-05-23T13:56:58Z
dc.date.available
2017-06-11T19:03:37Z
dc.date.available
2018-05-23T13:56:58Z
dc.date.issued
2015-08
dc.identifier.issn
1471-2148
dc.identifier.other
10.1186/s12862-015-0429-7
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/103611
dc.identifier.doi
10.3929/ethz-b-000103611
dc.description.abstract
Background Mammal vocal parameters such as fundamental frequency (or pitch; f o ) and formant dispersion often provide information about quality traits of the producer (e.g. dominance and body size), suggesting that they are sexually selected. However, little experimental evidence exists demonstrating the importance of these cues in intrasexual competition, particularly f o . Male Fallow deer (bucks) produce an extremely low pitched groan. Bucks have a descended larynx and generate f o well below what is expected for animals of their size. Groan parameters are linked to caller dominance, body size and condition, suggesting that groans are the product of sexual selection. Using a playback experiment, we presented bucks with groans that had been manipulated to alter vocal cues to these male characteristics and compared the response to the same, non-modified (natural) groans. Results We experimentally examined the ability of bucks to utilise putative cues to dominance (f o ), body size (formant frequencies) and condition (groan duration), when assessing competitors. We found that bucks treated groans with lowered f o (more dominant), and lowered formant frequencies (larger caller) as more threatening. By contrast, groans with raised formant frequencies (smaller caller), and shorter durations (more fatigued caller) were treated as less threatening. Conclusions Our results indicate that intrasexual selection is driving groans to concurrently convey caller dominance, body size and condition. They represent the first experimental demonstration of the importance of f o in male competition in non-human mammals, and show that bucks have advanced perception abilities that allow them to extract information based on relatively small changes in key parameters.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
BioMed Central
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Body size
en_US
dc.subject
Condition
en_US
dc.subject
Dominance
en_US
dc.subject
Fundamental frequency
en_US
dc.subject
Male-male competition
en_US
dc.subject
Sexual selection
en_US
dc.subject
Signalling
en_US
dc.subject
Vocal
en_US
dc.title
Intrasexual selection drives sensitivity to pitch, formants and duration in the competitive calls of fallow bucks
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2015-08-17
ethz.journal.title
BMC Evolutionary Biology
ethz.journal.volume
15
en_US
ethz.journal.abbreviated
BMC evol. biol.
ethz.pages.start
149
en_US
ethz.size
13 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
004100194
ethz.publication.place
London
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich, direkt::00012 - Lehre und Forschung, direkt::00007 - Departemente, direkt::02350 - Departement Umweltsystemwissenschaften / Department of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences (IAS)::08682 - Einheit für Verhalten, Gesundheit und Tierwohl
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich, direkt::00012 - Lehre und Forschung, direkt::00007 - Departemente, direkt::02350 - Departement Umweltsystemwissenschaften / Department of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences (IAS)::08682 - Einheit für Verhalten, Gesundheit und Tierwohl
ethz.date.deposited
2017-06-11T19:04:10Z
ethz.source
ECIT
ethz.identifier.importid
imp5936536bb07af79331
ethz.ecitpid
pub:161873
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-18T15:34:52Z
ethz.rosetta.lastUpdated
2018-05-23T13:57:05Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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