La Tour du Valat

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The exception to the rule: retreating ice front makes Bewick's swans Cygnus columbianus bewickii migrate slower in spring than in autumn

Rascha J. M. Nuijten, Auteur ; Andrea Kolzsch, Auteur ; Jan A. van Gils, Auteur ; Bethany J. Hoye, Auteur ; Kees Oosterbeek, Auteur ; Peter P. de Vries, Auteur ; Marcel Klaassen, Auteur ; Bart A. Nolet, Auteur

Dans Journal of Avian Biology (45(2) MAR 2014)

In the vast majority of migratory bird species studied so far, spring migration has been found to proceed faster than autumn migration. In spring, selection pressures for rapid migration are purportedly higher, and migratory conditions such as f[...]

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