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Evidence for cuckoldry in the Great Tit Parus major
Author(s) -
NORRIS K. J.,
BLAKEY J. K.
Publication year - 1989
Publication title -
ibis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.933
H-Index - 80
eISSN - 1474-919X
pISSN - 0019-1019
DOI - 10.1111/j.1474-919x.1989.tb02794.x
Subject(s) - parus , offspring , zoology , heritability , biology , ecology , evolutionary biology , genetics , pregnancy
We estimated the frequency of cuckoldry (the proportion of offspring resulting from extra‐pair copulations) in Great Tits Parus major using heritability estimates based on the resemblance of offspring tarsus‐length to that of their parents. Our results suggest that cuckoldry occurs and may be relatively common in certain years.