NDLI: Is female promiscuity constrained by the presence of her social mate? An experiment with bluethroats Luscinia svecica

Content Provider	Springer Nature Link
Author	Johnsen, Arild Pärn, Henrik Fossøy, Frode Kleven, Oddmund Laskemoen, Terje Lifjeld, Jan T.
Copyright Year	2008
Abstract	Extra-pair paternity is common in birds and much research has focussed on the selective advantage of extra-pair matings for both sexes. In contrast, little attention has been given to the fact that in most species the majority of offspring are sired by the social male. We investigated whether extra-pair matings of female bluethroats (Luscinia svecica) are constrained by the presence of the pair male, by detaining males in cages on their territories for one morning during the peak of female fertility. The proportion of offspring sired by extra-pair males was higher in broods where males had been detained (35%) than in control broods (16%), while the proportion of broods that had at least one extra-pair offspring did not differ significantly between experimental (65%) and control broods (44%). Within the experimental group, levels of extra-pair paternity were not related to the day of experiment in relation to start of egg laying, but males caught early in the morning lost more paternity than males caught later on. Our results show that pair males exert constraints on the frequency of extra-pair paternity by being present during the period of peak fertility, which could be a direct effect of their mate guarding effort and/or due to an advantage in sperm competition for pair males.
Starting Page	1761
Ending Page	1767
Page Count	7
File Format	PDF
ISSN	03405443
Journal	Behavioral Ecology and Sociobiology
Volume Number	62
Issue Number	11
e-ISSN	14320762
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-05-29
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sperm competition Mate guarding Sexual conflict Extra-pair paternity Male detention Zoology Behavioural Sciences
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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