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Whistle stability and variation in captive bottlenose dolphins (Tursiops truncatus) recorded in isolation and social contexts

dc.contributor.authorLopes, Patrícia Alexandra Rachinas
dc.contributor.authorLuís, Ana Rita
dc.contributor.authorBorges, Ana Sofia
dc.contributor.authorNeto, Márcia P.
dc.contributor.authorSantos, Manuel Eduardo dos
dc.date.accessioned2017-05-13T10:50:23Z
dc.date.available2017-05-13T10:50:23Z
dc.date.issued2018-04-03
dc.description.abstractCommon bottlenose dolphins (Tursiops trunca-tus) produce a range of underwater vocalizations, both pulsed (echolocation clicks and burst-pulses) and nonpulsed (whistles). Whistles may be emit-ted in stereotyped (signature) or variant patterns, and their production might be affected by sex, age, environmental, and social contexts. This study examined, non-intrusively, the whistle emissions of six captive bottlenose dolphins at Zoomarine in Algarve, Portugal, in two separate time sets and three different contexts: two of the animals in isolation in 2008, and all six in 2012, both seg-regated from their group and in social context. From a total of 1,681 whistles, 1,249 were ana-lyzed from 32 samples in different contexts: seven samples in isolation in 2008, 18 in segregation in 2012, and seven in social context. Through visual inspection of spectrograms, whistles were classi-fied into 12 different contour categories. Only one category was found in both time sets and could be considered a signature whistle by SIGID criteria (Janik et al., 2013). This contour was associated with the same animal in 2008 and 2012. Whistle emission rates were 7.8 times higher in isolation as compared with social context, and significant differences were also found in the end and maxi-mum frequencies as well as number of inflections and loops. Multiloop whistles were more common in isolation than in social contexts. The variant (nonstereotyped) contours dominated the whistle production in segregated contexts (but not by iso-lated animals) as well as in social contexts. This study highlights the importance of examining the nonstereotyped portion of the bottlenose dolphin’s whistle repertoire in different contexts as signa-ture whistle production may not be a constant or universal phenomenon.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia (FCT)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAquatic Mammals, 43(1), 1-13. Doi: 10.1578/AM.43.1.2017.1pt_PT
dc.identifier.doi10.1578/AM.43.1.2017.1pt_PT
dc.identifier.issn0167-5427
dc.identifier.urihttp://hdl.handle.net/10400.12/5447
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherEuropean Association for Aquatic Mammalspt_PT
dc.relation.publisherversionhttp://www.aquaticmammalsjournal.org/index.php?option=com_content&view=article&id=1567%3Awhistle-stability-and-variation-in-captive-bottlenose-dolphins-tursiops-truncatus-recorded-in-isolation-and-social-contexts&catid=158&Itemid=326pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectCommon bottlenose dolphinspt_PT
dc.subjectTursiops truncatuspt_PT
dc.subjectWistlespt_PT
dc.subjectEmission ratespt_PT
dc.subjectIsolationpt_PT
dc.subjectSocial contextspt_PT
dc.subjectCaptivitypt_PT
dc.titleWhistle stability and variation in captive bottlenose dolphins (Tursiops truncatus) recorded in isolation and social contextspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAR%2F04292%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F73886%2F2010/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F90037%2F2012/PT
oaire.citation.conferencePlaceNetherlandspt_PT
oaire.citation.endPage13pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleAquatic Mammalspt_PT
oaire.citation.volume43pt_PT
oaire.fundingStream5876
oaire.fundingStreamSFRH
oaire.fundingStreamSFRH
person.familyNamede Noronha Gamito Afonso dos Santos
person.givenNameManuel Eduardo
person.identifier.ciencia-id4E18-0CBD-48E0
person.identifier.orcid0000-0001-8225-9398
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoveryb7ab5e0d-61c3-4044-9cb5-73bdb6ed372d
relation.isProjectOfPublicationb45075bd-b8ca-49a6-bfec-2030828e7160
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relation.isProjectOfPublication.latestForDiscovery119d4edc-08c0-4224-b3ae-0f226bbe224f

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