sexual selection

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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 ?
Mate choice in the hermaphroditic land snail Succinea putris (Stylommatophora: Succineidae).
Whether or not this latter trait is used by females in a mate choice context to judge the size of their potential suitors is an interesting area of future inquiry.
Male mate choice, sexual conflict and strategic allocation of copulations in a lekking bird.
Other researchers have stressed the importance of other factors such as odor, which has been shown to have powerful effects on mate choice in humans (Havlicek & Roberts, 2009).
Interspecific mate choice and hybridism in the bufflehead, Bucephala albeola.
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.
These results suggest that temporal call parameters have the potential to be used in individual identity and these traits might carry information used by females in mate choice.
Mate-copying is an example of selection in which individuals copy the mate choice of others.
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.
Because nutritional resources represent energetic costs to males, it is expected that males will show mate choice, rejecting low-quality females and competing for access to high-quality females (Bonduriansky 2001).