The effects of familiarity and group size on mating preferences in the guppy, Poecilia reticulata

Mariette, M.M., Zajitschek, S., Macías, Garcia T. and Brooks, R. 2010, The effects of familiarity and group size on mating preferences in the guppy, Poecilia reticulata, Journal of evolutionary biology, vol. 23, no. 8, pp. 1772-1782, doi: 10.1111/j.1420-9101.2010.02042.x.

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Title The effects of familiarity and group size on mating preferences in the guppy, Poecilia reticulata
Author(s) Mariette, M.M.ORCID iD for Mariette, M.M.
Zajitschek, S.
Macías, Garcia T.
Brooks, R.
Journal name Journal of evolutionary biology
Volume number 23
Issue number 8
Start page 1772
End page 1782
Total pages 11
Publisher Wiley-Blackwell
Place of publication Chichester, England
Publication date 2010
ISSN 1010-061X
Keyword(s) colour polymorphism
group size
inbreeding avoidance
mate choice
multiple matings
rare male
sexual harassment
social context
Summary In recent years, it has become evident that frequency dependence in the attractiveness of a particular phenotype to mates can contribute to the maintenance of polymorphism. However, these preferences for rare and unfamiliar male phenotypes have only been demonstrated in small, controlled experiments. Here, we tested the preference for unfamiliar mates in groups of six to 96 individuals over 13 days, in the guppy (Poecilia reticulata). We observed individual behaviour in situ to test whether fish discriminate two unfamiliar individuals among many familiar ones. We found that unfamiliar males and females were preferred over the familiar fishes in all groups and that this effect decayed over time. Increasing group sizes and levels of sexual activity did not hamper the preference for unfamiliar mates, providing further support for the role of frequency dependent mate choice in the maintenance of trait polymorphism in natural populations.
Language eng
DOI 10.1111/j.1420-9101.2010.02042.x
Field of Research 059999 Environmental Sciences not elsewhere classified
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2010, Wiley-Blackwell Publishing
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