Abstract
Current sexual-selection theories predict that mating should occur preferentially with the highest-quality partner, and assume that for distinguishing among potential mates the choosy sex applies an internal representation of the characteristics of the desired mate, i.e. a template. Binary choice experiments were performed to test male mate choice between two different female colour morphs in the damselfly Ischnura elegans. Choice experiments were conducted before and after an habituation period, during which males were exposed to only one female colour morph. Given the choice between the two female morphs, males did exhibit a choice for the most recently experienced female morph. This is the first evidence for a reversible switch in mate choice in a frequency-dependent way. In contrast with previous studies on mate choice, template formation in male I. elegans seems not to be based on quality. Switching mate choice in a frequency-dependent manner, choosing the most common morph, probably allows males to minimize their search efforts and to maximize fitness.
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Selected References
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- Allen J. A. Frequency-dependent selection by predators. Philos Trans R Soc Lond B Biol Sci. 1988 Jul 6;319(1196):485–503. doi: 10.1098/rstb.1988.0061. [DOI] [PubMed] [Google Scholar]
- Cordero A, Carbone Ss, Utzeri C. Mating opportunities and mating costs are reduced in androchrome female damselflies, Ischnura elegans (Odonata) Anim Behav. 1998 Jan;55(1):185–197. doi: 10.1006/anbe.1997.0603. [DOI] [PubMed] [Google Scholar]
- Endler J. A. Frequency-dependent predation, crypsis and aposematic coloration. Philos Trans R Soc Lond B Biol Sci. 1988 Jul 6;319(1196):505–523. doi: 10.1098/rstb.1988.0062. [DOI] [PubMed] [Google Scholar]
- Hughes KA, Du L, Rodd FH, Reznick DN. Familiarity leads to female mate preference for novel males in the guppy, Poecilia reticulata. Anim Behav. 1999 Oct;58(4):907–916. doi: 10.1006/anbe.1999.1225. [DOI] [PubMed] [Google Scholar]
- Jennions M. D., Petrie M. Variation in mate choice and mating preferences: a review of causes and consequences. Biol Rev Camb Philos Soc. 1997 May;72(2):283–327. doi: 10.1017/s0006323196005014. [DOI] [PubMed] [Google Scholar]
- Owens IP, Rowe C, Thomas AL. Sexual selection, speciation and imprinting: separating the sheep from the goats. Trends Ecol Evol. 1999 Apr;14(4):131–132. doi: 10.1016/s0169-5347(98)01578-x. [DOI] [PubMed] [Google Scholar]
- Partridge L. The rare-male effect: what is its evolutionary significance? Philos Trans R Soc Lond B Biol Sci. 1988 Jul 6;319(1196):525–539. doi: 10.1098/rstb.1988.0063. [DOI] [PubMed] [Google Scholar]
- Van gossum H, Stoks R, Matthysen E, Valck F, De bruyn L Male choice for female colour morphs in Ischnura elegans (Odonata, Coenagrionidae): testing the hypotheses. Anim Behav. 1999 Jun;57(6):1229–1232. doi: 10.1006/anbe.1999.1100. [DOI] [PubMed] [Google Scholar]
- Westneat DF, Walters A, McCarthy TM, Hatch MI, Hein WK. Alternative mechanisms of nonindependent mate choice. Anim Behav. 2000 Mar;59(3):467–476. doi: 10.1006/anbe.1999.1341. [DOI] [PubMed] [Google Scholar]
- Widemo F, Sæther SA. Beauty is in the eye of the beholder: causes and consequences of variation in mating preferences. Trends Ecol Evol. 1999 Jan;14(1):26–31. doi: 10.1016/s0169-5347(98)01531-6. [DOI] [PubMed] [Google Scholar]