Multi-locus DNA fingerprinting was used to estimate the frequency of extra-pair paternity in the Common Murre (Uria aalge), a colonial, sexually monomorphic seabird that breeds at very high densities and in which extra-pair copulation is frequent. Common Murres produce a single chick. We detected 6 cases of extra-pair paternity in 77 families (7.8%). This value was higher than the proportion of successful extra-pair copulations (1.6%) estimated from behavioral data from an earlier study of the same population.
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1 February 2001
EXTRA-PAIR PATERNITY IN THE COMMON MURRE
Tim R. Birkhead,
Ben J. Hatchwell,
Robert Lindner,
Donald Blomqvist,
E. Jayne Pellatt,
Richard Griffiths,
Jan T. Lifjeld
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The Condor
Vol. 103 • No. 1
February 2001
Vol. 103 • No. 1
February 2001
Common Guillemot
Common Murre
extra-pair paternity
sperm competition
Uria aalge