sexual selection

(redirected from Mate choice)
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Related to Mate choice: assortative mating

sex·u·al se·lec·tion

a form of natural selection in which, according to darwinian theory, the male or female is attracted by certain characteristics, form, color, behavior, etc., in the opposite sex; thus modifications of a special nature are brought about in the species.

sexual selection

n. Biology
The process in nature by which individuals with certain traits, especially secondary sex characteristics such as colorful plumage and large antlers, are chosen more often for mating and thus pass those traits on to their offspring.

sexual selection

the selection of mates on the basis of the attraction of or preference for certain traits, such as coloration or behavior patterns, so that eventually only those particular traits appear in succeeding generations. It explains the wide variety of sexual characteristics among the various species.

sex·u·al se·lec·tion

(sek'shū-ăl sĕ-lek'shŭn)
A form of natural selection in which, according to Darwin's theory, the male or female is attracted by certain characteristics, forms, colors, behaviors, and phenomena, in the opposite sex; thus, modifications of a special nature are brought about in the species.

sexual selection

the selection of a mate by female animals where, for example, the most brightly coloured is favoured, so maintaining brightly coloured males in a population. Some authorities consider that sexual selection explains the existence of SECONDARY SEXUAL CHARACTERS.
References in periodicals archive ?
lutarium was female biased, which might lead to male mate choice and female competition for mates in this population.
Male-male competition and mate choice in anuran amphibians Mate choice.
Moreover, males interacted first with the previously non-preferred female when an audience male was presented, thereby potentially exploiting male mate choice copying behavior so as to lead the rival away from the preferred mate ('deceptive behavior', Plath et al.
The influence on mammalian behavior by pheromones is also covered, although it remains controversial whether these chemical signals drive mate choice, fear, and other emotions and behaviors in humans.
It makes sense to use symmetry variation in mate choice," said evolutionary biologist Randy Thornhill, of the University of New Mexico.
The eggs and sperm are released into the ocean current, mate choice and fertilisation are completely random, and the fertilised eggs develop into larvae on the ocean floor where they grow into adult crinoids and can themselves reproduce after a year or so.
The costs and benefits of courtship and mate choice are of critical importance to our understanding of sexual selection, and it has been widely accepted that sexual traits associated with courtship increase fitness.
His research centres around birdsong, mate choice and sexual selection.
The first was published in the Proceedings of the National Academy of Sciences under the heading, "Different cognitive processes underlie human mate choice and mate preferences," and I quote its conclusion verbatim because I could never lay it on as heavily as these researchers:
The fact that owls are essentially active during the night puts a strong emphasis on acoustic communication as a means of assessment, both during male competition and during mate choice," said Dr Loic Hardouin, from the Centre d'Etudes Biologiques de Chize in France.
In 1930 the mathematical geneticist Ronald Fisher proposed a model for the origins of mate choice and its consequences as "runaway selection.