La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Cold weather events provoke egg ejection behaviour in open-nesting passerines (2019)
Auteurs :	Dmitry Shitikov, Auteur ; Stanislav Samsonov, Auteur ; Tatiana Makarova, Auteur
Type de document :	Article
Dans :	Ibis (161(2) April, 2019)
Article en page(s) :	441-446
Langues:	Anglais
Mots-clés:	Booted Warbler ; Iduna caligata ; Motacilla flava ; Saxicola rubetra ; Western Yellow Wagtail ; Whinchat ; clutch size adjustment
Résumé :	We analysed 25 conspecific egg ejection events from a large sample of nests (n = 762) of three passerine species. In two species, most of the events could not be explained by intraspecific brood parasitism or nest sanitation behaviour. At least some of these cases were behavioural responses to unfavourable weather conditions in the spring of 2017. We conclude that clutch size adjustment through egg ejection may be more widespread among passerines than previously thought.
En ligne :	https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.12695

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