Beyond dive shape: the identification of fine-scale vertical movements reveal within-dive behavioural structure in a pursuit-diving seabird

Simple item page
dc.contributor.authorDedieu, Astrid
dc.contributor.authorJessopp, Mark
dc.contributor.authorCox, Sam L.
dc.contributor.funderSustainable Energy Authority of Ireland
dc.contributor.funderHorizon Europe
dc.date.accessioned2026-07-23T10:50:03Z
dc.date.available2026-07-23T10:50:03Z
dc.date.issued2026-06-22
dc.description© 2026, the Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/
dc.description.abstractUnderstanding how diving predators exploit prey in dynamic marine environments provides insight into their foraging strategies, energetic trade-offs, and capacity to adapt to changing conditions. While traditional classifications of dive shape have provided valuable albeit coarse insights, fine-scale behaviours embedded within dives, such as prey encounter/capture attempts, can be overlooked. We used time-depth recorders (TDR) deployed on Atlantic puffins (Fratercula arctica) between 2021 and 2025 on Skellig Michael, County Kerry, Ireland (51.7707°N, 10.5405°W) to detect fine-scale vertical undulations (“wiggles”) in dives as proxies for prey-capture attempts. We used a broken-stick model to divide dives into segments and built a custom function to identify wiggles within segments. Wiggle occurrence differed significantly among dive phases (p < 0.001). Wiggles were most frequent during the ascent and bottom phases. Less than 10% of wiggles occurred during descent phases, despite descent making up 30.3% of the time spent diving. Our findings indicate that puffins, like other pursuit-diving predators, forage not only during the bottom phase but extensively while surfacing. More broadly, the integration of broken-stick segmentation with wiggle detection provides a simple, transferable framework for quantifying prey-capture attempts across pursuit-diving predators. This approach enhances inference from TDR data and contributes to a comparative understanding of how diving predators partition foraging effort within dives.en
dc.description.sponsorshipSustainable Energy Authority of Ireland|21/RDD/670 Horizon Europe|101029802
dc.format.extent9
dc.format.extent1134485
dc.format.extent86538
dc.format.extent25780664
dc.format.extent13946
dc.identifier.articleid126
dc.identifier.authororcidDedieu, Astrid
dc.identifier.authororcidJessopp, Mark§0000-0002-2692-3730
dc.identifier.authororcidCox, Sam L.§0000-0002-5409-4458
dc.identifier.citationDedieu, A, Jessopp, M & Cox, S L 2026, 'Beyond dive shape: the identification of fine-scale vertical movements reveal within-dive behavioural structure in a pursuit-diving seabird', Marine Biology, vol. 173, no. 8, 126, pp. 1-9. https://doi.org/10.1007/s00227-026-04878-7
dc.identifier.doi10.1007/s00227-026-04878-7
dc.identifier.endpage9
dc.identifier.issn0025-3162
dc.identifier.issued8
dc.identifier.journaltitleMarine Biology
dc.identifier.otherORCID: /0000-0002-2692-3730/work/221645269
dc.identifier.otherORCID: /0000-0002-5409-4458/work/221645576
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/19088
dc.identifier.urlhttps://www.scopus.com/pages/publications/105042427781
dc.identifier.volume173
dc.language.isoeng
dc.rightscc_by
dc.subjectAtlantic puffin
dc.subjectAuk
dc.subjectDive patterns
dc.subjectForaging
dc.subjectSeabird
dc.subjectTDR
dc.subjectWiggles
dc.subject[BEES]
dc.subjectEcology, Evolution, Behavior and Systematics
dc.subjectAquatic Science
dc.subjectEcology
dc.titleBeyond dive shape: the identification of fine-scale vertical movements reveal within-dive behavioural structure in a pursuit-diving seabirden
dc.typeArticle (Peer reviewed)
Files
Original bundle
Now showing 1 - 4 of 4
Thumbnail Image
Name:
227_2026_4878_MOESM3_ESM.txt
Size:
13.62 KB
Format:
Plain Text
Description:
Supplementary file 3
Download
Thumbnail Image
Name:
227_2026_4878_MOESM2_ESM.csv
Size:
24.59 MB
Format:
Comma-Separated Values
Description:
Supplementary file 2
Download
Thumbnail Image
Name:
s00227-026-04878-7.pdf
Size:
1.08 MB
Format:
Adobe Portable Document Format
Description:
Published Version
Download
Thumbnail Image
Name:
227_2026_4878_MOESM1_ESM.txt
Size:
84.51 KB
Format:
Plain Text
Description:
Supplementary file 1
Download
Collections
School of Biological, Earth and Environmental Sciences