La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Spring phenology and timing of breeding in short-distance migrant birds: phenotypic responses and offspring recruitment patterns in common goldeneyes
Auteurs :	Robert G. Clark, Auteur ; Hannu Poysa, Auteur ; Pentti Runko, Auteur ; Antti Paasivaara, Auteur
Type de document :	Article
Dans :	Journal of Avian Biology (45(5) SEP 2014)
Article en page(s) :	457-465
Langues:	Anglais
Résumé :	Understanding how organisms adjust breeding dates to exploit resources that affect fitness can provide insights into impacts of climate change on avian demography. For instance, mismatches have been reported in long-distance migrant bird species when environmental cues experienced during spring migration are decoupled from conditions on breeding grounds. Short-distance migrant bird species that store reproductive nutrients prior to breeding may avoid or buffer adverse phenological effects. Furthermore, reduced short-term reproductive success could be offset by higher future recruitment of surviving offspring. We evaluated whether recruitment of locally-hatched female offspring was related to hatching date alone or strength of mismatched breeding date for 405 individually-marked adult female common goldeneyes Bucephala clangula (a short-distance migrant) and their ducklings from a site in central Finland where ice-out date has advanced by approximate to 2 weeks over

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