Consultez les articles du Bulletin Aves !
Aves, 30/3-4 | 1993 | 167-172
Extra-pair copulations and paternity in the Blue Tit (Parus caeruleus).
This paper reports on a study of the reproductive behaviour and succes of individual Blue Tits in a colour-ringed population near Antwerp. Males could increase their reproductive succes by pairing with more than one female and thus becoming polygynous, or by engaging in copulations with females paired with other males. Such extrapair copulations (EPCs) were common and a parentage analysis using DNA fingerprinting showed that they can lead to illegitimate offspring. Female Blue Tits actively seek EPCs from certain attractive males. These attractive males received many female visits and survived better than the males that lost paternity. These data suggest that females choose "good genes" for their offspring.
Articles published in the same bulletin
Distribution and habitat of the Middle Spotted Woodpecker (Dendrocopos medius) in Belgium.
Forest evolution and tendancies for the Hazel Grouse (Bonasa bonasia) in the Belgian Ardenne Region.
Diet of Picardy coast Laridae.
About parasite infection by Ornithomya biloba of the Swallow (Hirundo rustica) in Wallonia.
Collette, P., Ponsen, R. & Tomasovic, G.
Jacob, J.-P. & De Liedekerke, R.
A spring record of Richard's Pipit (Anthus richardi) in Belgium.
Verroken, D. & Verroken, L.
The Stonechat (Saxicola torquata) breeding in the lower reaches of the Sambre bassin.
History and present status of the Middle Spotted Woodpecker's (Dendrocopos medius) populations in the Nord-Pas-de-Calais region.
Van Der Elst, D., Balthazart, J., Clotuche, E., Destinay, P., Gailly, P., Jacob, J.-P., Neve, G., Van Nieuwenhuyse, D. & Versailles, A.