Intraspecific sexual selection on a speciation trait, male coloration, in the Lake Victoria cichlid Pundamilia nyererei

Maan, Martine E., Seehausen, Ole, Söderberg, Linda, Johnson, Lisa, Ripmeester, Erwin A. P., Mrosso, Hilary D. J., Taylor, Martin I. ORCID: https://orcid.org/0000-0002-3858-0712, van Dooren, Tom J. M. and van Alphen, Jacques J. M. (2004) Intraspecific sexual selection on a speciation trait, male coloration, in the Lake Victoria cichlid Pundamilia nyererei. Proceedings of the Royal Society B: Biological Sciences, 271 (1556). pp. 2445-2452. ISSN 0962-8452

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Abstract

The haplochromine cichlids of Lake Victoria constitute a classical example of explosive speciation. Extensive intra– and interspecific variation in male nuptial coloration and female mating preferences, in the absence of postzygotic isolation between species, has inspired the hypothesis that sexual selection has been a driving force in the origin of this species flock. This hypothesis rests on the premise that the phenotypic traits that underlie behavioural reproductive isolation between sister species diverged under sexual selection within a species. We test this premise in a Lake Victoria cichlid, by using laboratory experiments and field observations. We report that a male colour trait, which has previously been shown to be important for behavioural reproductive isolation between this species and a close relative, is under directional sexual selection by female mate choice within this species. This is consistent with the hypothesis that female choice has driven the divergence in male coloration between the two species. We also find that male territoriality is vital for male reproductive success and that multiple mating by females is common.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Biological Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Organisms and the Environment
Depositing User:	LivePure Connector
Date Deposited:	18 Dec 2019 02:04
Last Modified:	25 May 2023 13:31
URI:	https://ueaeprints.uea.ac.uk/id/eprint/73388
DOI:	10.1098/rspb.2004.2911

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