{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T11:25:16Z","timestamp":1781090716186,"version":"3.54.1"},"reference-count":82,"publisher":"The Company of Biologists","issue":"23","license":[{"start":{"date-parts":[[2024,12,1]],"date-time":"2024-12-01T00:00:00Z","timestamp":1733011200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/www.biologists.com\/user-licence-1-1\/"}],"funder":[{"name":"European Union's Horizon 2020"},{"DOI":"10.13039\/100018694","name":"Marie Sklodowska-Curie Actions","doi-asserted-by":"crossref","award":["890284"],"award-info":[{"award-number":["890284"]}],"id":[{"id":"10.13039\/100018694","id-type":"DOI","asserted-by":"crossref"}]},{"name":"World Wildlife Fund UK"},{"DOI":"10.13039\/100000875","name":"The Pew Charitable Trusts","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100000875","id-type":"DOI","asserted-by":"crossref"}]},{"name":"French ministry of higher education and research"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,12,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Energy governs species' life histories and pace of living, requiring individuals to make trade-offs. However, measuring energetic parameters in the wild is challenging, often resulting in data collected from heterogeneous sources. This complicates comprehensive analysis and hampers transferability within and across case studies. We present a novel framework, combining information obtained from eco-physiology and biologging techniques, to estimate both energy expenditure and intake in 48 Ad\u00e9lie penguins (Pygoscelis adeliae) during the chick-rearing stage. We employed the machine learning algorithm random forest (RF) to predict accelerometry-derived metrics for feeding behaviour using depth data (our proxy for energy acquisition). We also built a time-activity model calibrated with doubly labelled water data to estimate energy expenditure. Using depth-derived time spent diving and amount of vertical movement in the sub-surface phase, we accurately predicted energy expenditure. Movement metrics derived from the RF algorithm deployed on depth data were able to accurately detect the same feeding behaviour predicted from accelerometry. The RF predicted accelerometry-estimated time spent feeding more accurately compared with historical proxies such as number of undulations or dive bottom duration. The proposed framework is accurate, reliable and simple to implement on data from biologging technology widely used on marine species. It enables coupling energy intake and expenditure, which is crucial to further assess individual trade-offs. Our work allows us to revisit historical data, to study how long-term environmental changes affect animal energetics.<\/jats:p>","DOI":"10.1242\/jeb.249201","type":"journal-article","created":{"date-parts":[[2024,10,25]],"date-time":"2024-10-25T05:25:47Z","timestamp":1729833947000},"source":"Crossref","is-referenced-by-count":4,"title":["Innovative use of depth data to estimate energy intake and expenditure in Ad\u00e9lie penguins"],"prefix":"10.1242","volume":"227","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9633-8935","authenticated-orcid":false,"given":"Benjamin","family":"Dupuis","sequence":"first","affiliation":[{"name":"Centre d'Etudes Biologiques de Chiz\u00e9, CNRS, La Rochelle Universit\u00e9 1 , UMR 7372 , 79360 Villiers-en-Bois ,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8947-3634","authenticated-orcid":false,"given":"Akiko","family":"Kato","sequence":"additional","affiliation":[{"name":"Centre d'Etudes Biologiques de Chiz\u00e9, CNRS, La Rochelle Universit\u00e9 1 , UMR 7372 , 79360 Villiers-en-Bois ,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6938-9670","authenticated-orcid":false,"given":"Olivia","family":"Hicks","sequence":"additional","affiliation":[{"name":"Centre d'Etudes Biologiques de Chiz\u00e9, CNRS, La Rochelle Universit\u00e9 1 , UMR 7372 , 79360 Villiers-en-Bois ,","place":["France"]},{"name":"School of Ocean Sciences 2 , , Menai Bridge LL59 5AB ,","place":["UK"]},{"name":"Bangor University 2 , , Menai Bridge LL59 5AB ,","place":["UK"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3599-7440","authenticated-orcid":false,"given":"Danuta M.","family":"Wisniewska","sequence":"additional","affiliation":[{"name":"Centre d'Etudes Biologiques de Chiz\u00e9, CNRS, La Rochelle Universit\u00e9 1 , UMR 7372 , 79360 Villiers-en-Bois ,","place":["France"]},{"name":"University of Southern Denmark 3 Sound Communication and Behavior Group, Department of Biology , , 5230 Odense M ,","place":["Denmark"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5559-4289","authenticated-orcid":false,"given":"Coline","family":"Marciau","sequence":"additional","affiliation":[{"name":"Centre d'Etudes Biologiques de Chiz\u00e9, CNRS, La Rochelle Universit\u00e9 1 , UMR 7372 , 79360 Villiers-en-Bois ,","place":["France"]},{"name":"Institute For Marine and Antarctic Studies, University of Tasmania 4 , Hobart, TAS 7001 ,","place":["Australia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2619-167X","authenticated-orcid":false,"given":"Frederic","family":"Angelier","sequence":"additional","affiliation":[{"name":"Centre d'Etudes Biologiques de Chiz\u00e9, CNRS, La Rochelle Universit\u00e9 1 , UMR 7372 , 79360 Villiers-en-Bois ,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6494-5300","authenticated-orcid":false,"given":"Yan","family":"Ropert-Coudert","sequence":"additional","affiliation":[{"name":"Centre d'Etudes Biologiques de Chiz\u00e9, CNRS, La Rochelle Universit\u00e9 1 , UMR 7372 , 79360 Villiers-en-Bois ,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8236-9332","authenticated-orcid":false,"given":"Marianna","family":"Chimienti","sequence":"additional","affiliation":[{"name":"Centre d'Etudes Biologiques de Chiz\u00e9, CNRS, La Rochelle Universit\u00e9 1 , UMR 7372 , 79360 Villiers-en-Bois ,","place":["France"]},{"name":"School of Ocean Sciences 2 , , Menai Bridge LL59 5AB ,","place":["UK"]},{"name":"Bangor University 2 , , Menai Bridge LL59 5AB ,","place":["UK"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"237","published-online":{"date-parts":[[2024,12,4]]},"reference":[{"key":"2024120408250047800_JEB249201C1","doi-asserted-by":"crossref","first-page":"172","DOI":"10.7312\/ainl12306-007","article-title":"The reoccupation period - chicks and breeding success","volume-title":"The Ad\u00e9lie Penguin: Bellwether of Climate Change","author":"Ainley","year":"2002"},{"key":"2024120408250047800_JEB249201C2","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1007\/978-3-031-33990-5_7","article-title":"Hot penguins: cold water","volume-title":"The Aquatic World of Penguins: Biology of Fish-Birds","author":"Ainley","year":"2023"},{"key":"2024120408250047800_JEB249201C3","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1186\/s40462-022-00361-2","article-title":"Track and dive-based movement metrics do not predict the number of prey encountered by a marine predator","volume":"11","author":"Allegue","year":"2023","journal-title":"Mov. 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