Acute impacts of biologging devices on the diving behaviour of Manx shearwaters

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dc.contributor.authorClairbaux, Manonen
dc.contributor.authorDarby, Jamie H.en
dc.contributor.authorCaulfield, Emmaen
dc.contributor.authorJessopp, Mark J.en
dc.contributor.funderIrish Research Councilen
dc.date.accessioned2025-04-15T11:44:03Z
dc.date.available2025-04-15T11:44:03Z
dc.date.issued2025en
dc.description.abstractBiologging studies rely on the assumption that equipped animal behaviours are representative of the ones displayed by unequipped individuals. Identifying any tagging effects is therefore necessary to correctly interpret recorded data from equipped animals. The majority of seabird studies report an absence of tag effects using broad metrics such as breeding success or foraging trip duration. However, animals may compensate for tag attachment through increased effort or behavioural responses. We compared foraging trip and dive characteristics of 42 breeding Manx shearwaters (Puffinus puffinus) equipped with a range of biologging tags representing 0.9–3.7% body mass. There was no evidence that increasing tag weight affected foraging trip duration, but individuals equipped with heavier tags travelled shorter distances and at slower speed as well as spending more time in Area Restricted Search behaviour. The number of dives performed per hour of foraging trip was not affected by increasing tag weight, but individuals with the heaviest tags conducted shorter and shallower dives with slower ascent rates than those equipped with lighter tags. Additionally, birds equipped with the heaviest tags increased resting time between dives, suggesting a need to recover from a greater physiological cost of diving when equipped. Our study is one of the few that describe acute tagging impacts on seabird diving behaviour and foraging effort, suggesting that deployments should be kept as short as possible to limit cumulative impacts. © The Author(s) 2025.en
dc.description.sponsorshipIrish Research Council (EPSPG/2019/469)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid5en
dc.identifier.citationClairbaux, M., Darby, J. H., Caulfield, E. and Jessopp, M. J. (2025) 'Acute impacts of biologging devices on the diving behaviour of Manx shearwaters', Animal Biotelemetry, 13(1), p.5. https://doi.org/10.1186/s40317-025-00399-0en
dc.identifier.doi10.1186/s40317-025-00399-0en
dc.identifier.issn20503385en
dc.identifier.issued1
dc.identifier.journaltitleAnimal Biotelemetryen
dc.identifier.urihttps://hdl.handle.net/10468/17267
dc.identifier.volume13
dc.language.isoenen
dc.publisherBioMed Central Ltden
dc.rights© 2025, the Author(s). Open Accessen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectBehavioural compensationen
dc.subjectBiotelemetryen
dc.subjectForaging behaviouren
dc.subjectSeabird trackingen
dc.subjectTag effectsen
dc.subjectTag weighten
dc.titleAcute impacts of biologging devices on the diving behaviour of Manx shearwatersen
dc.typeArticle (peer reviewed)en
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