{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T14:43:58Z","timestamp":1787582638388,"version":"build-2736575974"},"reference-count":92,"publisher":"The Royal Society","issue":"7","license":[{"start":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T00:00:00Z","timestamp":1783468800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Sex differences in metabolic responses of animals performing natural behaviours remain poorly understood, particularly under free-living conditions. Here, we examined how locomotor effort relates to mitochondrial metabolism in red blood cells in homing pigeons (Columba livia) by combining biologging of flight behaviour with measurements of mitochondrial respiration taken before and immediately after flight. Birds were equipped with global positioning system (GPS) loggers and tri-axial accelerometers, and movement effort was quantified using vectorial dynamic body acceleration (VeDBA). Flight was associated with a marked increase in mitochondrial respiration linked to aerobic energy production in both sexes, with increases ranging from 58.2% to 87.3% across traits. Males and females showed similar flight speeds, flight durations and social flight behaviour. Nevertheless, females showed higher VeDBA and higher post-flight mitochondrial aerobic metabolism than males, indicating sex differences in both mechanical and physiological responses. The relationship between VeDBA and post-flight mitochondrial metabolism was also sex-specific: as predicted, higher VeDBA was associated with higher ROUTINE and OXPHOS in males, but with lower values in females, a pattern for which we discuss possible physiological and behavioural explanations. Independent of flight status, males exhibited higher mitochondrial coupling efficiency than females, which was explained by their higher body mass. Together, these results provide evidence that flight effort was mirrored in blood mitochondrial metabolism and show that similar flight performance can mask potential sex-specific energetic signatures.<\/jats:p>","DOI":"10.1098\/rsbl.2026.0225","type":"journal-article","created":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T00:07:55Z","timestamp":1783469275000},"source":"Crossref","is-referenced-by-count":1,"title":["Similar flight performance but sex-specific mitochondrial responses in free-flying pigeons"],"prefix":"10.1098","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4264-8062","authenticated-orcid":false,"given":"Stefania","family":"Casagrande","sequence":"first","affiliation":[{"name":"Max Planck Institute for Biological Intelligence 1 , Seewiesen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8656-594X","authenticated-orcid":false,"given":"Agustina","family":"G\u00f3mez-Laich","sequence":"additional","affiliation":[{"name":"Departamento de Ecolog\u00eda and Instituto de Ecolog\u00eda, Gen\u00e9tica y Evoluci\u00f3n de Buenos Aires (IEGEBA), CONICET, Universidad de Buenos Aires 2 , Buenos Aires, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9601-9675","authenticated-orcid":false,"given":"Giacomo","family":"Dell'Omo","sequence":"additional","affiliation":[{"name":"Ornis Italica 3 , Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"175","published-online":{"date-parts":[[2026,7,8]]},"reference":[{"key":"2026082410060592400_RSBL20260225C1","doi-asserted-by":"crossref","first-page":"19052","DOI":"10.1073\/pnas.0800375105","article-title":"A movement ecology paradigm for unifying organismal movement research","volume":"105","author":"Nathan","year":"2008","journal-title":"Proc. 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Biol."},{"key":"2026082410060592400_RSBL20260225C12","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1186\/2046-7648-3-19","article-title":"Skeletal muscle energy metabolism in environmental hypoxia: climbing towards consensus","volume":"3","author":"Horscroft","year":"2014","journal-title":"Extrem. Physiol. Med."},{"key":"2026082410060592400_RSBL20260225C13","first-page":"2691","article-title":"Mitochondrial phenotypic flexibility enhances energy savings during winter fast in king penguin chicks","volume":"217","author":"Monternier","year":"2014","journal-title":"J. Exp. Biol."},{"key":"2026082410060592400_RSBL20260225C14","doi-asserted-by":"crossref","first-page":"a029678","DOI":"10.1101\/cshperspect.a029678","article-title":"The bioenergetics of exercise","volume":"8","author":"Neufer","year":"2018","journal-title":"Cold Spring Harb. Perspect. 