Abstract:
:Negative effects of inbreeding are well documented in a wide range of animal taxa. Hatching success and survival of inbred offspring is reduced in many species and inbred progeny are often less attractive to potential mates. Thus, individuals should avoid mating with close kin. However, experimental evidence for inbreeding avoidance through non-random mating in vertebrates is scarce. Here, we show that gravid female three-spined sticklebacks (Gasterosteus aculeatus) when given the choice between a courting familiar brother and a courting unfamiliar non-sib prefer to mate with the non-sib and thus avoid the disadvantages of incest. We controlled for differences in males' body size and red intensity of nuptial coloration. Thus, females adjust their courting behaviour to the risk of inbreeding.
journal_name
Biol Lettjournal_title
Biology lettersauthors
Frommen JG,Bakker TCdoi
10.1098/rsbl.2005.0432subject
Has Abstractpub_date
2006-06-22 00:00:00pages
232-5issue
2eissn
1744-9561issn
1744-957Xpii
Y6U71674W754454Hjournal_volume
2pub_type
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