2019
DOI: 10.1093/beheco/ary202
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Female preference for novel males constrains the contemporary evolution of assortative mating in guppies

Abstract: Progress toward local adaptation is expected to be enhanced when divergent selection is multidimensional, because many simultaneous sources of selection can increase the total strength of selection and enhance the number of independent traits under selection. Yet, whether local adaptation ensues from multidimensional selection also depends on its potential to cause the build-up of reproductive barriers such as sexual signals and preference for these signals. We used replicate experimental introductions of gupp… Show more

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Cited by 7 publications
(7 citation statements)
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“…Collected fish were transported by car in buckets of river water to the University of the West Indies, St. Augustine and maintained in single-sex stock aquaria to prevent the development of individual social familiarity between males and females and its potential influence on the expression of female preferences. Both male and female guppies have previously been shown to demonstrate a preference for novel or unfamiliar mates (Hughes et al 1999;Kelley et al 1999;Dargent et al 2019). The guppies were fed three times daily with commercial flake food, supplemented with brine shrimp nauplii.…”
Section: Experimental Methodsmentioning
confidence: 99%
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“…Collected fish were transported by car in buckets of river water to the University of the West Indies, St. Augustine and maintained in single-sex stock aquaria to prevent the development of individual social familiarity between males and females and its potential influence on the expression of female preferences. Both male and female guppies have previously been shown to demonstrate a preference for novel or unfamiliar mates (Hughes et al 1999;Kelley et al 1999;Dargent et al 2019). The guppies were fed three times daily with commercial flake food, supplemented with brine shrimp nauplii.…”
Section: Experimental Methodsmentioning
confidence: 99%
“…Conversely, in some species, one sex may demonstrate a preference for mates displaying a rarer phenotype, and therefore it may benefit an individual to be the phenotypically odd member of a group (Hughes et al 1999;Dargent et al 2019).…”
Section: Social Livingmentioning
confidence: 99%
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