Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornaments
Summary: 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. Us...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004225007734 |
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| author | Enrique González-Bernardo Jesús Martínez-Padilla Carlos Camacho Marta E. García del Castillo Jaime Potti David Canal |
| author_facet | Enrique González-Bernardo Jesús Martínez-Padilla Carlos Camacho Marta E. García del Castillo Jaime Potti David Canal |
| author_sort | Enrique González-Bernardo |
| collection | DOAJ |
| description | Summary: 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. |
| format | Article |
| id | doaj-art-07df52e85cd845a4b895f211a36d9cba |
| institution | DOAJ |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-07df52e85cd845a4b895f211a36d9cba2025-08-20T02:56:09ZengElsevieriScience2589-00422025-05-0128511251210.1016/j.isci.2025.112512Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornamentsEnrique González-Bernardo0Jesús Martínez-Padilla1Carlos Camacho2Marta E. García del Castillo3Jaime Potti4David Canal5Department of Zoology, Faculty of Sciences, University of Granada, Fuente Nueva s/n, 18071 Granada, Spain; University of Oviedo, San Francisco, 3, Oviedo, 33003 Asturias, Spain; Corresponding authorDepartment of Biological Conservation and Ecosystem Restoration, Pyrenean Institute of Ecology (IPE-CSIC), Nuestra Señora de la Victoria, 16, 22700 Jaca, SpainDepartment of Ecology and Evolution, Estación Biológica de Doñana (EBD-CSIC), Américo Vespucio, 26, 41092 Seville, SpainComplutense University of Madrid, José Antonio Novais, 12, 28040 Madrid, SpainDepartment of Ecology and Evolution, Estación Biológica de Doñana (EBD-CSIC), Américo Vespucio, 26, 41092 Seville, SpainDepartment of Evolutionary Ecology, National Museum of Natural Sciences (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006 Madrid, Spain; Corresponding authorSummary: 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.http://www.sciencedirect.com/science/article/pii/S2589004225007734Ecology |
| spellingShingle | Enrique González-Bernardo Jesús Martínez-Padilla Carlos Camacho Marta E. García del Castillo Jaime Potti David Canal Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornaments iScience Ecology |
| title | Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornaments |
| title_full | Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornaments |
| title_fullStr | Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornaments |
| title_full_unstemmed | Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornaments |
| title_short | Sex- and trait-specific contribution of individual- and population-level processes to age-related changes in multiple plumage ornaments |
| title_sort | sex and trait specific contribution of individual and population level processes to age related changes in multiple plumage ornaments |
| topic | Ecology |
| url | http://www.sciencedirect.com/science/article/pii/S2589004225007734 |
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