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Unexpectedly deep diving in an albatross

2022Journal article Open access
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dc.contributor.authorGuilford, Tim
dc.contributor.authorPadget, Oliver
dc.contributor.authorMaurice, Louise
dc.contributor.authorCatry, Paulo
dc.date.accessioned2022-06-03T18:37:31Z
dc.date.available2022-06-03T18:37:31Z
dc.date.issued2022
dc.description.abstractAlbatrosses are the iconic aerial wanderers of the oceans, supremely adapted for long-distance dynamic soaring flight. Perhaps because of this they are considered poorly adapted for diving1, in contrast to many smaller shearwater and petrel relatives, despite having amphibious eyes2, and an a priori mass advantage for oxygen-storage tolerance3. Modern biologging studies have largely confirmed this view4,5, casting doubt on earlier observations using capillary tube maximum depth gauges1, which may exaggerate depths, and emphasising albatrosses’ reliance on near-surface feeding. Nevertheless, uncertainty about albatross diving remains an important knowledge gap since bycatch in human fisheries (e.g. birds becoming hooked when diving for longline bait fish) is thought to be driving many population declines in this most threatened group of birds6. Here we show, using miniature electronic depth loggers (TDRs), that black-browed albatross, Thalassarche melanophris, can dive to much greater depths (19 m) and for much longer (52 s) than previously thought — three times the maxima previously recorded for this species (6 m and 15 s), and more than twice the maxima reliably recorded previously for any albatross (from 113.7 bird-days of tracking4,5,7). Further evidence that diving may be a significant behavioural adaptation in some albatrosses comes from co-deployed 3-axis accelerometers showing that these deeper dives, which occur in most individuals we tracked, involve active under-water propulsion without detectable initial assistance from momentum, sometimes with bottom phases typical of active prey pursuit. Furthermore, we find (from co-deployed GPS) that diving occurs primarily in the distal portions of long-distance foraging trips, with deeper dives occurring exclusively during daylight or civil twilight, confirming the importance of visual guidance.pt_PT
dc.description.sponsorshipFundação para a Ciênica e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationrice, L., & Catry, P. (2022). Unexpectedly deep diving in an albGuilford, T., Padget, O., Mauatross. Current Biology, 32(1), R26–R28. https://doi.org/10.1016/j.cub.2021.11.036pt_PT
dc.identifier.doi10.1016/j.cub.2021.11.036pt_PT
dc.identifier.issn09609822
dc.identifier.urihttp://hdl.handle.net/10400.12/8683
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCell Presspt_PT
dc.relationMarine and Environmental Sciences Centre
dc.relationMarine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleUnexpectedly deep diving in an albatrosspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04292%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04292%2F2020/PT
oaire.citation.conferencePlaceUnited Statespt_PT
oaire.citation.endPageR28pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPageR26pt_PT
oaire.citation.titleCurrent Biologypt_PT
oaire.citation.volume32pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameGuilford
person.familyNamePadget
person.familyNamemaurice
person.familyNameCatry
person.givenNameTim
person.givenNameOliver
person.givenNamelouise
person.givenNamePaulo
person.identifier.ciencia-id4D15-6341-FC71
person.identifier.ciencia-idEF1A-6A4A-013A
person.identifier.orcid0000-0003-3447-8443
person.identifier.orcid0000-0002-3516-7033
person.identifier.orcid0000-0003-3000-0522
person.identifier.ridI-5408-2013
person.identifier.scopus-author-id7003725276
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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