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dc.contributor.authorFais, A.
dc.contributor.authorJohnson, Mark
dc.contributor.authorWilson, M.
dc.contributor.authorAguilar de Soto, Natacha
dc.contributor.authorMadsen, P. T.
dc.identifier.citationFais , A , Johnson , M , Wilson , M , Aguilar de Soto , N & Madsen , P T 2016 , ' Sperm whale predator-prey interactions involve chasing and buzzing, but no acoustic stunning ' , Scientific Reports , vol. 6 , 28562 .
dc.identifier.otherPURE: 244398934
dc.identifier.otherPURE UUID: 4bf67316-c29b-4a7f-919f-5e0ef697fc2f
dc.identifier.otherScopus: 84976514111
dc.identifier.otherWOS: 000378518500001
dc.descriptionField work in Norway was funded by the Carlsberg Foundation and the National Danish Research Council to PTM. The NMFS study was funded by the U.S. Mineral Management Service. MJ is funded by the Marine Alliance for Science and Technology, Scotland, and by a Marie Curie Career Integration Grant. MW was funded by the Danish Council for Independent Research, Natural Science and NAS is currently funded by a EU Horizon 2020 MSC Fellowship.en
dc.description.abstractThe sperm whale carries a hypertrophied nose that generates powerful clicks for long-range echolocation. However, it remains a conundrum how this bizarrely shaped apex predator catches its prey. Several hypotheses have been advanced to propose both active and passive means to acquire prey, including acoustic debilitation of prey with very powerful clicks. Here we test these hypotheses by using sound and movement recording tags in a fine-scale study of buzz sequences to relate the acoustic behaviour of sperm whales with changes in acceleration in their head region during prey capture attempts. We show that in the terminal buzz phase, sperm whales reduce inter-click intervals and estimated source levels by 1-2 orders of magnitude. As a result, received levels at the prey are more than an order of magnitude below levels required for debilitation, precluding acoustic stunning to facilitate prey capture. Rather, buzzing involves high-frequency, low amplitude clicks well suited to provide high-resolution biosonar updates during the last stages of capture. The high temporal resolution helps to guide motor patterns during occasionally prolonged chases in which prey are eventually subdued with the aid of fast jaw movements and/or buccal suction as indicated by acceleration transients (jerks) near the end of buzzes.
dc.relation.ispartofScientific Reportsen
dc.rightsThis is an Open Access article. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.en
dc.subjectQH301 Biologyen
dc.titleSperm whale predator-prey interactions involve chasing and buzzing, but no acoustic stunningen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews.Sea Mammal Research Uniten
dc.contributor.institutionUniversity of St Andrews.Sound Tags Groupen
dc.contributor.institutionUniversity of St Andrews.Bioacoustics groupen
dc.contributor.institutionUniversity of St Andrews.Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews.Centre for Research into Ecological & Environmental Modellingen
dc.description.statusPeer revieweden

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