Of great tits and fleas: sleep baby sleep

Details

Serval ID
serval:BIB_EF53BA319DD2
Type
Article: article from journal or magazin.
Collection
Publications
Title
Of great tits and fleas: sleep baby sleep
Journal
Animal Behaviour
Author(s)
Christe P., Richner H., Oppliger Anne
ISSN
0003-3472
Publication state
Published
Issued date
1996
Peer-reviewed
Oui
Volume
52
Number
6
Pages
1087-1092
Language
english
Abstract
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.
Keywords
BILL MORPHOLOGY, PARUS-MAJOR, ECTOPARASITE, BIRDS
Web of science
Create date
24/01/2008 20:14
Last modification date
20/08/2019 17:17
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