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Physiol."},{"key":"2026082410060592400_RSBL20260225C18","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1186\/s13293-018-0193-7","article-title":"Sex-associated differences in mitochondrial function in human peripheral blood mononuclear cells (PBMCs) and brain","volume":"9","author":"Silaidos","year":"2018","journal-title":"Biol. Sex Differ."},{"key":"2026082410060592400_RSBL20260225C19","doi-asserted-by":"crossref","first-page":"1","DOI":"10.3389\/fphys.2018.01133","article-title":"Superior intrinsic mitochondrial respiration in women than in men","volume":"9","author":"Cardinale","year":"2018","journal-title":"Front. Phys."},{"key":"2026082410060592400_RSBL20260225C20","doi-asserted-by":"crossref","first-page":"741","DOI":"10.1093\/czoolo\/56.6.741","article-title":"Sources and significance of variation in basal, summit and maximal metabolic rates in birds","volume":"56","author":"McKechnie","year":"2010","journal-title":"Curr. Zool."},{"key":"2026082410060592400_RSBL20260225C21","doi-asserted-by":"crossref","first-page":"330","DOI":"10.1111\/j.1365-2435.2009.01646.x","article-title":"Avian seasonal metabolic variation in a subtropical desert: basal metabolic rates are lower in winter than in summer","volume":"24","author":"Smit","year":"2010","journal-title":"Function"},{"key":"2026082410060592400_RSBL20260225C22","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1038\/s41467-017-02514-z","article-title":"Metabolic rate evolves rapidly and in parallel with the pace of life history","volume":"9","author":"Auer","year":"2018","journal-title":"Nat. Commun."},{"key":"2026082410060592400_RSBL20260225C23","doi-asserted-by":"crossref","first-page":"298","DOI":"10.1111\/jfb.12699","article-title":"Does individual variation in metabolic phenotype predict fish behaviour and performance?","volume":"88","author":"Metcalfe","year":"2016","journal-title":"J. Fish Biol."},{"key":"2026082410060592400_RSBL20260225C24","doi-asserted-by":"crossref","first-page":"336","DOI":"10.1111\/brv.70085","article-title":"Body surface temperatures as biomarkers of physiological environmental adaptation in wild birds and mammals","volume":"101","author":"Jerem","year":"2026","journal-title":"Biol. Rev."},{"key":"2026082410060592400_RSBL20260225C25","doi-asserted-by":"crossref","first-page":"103","DOI":"10.1007\/978-1-61779-382-0_3","article-title":"High-resolution respirometry: OXPHOS protocols for human cells and permeabilized fibers from small biopsies of human muscle","volume-title":"Mitochondrial bioenergetics. 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Metab."},{"key":"2026082410060592400_RSBL20260225C28","doi-asserted-by":"crossref","first-page":"1","DOI":"10.14814\/phy2.14489","article-title":"Low-intensity exercise stimulates bioenergetics and increases fat oxidation in mitochondria of blood mononuclear cells from sedentary adults","volume":"8","author":"Liepinsh","year":"2020","journal-title":"Physiol. Rep."},{"key":"2026082410060592400_RSBL20260225C29","doi-asserted-by":"crossref","first-page":"100835","DOI":"10.1016\/j.mam.2019.100835","article-title":"Blood-based bioenergetics: an emerging translational and clinical tool","volume":"71","author":"Braganza","year":"2020","journal-title":"Mol. Aspects Med."},{"key":"2026082410060592400_RSBL20260225C30","doi-asserted-by":"crossref","first-page":"7317251","DOI":"10.1155\/2017\/7317251","article-title":"Blood-based bioenergetic profiling reflects differences in brain bioenergetics and metabolism","volume":"2017","author":"Tyrrell","year":"2017","journal-title":"Oxid. Med. Cell. Longev."},{"key":"2026082410060592400_RSBL20260225C31","doi-asserted-by":"crossref","first-page":"1394","DOI":"10.1093\/gerona\/glu096","article-title":"Respirometric profiling of muscle mitochondria and blood cells are associated with differences in gait speed among community-dwelling older adults","volume":"70","author":"Tyrrell","year":"2015","journal-title":"J. Gerontol. A Biol. Sci. Med. Sci."},{"key":"2026082410060592400_RSBL20260225C32","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1016\/j.redox.2016.09.009","article-title":"Blood cell respirometry is associated with skeletal and cardiac muscle bioenergetics: implications for a minimally invasive biomarker of mitochondrial health","volume":"10","author":"Tyrrell","year":"2016","journal-title":"Redox Biol."