La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Daily patterns of nest visits are correlated with ambient temperature in the Northern Wheatear
Auteurs :	Matthew Low, Auteur ; Sonke Eggers, Auteur ; Debora Arlt, Auteur ; Tomas Part, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (149(4) OCT 2008)
Article en page(s) :	515-519
Langues:	Anglais
Résumé :	The diurnal pattern of foraging behaviour in birds is commonly linked to the risk of starvation and predation. During the breeding season, when offspring place additional demands on the quantity of food adults need to collect, diurnal foraging patterns may be influenced to a greater extent by food availability because adults need to balance starvation-predation risks not only for themselves but also their offspring. We used data-loggers to measure diurnal variation in rates of nest visits to 7- to 10-day-old nestlings of the insectivorous Northern Wheatear Oenanthe oenanthe in Swedish farmland habitat. Adults provisioned the nestlings with food for an average 19.5 h each day (n =

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