Abstract
The possibility that disruptive sexual selection alone can cause sympatric speciation is currently a subject of much debate. The initial difficulty for new and rare ornament phenotypes to invade a population, and the stabilisation of the resulting polymorphism in trait and preference make this hypothesis problematic. Recent theoretical work indicates that the invasion is facilitated if males with the new phenotype have an initial advantage in male-male competition. We studied a pair of sympatric incipient species of cichlids from Lake Victoria, in which the red (Pundamilia nyererei) and blue males (P. pundamilia) vigorously defend territories. Other studies suggested that red phenotypes may have repeatedly invaded blue populations in independent episodes of speciation. We hypothesised that red coloration confers an advantage in male-male competition, assisting red phenotypes to invade. To test this hypothesis, we staged contests between red and blue males from a population where the phenotypes are interbreeding morphs or incipient species. We staged contests under both white and green light condition. Green light effectively masks the difference between red and blue coloration. Red males dominated blue males under white light, but their competitive advantage was significantly diminished under green light. Contests were shorter when colour differences were visible. Experience of blue males with red males did not affect the outcome of a contest. The advantage of red over blue in combats may assist the red phenotype to invade blue populations. The apparently stable co-existence of red and blue incipient species in many populations of Lake Victoria cichlids is discussed.
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References
Andersson M (1994) Sexual selection. Princeton University Press, Princeton
Arnegard ME, Kondrashov AS (2004) Sympatric speciation by sexual selection is unlikely. Evolution 58:222–237
Baerends GP, Baerends-Van Roon JM (1950) An introduction to the study of the ethology of cichlid fishes. Behaviour [Suppl 1]:233–366
Barlow GW (1983) Do gold Midas cichlid fish win fights because of their color, or because they lack normal coloration? A logistic solution. Behav Ecol Sociobiol 13:197–204
Baube CL (1997) Manipulations of signalling environment affect male competitive success in three-spined sticklebacks. Anim Behav 53:819–833
Bouton N, Seehausen O, Van Alphen JJM (1997) Resource partitioning among rock-dwelling haplochromines (Pisces: Cichlidae) from Lake Victoria. Ecol Freshwater Fish 6:225–240
Bush GL (1994) Sympatric speciation in animals: new wine in old bottles. Trends Ecol Evol 9:285–288
Candolin U (2000) Changes in expression and honesty of sexual signalling over the reproductive lifetime of sticklebacks. Proc R Soc Lond B 267:2425–2430
Coyne JA, Orr HA (2004) Speciation. Sinauer, Sunderland, Mass
Dominey WJ (1984) Effects of sexual selection and life history on speciation: species flocks in African cichlids and Hawaiian Drosophila. In: Echelle AA, Kornfield I (eds) Evolution of fish species flocks. University of Maine Press, Orono, pp 231–249
Endler JA (1992) Signals, signal conditions and the direction of evolution. Am Nat 139:S125–S153
Endler JA, Thery M (1996) Interacting effects of lek placement, display behavior, ambient light and color patterns in three neotropical forest-dwelling birds. Am Nat 148:421–452
Enquist M, Leimar O (1983) Evolution of fighting behaviour: decision rules and assessment of relative strength. J Theor Biol 102:387–410
Evans MR, Norris K (1996) The importance of carotenoids in signalling during aggressive interactions between male firemouth cichlids (Cichlasoma meeki). Behav Ecol 7:1–6
Fryer G, Iles TD (1972) The cichlid fishes of the Great Lakes of Africa: their biology and evolution. Oliver and Boyd, London
Godin J-GJ, McDonough HE (2003) Predator preference for brightly colored males in the guppy: a viability cost for a sexually selected trait. Behav Ecol 14:194–200
Greenwood PH (1981) Species flocks and explosive speciation. In: Greenwood PH, Forey PL (eds) Chance, change and challenge—the evolving biosphere. Cambridge University Press, Cambridge, pp 61–74
Hardy ICW, Field SA (1998) Logistic analysis of animal contests. Anim Behav 56:787–792
Higashi M, Takimoto G, Yamamura N (1999) Sympatric speciation by sexual selection. Nature 402:523–526
Johnson TC, Scholz CA, Talbot MR, Kelts K, Ricketts RD, Ngobi G, Beuning K, Ssemmanda I, McGill JW (1996) Late pleistocene desiccation of Lake Victoria and rapid evolution of cichlid fishes. Science 273:1091–1093
Kaufman L (1997) Asynchronous taxon cycles in haplochromine fishes of the greater Lake Victoria region. S Afr J Sci 93:601–606
Kawata M, Yoshimura J (2000) Speciation by sexual selection in hybridizing populations without viability selection. Evol Ecol Res 2:897–909
Kirkpatrick M, Nuismer S (2004) Sexual selection can constrain sympatric speciation. Proc R Soc Lond B 271:687–693
Kocher T (2004) Adaptive evolution and explosive speciation: the cichlid fish model. Nat Rev Genet 5:288–298
Lande R, Kirkpatrick M (1986) Ecological speciation by sexual selection. J Theor Biol 133:85–98
Maan ME, Seehausen O, Soderberg L, Johnson L, Ripmeester EAP, Mrosso HDJ, Taylor MI, van Dooren TJM, Van Alphen JJM (2004) Intraspecific sexual selection on a speciation trait, male coloration, in the Lake Victoria cichlid Pundamilia nyererei. Proc R Soc Lond B 271:2445–2452