},{"key":"2026082410060592400_RSBL20260225C33","doi-asserted-by":"crossref","first-page":"829","DOI":"10.1038\/s42255-020-0262-1","article-title":"Exercise and cardiac health: physiological and molecular insights","volume":"2","author":"Moreira","year":"2020","journal-title":"Nat. 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Lett."},{"key":"2026082410060592400_RSBL20260225C36","doi-asserted-by":"crossref","first-page":"20250521","DOI":"10.1098\/rsbl.2025.0521","article-title":"Within-individual changes in mitochondrial DNA copy number across the life course and links to individual performance","volume":"22","author":"Salm\u00f3n","year":"2026","journal-title":"Biol. Lett."},{"key":"2026082410060592400_RSBL20260225C37","doi-asserted-by":"crossref","first-page":"108321","DOI":"10.1016\/j.isci.2023.108321","article-title":"Blood mitochondrial metabolism as a proxy for organismal energy metabolism","volume":"26","author":"Casagrande","year":"2023","journal-title":"iScience"},{"key":"2026082410060592400_RSBL20260225C38","doi-asserted-by":"crossref","first-page":"691633","DOI":"10.3389\/fphys.2021.691633","article-title":"Inferring whole-organism metabolic rate from red blood cells in birds","volume":"12","author":"Malkoc","year":"2021","journal-title":"Front. Physiol."},{"key":"2026082410060592400_RSBL20260225C39","doi-asserted-by":"crossref","first-page":"bio060302","DOI":"10.1242\/bio.060302","article-title":"Permeabilization status affects the relationship between resting metabolic rate and mitochondrial respiration in great tit blood cells","volume":"13","author":"Thoral","year":"2024","journal-title":"Biol. Open"},{"key":"2026082410060592400_RSBL20260225C40","doi-asserted-by":"crossref","first-page":"222","DOI":"10.1126\/science.177.4045.222","article-title":"Locomotion: energy cost of swimming, flying, and running","volume":"177","author":"Schmidt-Nielsen","year":"1971","journal-title":"Science"},{"key":"2026082410060592400_RSBL20260225C41","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1371\/journal.pbio.3000299","article-title":"Birds invest wingbeats to keep a steady head and reap the ultimate benefits of flying together","volume":"17","author":"Taylor","year":"2019","journal-title":"PLoS Biol."},{"key":"2026082410060592400_RSBL20260225C42","doi-asserted-by":"crossref","first-page":"363","DOI":"10.1038\/nature01284","article-title":"Comparative power curves in bird flight","volume":"421","author":"Tobalske","year":"2003","journal-title":"Nature"},{"key":"2026082410060592400_RSBL20260225C43","doi-asserted-by":"crossref","first-page":"20132780","DOI":"10.1098\/rspb.2013.2780","article-title":"Metabolic \u2018engines\u2019 of flight drive genome size reduction in birds","volume":"281","author":"Wright","year":"2014","journal-title":"Proc. R. Soc. B"},{"key":"2026082410060592400_RSBL20260225C44","doi-asserted-by":"crossref","first-page":"e0201291","DOI":"10.1371\/journal.pone.0201291","article-title":"Behavioural traits of individual homing pigeons, Columba livia F. domestica, in their homing flights","volume":"13","author":"Schiffner","year":"2018","journal-title":"PLoS ONE"},{"key":"2026082410060592400_RSBL20260225C45","doi-asserted-by":"crossref","first-page":"813","DOI":"10.1111\/2041-210X.13804","article-title":"Ecological inference using data from accelerometers needs careful protocols","volume":"13","author":"Garde","year":"2022","journal-title":"Methods Ecol. Evol."},{"key":"2026082410060592400_RSBL20260225C46","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1016\/0300-9629(71)90074-0","article-title":"Body temperatures in pigeons and budgerigars during sustained flight","volume":"39","author":"Aulie","year":"1971","journal-title":"Comp. Biochem. Physiol. A Physiol."},{"key":"2026082410060592400_RSBL20260225C47","doi-asserted-by":"crossref","first-page":"20250031","DOI":"10.1098\/rsbl.2025.0031","article-title":"Pigeons in a flock go cheap: a re-evaluation of the energetics of flying in cluster flocks","volume":"21","author":"Bishop","year":"2025","journal-title":"Biol. Lett."},{"key":"2026082410060592400_RSBL20260225C48","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1007\/s00114-019-1641-x","article-title":"When flocking is costly: reduced cluster-flock density over long-duration flight in pigeons","volume":"106","author":"Sankey","year":"2019","journal-title":"Sci. Nat."},{"key":"2026082410060592400_RSBL20260225C49","doi-asserted-by":"crossref","first-page":"1651","DOI":"10.1242\/jeb.038109","article-title":"Wing and body kinematics of takeoff and landing flight in the pigeon (Columba livia)","volume":"213","author":"Berg","year":"2010","journal-title":"J. Exp. Biol."