Drent, P.J. and Van Oers, K. and Van Noordwijk, A.J. (2003) Realized heritability of personalities in the great tit (Parus major). Proceedings of the Royal Society B-Biological Sciences, 270, 45-51. ISSN 0962-8452.
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Official URL: http://dx.doi.org/10.1098/rspb.2002.2168
Behaviour under conditions of mild stress shows consistent patterns in all vertebrates: exploratory behaviour, boldness, aggressiveness covary in the same way. The existence of highly consistent individual variation in these behavioural strategies, also referred to as personalities or coping styles, allows us to measure the behaviour under standardized conditions on birds bred in captivity, link the standardized measurements to the behaviour under natural conditions and measure natural selection in the field. We have bred the great tit (Parus major), a classical model species for the study of behaviour under natural conditions, in captivity. Here, we report a realized heritability of 54 ± 5% for early exploratory behaviour, based on four generations of bi-directional artificial selection. In addition to this, we measured hand-reared juveniles and their wild-caught parents in the laboratory. The heritability found in the mid-offspring-mid-parent regression was significantly different from zero. We have thus established the presence of considerable amounts of genetic variation for personality types in a wild bird.
|Institutes:||Nederlands Instituut voor Ecologie (NIOO)|
|Deposited On:||24 Nov 2011 01:00|
|Last Modified:||24 Apr 2012 16:34|
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