La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Duration of ‘peeks’ in ducks: how much time do Common Pochards Aythya ferina spend with an eye open while in a sleeping posture? (2020)
Titre original:	Duration of ‘peeks’ in ducks
Auteurs :	Ivana Novcic, Auteur ; Sara Krunić, Auteur ; Daliborka Stanković, Auteur ; Mark E. Hauber, Auteur
Type de document :	Article
Dans :	Bird Study (67(2) July, 2020)
Article en page(s) :	256-260
Résumé :	‘Peeks’, or keeping an eye open, in wintering Common Pochard Aythya ferina, while in a sleeping posture, were relatively brief, typically (66% of observations) lasting less than one second. However, in 37% of individuals some peeks lasted 10 s or more. Contrary to our prediction of lower anti-predatory vigilance rates in larger groups, there was a positive relationship between peek duration and the numbers of neighbours in a flock.
En ligne :	https://doi.org/10.1080/00063657.2020.1808590

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