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Male-Male Competition as a Force in Evolutionary Diversification : Evidence in Haplochromine Cichlid Fish
Joint Authors
Groothuis, Ton G. G.
Dijkstra, Peter D.
Source
International Journal of Evolutionary Biology
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-07-13
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
It has been suggested that intrasexual competition can be a source of negative frequency-dependent selection, causing agonistic character displacement and facilitating speciation and coexistence of (sibling) species.
In this paper we synthesise the evidence that male-male and female-female competition contributes to cichlid diversification, showing that competition is stronger among same-coloured individuals than those with different colours.
We argue that intrasexual selection is more complex because there are several examples where males do not bias aggression towards their own type.
In addition, sibling species or colour morphs often show asymmetric dominance relationships.
We briefly discuss potential mechanisms that might promote the maintenance of covariance between colour and aggression-related traits even in the face of gene-flow.
We close by proposing several avenues for future studies that might shed more light on the role of intrasexual competition in cichlid diversification.
American Psychological Association (APA)
Dijkstra, Peter D.& Groothuis, Ton G. G.. 2011. Male-Male Competition as a Force in Evolutionary Diversification : Evidence in Haplochromine Cichlid Fish. International Journal of Evolutionary Biology،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-490709
Modern Language Association (MLA)
Dijkstra, Peter D.& Groothuis, Ton G. G.. Male-Male Competition as a Force in Evolutionary Diversification : Evidence in Haplochromine Cichlid Fish. International Journal of Evolutionary Biology No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-490709
American Medical Association (AMA)
Dijkstra, Peter D.& Groothuis, Ton G. G.. Male-Male Competition as a Force in Evolutionary Diversification : Evidence in Haplochromine Cichlid Fish. International Journal of Evolutionary Biology. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-490709
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-490709