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Título

Costs of migratory decisions: A comparison across eight white stork populations

AutorFlack, Andrea; Blas, Julio ; Wikelski, Martin
Palabras claveAnimal movement
Migration costs
Energy expenditure
White storks
High-resolution GPS
Aacceleration
Lifetime
Fecha de publicación1-ene-2016
EditorAmerican Association for the Advancement of Science
CitaciónScience Advances 2(1): e1500931 (2016)
ResumenAnnual migratory movements can range from a few tens to thousands of kilometers, creating unique energetic requirements for each specific species and journey. Even within the same species, migration costs can vary largely because of flexible, opportunistic life history strategies. We uncover the large extent of variation in the lifetime migratory decisions of young white storks originating from eight populations. Not only did juvenile storks differ in their geographically distinct wintering locations, their diverse migration patterns also affected the amount of energy individuals invested for locomotion during the first months of their life. Overwintering in areas with higher human population reduced the stork’s overall energy expenditure because of shorter daily foraging trips, closer wintering grounds, or a complete suppression of migration. Because migrants can change ecological processes in several distinct communities simultaneously, understanding their life history decisions helps not only to protect migratory species but also to conserve stable ecosystems.
DescripciónFlack, Andrea et al.
Versión del editorhttps://doi.org/10.1126/sciadv.1500931
URIhttp://hdl.handle.net/10261/143379
DOI10.1126/sciadv.1500931
ISSN2375-2548
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