Neat FC, Huntingford FA, Beveridge MMC (1998) Fighting and assessment in male cichlid fish: the effects of asymmetries in gonadal state and body size. Anim Behav 55:883–891
Oliveira RF, Almada VC (1998) Mating tactics and male-male courtship in the lek-breeding cichlid Oreochromis mossambicus. J Fish Biol 52:1115–1129
Panhuis TM, Butlin R, Zuk M, Tregenza T (2001) Sexual selection and speciation. Trends Ecol Evol 16:364–370
Payne RJH, Krakauer DC (1997) Sexual selection, space, and speciation. Evolution 51:1–9
Rowland WJ, Bolyard KJ, Halpern AD (1995) The dual effect of stickleback nuptial coloration on rivals: manipulation of a graded signal using video playback. Anim Behav 50:267–272
Schluter D (2001) Ecology and the origin of species. Trends Ecol Evol 16:372–380
Seehausen O (1996) Lake Victoria rock cichlids: taxonomy, ecology and distribution. Verduyn Cichlids
Seehausen O (1997) Distribution of and reproductive isolation among colour morphs of a rock-dwelling Lake Victoria cichlid (Haplochromis nyererei). Ecol Freshwater Fish 6:59–66
Seehausen O (2002) Patterns in fish radiation are compatible with Pleistocene desiccation of Lake Victoria and 14 600 year history for its cichlid species flock. Proc R Soc Lond B 269:491–497
Seehausen O, Bouton N (1997) Microdistribution and fluctuations in niche overlap in a rocky shore cichlid community in Lake Victoria. Ecol Freshwater Fish 6:161–173
Seehausen O, Schluter D (2004) Male-male competition and nuptial color displacement as a diversifying force in Lake Victoria cichlid fish. Proc R Soc Lond B 271:1345–1353
Seehausen O, van Alphen JJM (1998) The effect of male coloration on female mate choice in closely related Lake Victoria cichlids (Haplochromis nyererei complex). Behav Ecol Sociobiol 42:1–8
Seehausen O, van Alphen JJM (1999) Can sympatric speciation by disruptive sexual selection explain rapid evolution of cichlid diversity in Lake Victoria? Ecol Lett 2:262–271
Seehausen O, van Alphen JJM, Witte F (1997) Cichlid fish diversity threatened by eutrophication that curbs sexual selection. Science 277:1808–1811
Seehausen O, Witte F, van Alphen JJM, Bouton N (1998a) Direct mate choice maintains diversity among sympatric cichlids in Lake Victoria. J Fish Biol 53:37–55
Seehausen O, Lippitsch E, Bouton N, Zwennes H (1998b) Mbipi, the rock-dwelling cichlids of Lake Victoria: description of three new genera and fifteen new species (Teleostei). Ichthyological Explor Freshwaters 9:129–228
Seehausen O, van Alphen JJM, Lande R (1999) Color polymorphism and sex ratio distortion in a cichlid fish as an incipient stage in sympatric speciation by sexual selection. Ecol Lett 2:367–378
Seehausen O, Koetsier E, Schneider MV, Chapman LJ, Chapman CA, Knight ME, Turner GF, Van Alphen JJM, Bills R (2003) Nuclear markers reveal unexpected genetic variation and a Congolese-Nilotic origin of the Lake Victoria cichlid species flock. Proc R Soc Lond B 270:129–137
Turelli M, Barton NH, Coyne JA (2001) Theory and speciation. Trends in ecology and evolution 16:330–343
Turner GF (1994) The fighting tactics of male mouthbrooding cichlids: the effects of size and residency. Anim Behav 47:655–662
Turner GF, Burrows MT (1995) A model of sympatric speciation by sexual selection. Proc R Soc Lond B 260:287–292
Turner GF, Huntingford FA (1986) A problem for game theory analysis: assessment and intention in male mouthbrooder contests. Anim Behav 34:961–970
van Doorn GS, Weissing FJ (2001) Ecological versus sexual selection models of sympatric speciation. Selection 2:17–40
van Doorn GS, Noest AJ, Hogeweg P (1998) Sympatric speciation and extinction driven by environment dependent sexual selection. Proc R Soc Lond B 265:1915–1919
van Doorn GS, Diekmann U, Weissing FJ (2004) Sympatric speciation by sexual selection: a critical re-evaluation. Am Nat 163:709–725
Via S (2001) Sympatric speciation in animals: the ugly duckling grows up. Trends Ecol Evol 16:381–390
Wells MM, Henry CS (1998) Songs, reproductive isolation, and speciation in cryptic species of insects: a case study using green lacewings. In: Howard DJ, Berlocher SH (eds) Endless forms: species and speciation. Oxford University Press, Oxford, pp 217–233
Witte-Maas E, Witte F (1985) Haplochromis Nyererei, a new cichlid fish from Lake Victoria named in honour of Mwalimu Julius Nyerere, President of Tanzania. Brill, Leiden
Acknowledgements
We thank Martine Maan for supplying the wild-caught fish; Roelie Veenstra-Wiegman and Sjoerd Veenstra for their assistance with fish care; and Franjo Weissing, Sander van Doorn and Han Verkiel for useful discussion. Serge Daan, Kyle Young and two anonymous referees are acknowledged for useful comments on the manuscript. Experiments were carried out under licence (DEC 2812) from Groningen University and comply with current laws in the Netherlands. The research was financed by a NWO (SLW) grant 810.64.013.
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Dijkstra, P.D., Seehausen, O. & Groothuis, T.G.G. Direct male-male competition can facilitate invasion of new colour types in Lake Victoria cichlids. Behav Ecol Sociobiol 58, 136–143 (2005). https://doi.org/10.1007/s00265-005-0919-5
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DOI: https://doi.org/10.1007/s00265-005-0919-5