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Título: | Compensation for wind drift during raptor migration improves with age through mortality selection |
Autor: | Sergio, Fabrizio CSIC ORCID; Barbosa, Jomar M; Tanferna, Alessandro CSIC ORCID ; Silva, Rafa; Blas, Julio CSIC ORCID ; Hiraldo, Fernando CSIC ORCID | Fecha de publicación: | jul-2022 | Resumen: | Each year, billions of flying and swimming migrants negotiate the challenging displacement imposed by travelling through a flowing medium. However, little is known about how the ability to cope with drift improves through life and what mechanisms drive its development. We examined 3,140 days of migration by 90 GPS-tagged raptorial black kites (Milvus migrans) aged 1-27 years to show that the ability to compensate for lateral drift develops gradually through many more years than previously appreciated. Drift negotiation was under strong selective pressure, with inferior navigators subject to increased mortality. This progressively selected for adults able to compensate for current cross flows and for previously accumulated drift in a flexible, context-dependent and risk-dependent manner. Displacements accumulated en route carried over to shape the wintering distribution of the population. For many migrants, migratory journeys by younger individuals represent concentrated episodes of trait selection that shape adult populations and mediate their adaptation to climate change. | Versión del editor: | https://doi.org/10.1038/s41559-022-01776-1 | URI: | http://hdl.handle.net/10261/340930 | DOI: | 10.1038/s41559-022-01776-1 |
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5_Sergio 2022_Compensation Wind Drift_NatEcolEvol.pdf | Artículo principal | 5,01 MB | Adobe PDF | Visualizar/Abrir |
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