2026-06-28T20:10:48Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/1226312025-07-19T00:16:09Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author González-Bernardo, Enrique author Martínez-Padilla, Jesús author Camacho, Carlos author García del Castillo, Marta E. author Potti, Jaime author Canal, David 2025-07-18T14:52:10Z 2025-07-18T14:52:10Z 2025-04-24 González-Bernardo, E., Martínez-Padilla, J., Camacho, C., García del Castillo, M. E., Potti, J., & Canal, D. (2025). Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornaments. iScience, 28(5), 112512. https://doi.org/10.1016/j.isci.2025.112512 2589-0042 10.1016/j.isci.2025.112512 https://hdl.handle.net/20.500.14352/122631 https://doi.org/10.1016/j.isci.2025.112512 Individuals experience changes in multiple traits across their lifespan, often peaking before senescence-driven declines. Many species display secondary sexual traits that can vary with age due to physiological and selective processes, influencing individual fitness and sexual selection. Using 13 years of longitudinal data from a pied flycatcher (Ficedula hypoleuca) population, we analyzed age-related variation in wing and forehead patches in both sexes. Wing patch size increased with age due to both within- and between-individual effects, with sex-specific patterns. Forehead patch size showed sex-dependent age effects: quadratic in females, linear in males, with only males exhibiting within-individual changes. In females, forehead patch occurrence followed a quadratic age pattern, influenced by selective (dis)appearance and reproductive timing. These results show that age-related ornament expression arises from different processes across traits and sexes, highlighting potential trade-offs between reproduction and ornamentation. This study underscores the role of both sexes' ornaments in selection and life-history strategies. eng Attribution-NonCommercial-NoDerivatives 4.0 International Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornaments journal article 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URL https://docta.ucm.es/bitstreams/4b248b09-6f11-41a5-b692-115212ea3039/download File MD5 792584ebbaf16614a3d2725790475e23 7695596 application/pdf 1-s2.0-S2589004225007734-main.pdf