Habitat use of culturally distinct Galápagos sperm whale Physeter macrocephalus clans

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dc.contributor.author Eguiguren, Ana
dc.contributor.author Pirotta, Enrico
dc.contributor.author Cantor, Maurício
dc.contributor.author Rendell, Luke
dc.contributor.author Whitehead, Hal
dc.date.accessioned 2019-02-19T11:33:29Z
dc.date.available 2019-02-19T11:33:29Z
dc.date.issued 2019-01-17
dc.identifier.citation Eguiguren, A., Pirotta, E., Cantor, M., Rendell, L. and Whitehead, H. (2019) 'Habitat use of culturally distinct Galápagos sperm whale Physeter macrocephalus clans', Marine Ecology Progress Series, 609, pp. 257-270. doi:10.3354/meps12822 en
dc.identifier.volume 609 en
dc.identifier.startpage 257 en
dc.identifier.endpage 270 en
dc.identifier.issn 0171-8630
dc.identifier.issn 1616-1599
dc.identifier.uri http://hdl.handle.net/10468/7517
dc.identifier.doi 10.3354/meps12822
dc.description.abstract Ecological niche is traditionally defined at the species level, but individual niches can vary considerably within species. Research on intra-specific niche variation has been focussed on intrinsic drivers. However, differential transmission of socially learned behaviours can also lead to intra-specific niche variation. In sperm whales Physeter macrocephalus, social transmission of information is thought to generate culturally distinct clans, which at times occur sympatrically. Clans have distinct dialects, foraging success rates, and movement patterns, but whether the niches of clan members are also different remains unknown. We evaluated the differences in habitat use of clans off the Galápagos Islands, using data collected over 63 encounters between 1985 and 2014. During encounters, we recorded geographic positions, determined clan identity through analysis of group vocalizations and individual associations, and used topographical and oceanographic variables as proxies of sperm whale prey distribution. We used logistic generalized additive models, fitted with generalized estimating equations to account for spatiotemporal autocorrelation, to predict clan identity as a function of the environment descriptors. Oceanographic variables marginally contributed to differentiating clans. Clan identity could be predicted almost entirely based on geographic location. This fine-scale, within-region spatial partitioning likely derives from whales preferring areas where members of their clans occur over temporal scales of a few months to a few years. By identifying differences in clans’ space use, we have uncovered another level of sperm whale life that is likely influenced by their cultural nature. en
dc.description.sponsorship Dalhousie University (Nova Scotia Graduate Scholarship; Patrick F. Lett Graduate Students’ Assistance Bursary); Conselho Nacional de Desenvolvimento Científico e Tecnológico (202581/2011-0; 153797/2016-9); Scottish Funding Council (grant reference HR09011) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Inter-Research en
dc.relation.uri https://www.int-res.com/abstracts/meps/v609/p257-270/
dc.rights © 2019, Inter-Research. All rights reserved. en
dc.subject Habitat preference en
dc.subject Cetacean en
dc.subject Culture en
dc.subject Generalized additive model en
dc.subject GAM en
dc.subject Generalized estimating equation en
dc.subject GEE en
dc.subject Galápagos en
dc.title Habitat use of culturally distinct Galápagos sperm whale Physeter macrocephalus clans en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Enrico Pirotta, School Of Bio, Earth & Envir Sc Office, University College Cork, Cork, Ireland. +353-21-490-3000 en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 12 months after publication by request of the publisher. en
dc.check.date 2020-01-17
dc.date.updated 2019-02-18T18:38:23Z
dc.description.version Accepted Version en
dc.internal.rssid 474048021
dc.contributor.funder Dalhousie University en
dc.contributor.funder Conselho Nacional de Desenvolvimento Científico e Tecnológico en
dc.contributor.funder Killam Trusts en
dc.contributor.funder Scottish Funding Council en
dc.contributor.funder Natural Sciences and Engineering Research Council of Canada en
dc.contributor.funder National Geographic Society en
dc.contributor.funder Cetacean Society International en
dc.contributor.funder International Whaling Commission
dc.contributor.funder Whale and Dolphin Conservation Society, United Kingdom
dc.contributor.funder Green Island Foundation
dc.description.status Peer reviewed en
dc.identifier.journaltitle Marine Ecology Progress Series en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.bibliocheck Published 17.01.2019. AV can be accessed after 12 months: 17.01.2020. PV can be archived after 5 years. Reset dc. check. date to 17.01.2024. Replace AV with PV on 17.01.2024.

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