Of great tits and fleas: sleep baby sleep

Détails

ID Serval
serval:BIB_EF53BA319DD2
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Of great tits and fleas: sleep baby sleep
Périodique
Animal Behaviour
Auteur(s)
Christe P., Richner H., Oppliger Anne
ISSN
0003-3472
Statut éditorial
Publié
Date de publication
1996
Peer-reviewed
Oui
Volume
52
Numéro
6
Pages
1087-1092
Langue
anglais
Résumé
Many bird parasites reduce their hosts' fitness and, as a consequence, anti-parasite behaviour such as preening and nest sanitation has evolved. These activities are time consuming and, during the day, compete directly with time devoted to foraging and food provisioning to nestlings. Moreover, infested hosts may have to allocate extra time to foraging in order to compensate for the energy loss that ectoparasites impose on the nestlings and parents. Alternatively, brooding females could, at the expense of sleeping, allocate more time to preening and nest sanitation at night. If sleeping has a short-term restoring function, one may then expect a reduction in feeding efficiency of sleep-deprived females. In this study, the effect of a haematophagous ectoparasite, the hen flea, on the activity budgets of breeding female great tits during the day and at night was investigated experimentally. Time allocated to nest sanitation increased only slightly from 0.6 % of daytime in ectoparasite-free nests to 2.8% of daytime in infested nests, thus demonstrating the higher priority given to food provisioning than parasite control. Females in infested nests reduced their sleeping time significantly (73.5% of night-time in parasite-free nests versus 48.1% in infested nests). The time freed from the reduction of sleeping time was mainly used for nest sanitation (8.3% of night-time in parasite-free nests versus 27.1% in infested nests). Despite this strong decrease in sleeping time, there was no effect of ectoparasites on the females' rate of food provisioning to nestlings.
Mots-clé
BILL MORPHOLOGY, PARUS-MAJOR, ECTOPARASITE, BIRDS
Web of science
Création de la notice
24/01/2008 20:14
Dernière modification de la notice
20/08/2019 17:17
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