Rare extra-pair fertilizations in the semi-colonially breeding linnet Carduelis cannabina

Publication Type:Journal Article
Year of Publication:2002
Authors:Bønløkke-Pedersen, J, Drachmann, J, Frydenberg, J, BOOMSMA, JACOBUSJ
Journal:Journal of Avian Biology
Volume:33
Issue:2
Date Published:2002
ISBN Number:1600-048X
Keywords:Acanthis cannabina, Carduelis, Carduelis cannabina, Denmark, Fringillidae, Linaria, Linaria cannabina
Abstract:Microsatellite analysis was used to analyse the level of extra-pair paternity (EPP) in the semi-colonially breeding linnet Carduelis cannabina in Denmark. During the breeding seasons of 1998 and 1999 EPP accounted for only 3.8% of young (4/106, 95% CL=1–13%). These extra-pair young were found in 9.1% of the broods (2/22, 95% CL=1–29%). We hypothesize that this low level of EPP is due to an efficient use of both mate guarding and frequent copulations as paternity guards. However, experimental tests with temporary detainment of males would be needed to establish whether there is a causal relationship between the low EPP level and the double paternity guard.
URL:http://dx.doi.org/10.1034/j.1600-048X.2002.330213.x
Short Title:Journal of Avian Biology
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