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Título: | Spatial Heterogeneity in Resource Distribution Promotes Facultative Sociality in Two Trans-Saharan Migratory Birds |
Autor: | Cortés-Avizanda, Ainara CSIC ORCID; Almaraz, Pablo CSIC ORCID ; Carrete, Martina CSIC ORCID; Sánchez-Zapata, José A.; Delgado Huertas, Antonio CSIC ORCID ; Hiraldo, Fernando CSIC ORCID; Donázar, José A. CSIC ORCID | Fecha de publicación: | 22-jun-2011 | Editor: | Public Library of Science | Citación: | PLoS ONE 6(6): e21016 (2011) | Resumen: | Migrant populations must cope not only with environmental changes in different biomes, but also with the continuous constraints imposed by human-induced changes through landscape transformation and resource patchiness. Theoretical studies suggest that changes in food distribution can promote changes in the social arrangement of individuals without apparent adaptive value. Empirical research on this subject has only been performed at reduced geographical scales and/or for single species. However, the relative contribution of food patchiness and predictability, both in space and time, to abundance and sociality can vary among species, depending on their degree of flexibility. | Versión del editor: | http://dx.doi.org/10.1371/journal.pone.0021016 | URI: | http://hdl.handle.net/10261/47536 | DOI: | 10.1371/journal.pone.0021016 | ISSN: | 0027-8424 | E-ISSN: | 1091-6490 |
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