},{"key":"2026082410060592400_RSBL20260225C50","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s40462-024-00479-5","article-title":"Energy supply during nocturnal endurance flight of migrant birds: effect of energy stores and flight behaviour","volume":"12","author":"Jenni-Eiermann","year":"2024","journal-title":"Mov. Ecol."},{"key":"2026082410060592400_RSBL20260225C51","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1242\/jeb.71.1.7","article-title":"Respiratory and cardiovascular responses of the pigeon to sustained level flight in a wind-tunnel","volume":"71","author":"Butler","year":"1977","journal-title":"J. Exp. Biol."},{"key":"2026082410060592400_RSBL20260225C52","doi-asserted-by":"crossref","first-page":"77","DOI":"10.1007\/BF00301171","article-title":"Metabolic responses of homing pigeons to flight and subsequent recovery","volume":"166","author":"Schwilch","year":"1996","journal-title":"J. Comp. Physiol. B"},{"key":"2026082410060592400_RSBL20260225C53","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1007\/BF00261668","article-title":"Effects of flight on blood parameters in homing pigeons","volume":"163","author":"Bordel","year":"1993","journal-title":"J. Comp. Physiol. B"},{"key":"2026082410060592400_RSBL20260225C54","doi-asserted-by":"crossref","first-page":"400","DOI":"10.1055\/s-2007-1011836","article-title":"Flight effects on plasma glucose, lactate, catecholamines and corticosterone in homing pigeons","volume":"19","author":"Viswanathan","year":"1987","journal-title":"Horm. Metab. Res."},{"key":"2026082410060592400_RSBL20260225C55","first-page":"3734","article-title":"Intense flight and endotoxin injection elicit similar effects on leukocyte distributions but dissimilar effects on plasma-based immunological indices in pigeons","volume":"6","author":"Matson","year":"2012","journal-title":"J. Exp. Biol."},{"key":"2026082410060592400_RSBL20260225C56","doi-asserted-by":"crossref","first-page":"377","DOI":"10.1242\/jeb.012856","article-title":"Long flights and age affect oxidative status of homing pigeons (Columba livia)","volume":"211","author":"Costantini","year":"2008","journal-title":"J. Exp. Biol."},{"key":"2026082410060592400_RSBL20260225C57","doi-asserted-by":"crossref","first-page":"1203","DOI":"10.1111\/1365-2435.13074","article-title":"Energetic fitness: field metabolic rates assessed via 3D accelerometry complement conventional fitness metrics","volume":"32","author":"Gr\u00e9millet","year":"2018","journal-title":"Funct. Ecol."},{"key":"2026082410060592400_RSBL20260225C58","first-page":"1875","article-title":"Validating accelerometry estimates of energy expenditure across behaviours using heart rate data in a free-living seabird","volume":"220","author":"Hicks","year":"2017","journal-title":"J. Exp. Biol."},{"key":"2026082410060592400_RSBL20260225C59","doi-asserted-by":"crossref","first-page":"581","DOI":"10.1038\/s41569-021-00522-7","article-title":"Smart wearable devices in cardiovascular care: where we are and how to move forward","volume":"18","author":"Bayoumy","year":"2021","journal-title":"Nat. Rev. Cardiol."},{"key":"2026082410060592400_RSBL20260225C60","doi-asserted-by":"crossref","first-page":"4312","DOI":"10.1038\/s41467-021-24173-x","article-title":"Sensing leg movement enhances wearable monitoring of energy expenditure","volume":"12","author":"Slade","year":"2021","journal-title":"Nat. Commun."},{"key":"2026082410060592400_RSBL20260225C61","doi-asserted-by":"crossref","first-page":"20120919","DOI":"10.1098\/rsbl.2012.0919","article-title":"Accelerometry predicts daily energy expenditure in a bird with high activity levels","volume":"9","author":"Elliott","year":"2013","journal-title":"Biol. Lett."},{"key":"2026082410060592400_RSBL20260225C62","doi-asserted-by":"crossref","first-page":"17884","DOI":"10.1073\/pnas.1907360117","article-title":"Physical limits of flight performance in the heaviest soaring bird","volume":"117","author":"Williams","year":"2020","journal-title":"Proc. Natl Acad. Sci. USA"},{"key":"2026082410060592400_RSBL20260225C63","doi-asserted-by":"crossref","first-page":"20201744","DOI":"10.1098\/rspb.2020.0744","article-title":"Dietary antioxidants attenuate the endocrine stress response during long-duration flight of a migratory bird: anthocyanins lower corticosterone rise","volume":"287","author":"Casagrande","year":"2020","journal-title":"Proc. R. Soc. 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