Experimental reversal of courtship roles in an insect

Gwynne, Darryl; Simmons, Leigh W.

doi:10.1038/346172a0

Cited by 292 publications

(225 citation statements)

References 11 publications

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“…Similarly, in some polygynous ungulates where males initially compete intensely for females, females that have entered estrus and need to mate rapidly compete for the attentions of defending males (57,58). Several studies of species where both sexes make large investments in their offspring have shown that the relative intensity of reproductive competition in the two sexes can be changed by manipulating resource availability and reversing sex differences in PRR (59,60).…”

Section: Sexual Selection In Femalesmentioning

confidence: 99%

Sexual Selection in Males and Females

Clutton‐Brock

2007

Science

786

609

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Section: Sexual Selection In Femalesmentioning

confidence: 99%

Sexual Selection in Males and Females

Clutton‐Brock

2007

Science

786

609

View full text Add to dashboard Cite

show abstract

“…Many authors have framed this conclusion in somewhat different terms (Trivers 1972;Emlen and Oring 1977;Trivers 1985;CluttonBrock and Parker 1992). Exceptions to the pattern of male competition and female choice, among both vertebrates and invertebrates, tend to prove the rule that factors limiting reproduction determine the evolution of choice or competition for mates (Gwynne and Simmons 1990;Gwynne 1991;Vincent et al 1994).…”

Section: Mechanisms Of Sexual Selectionmentioning

confidence: 99%

Perspective: Indirect Mate Choice, Competition for Mates, and Coevolution of the Sexes

1996

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Abstract.-When Darwin first proposed the possibility of sexual selection, he identified two mechanisms, male competition for mates and female choice of mates. Extending this classification, we distinguish two forms of mate choice, direct and indirect. This distinction clarifies the relationship between Darwin's two mechanisms and, furthermore, indicates that the potential scope for sexual selection is much wider than thus far realized. Direct mate choice, the focus of most research on sexual selection in recent decades, requires discrimination between attributes of individuals of the opposite sex. Indirect mate choice includes all other behavior or morphology that restricts an individual's set of potential mates. Possibilities for indirect mate choice include advertisement of fertility or copulation, evasive behavior, aggregation or synchronization with other individuals of the same sex, and preferences for mating in particular locations. In each of these cases, indirect mate choice sets the conditions for competition among individuals of the opposite sex and increases the chances of mating with a successful competitor. Like direct mate choice, indirect mate choice produces assortative mating. As a consequence, the genetic correlation between alleles affecting indirect choice and those affecting success in competition for mates can produce self-accelerating evolution of these complementary features of the sexes. The broad possibilities for indirect mate choice indicate that sexual selection has more pervasive influences on the coevolution of male and female characteristics than previously realized.Key words.-Darwin, male-male competition, mate choice, mating systems, sexual selection.Received September 18, 1995. Accepted September 21, 1995 Research has largely confirmed Darwin's (1859Darwin's ( , 1871 speculations about the influence of sexual selection on evolution. Although it required more than a century to settle many of the theoretical and empirical issues, most of the scope for sexual selection as described by Darwin is now widely accepted. Here we take the argument a step farther. By using recent clarifications of sexual selection and by introducing a new distinction, we show that sexual selection has ramifications for the evolution of sexual organisms that extend considerably beyond those originally imagined by Darwin and currently recognized.When introducing his theory of sexual selection, Darwin (1859) envisaged two distinct mechanisms. Sexual selection, he wrote, "depends ... on a struggle between the males for the possession of the females." As an alternative mechanism of sexual selection, he suggested that "female birds, by se-1 Corresponding Author. Present address:

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“…Sex-role reversal has been a formidable puzzle for evolutionary biologists ever since Darwin 6 , because it is not clear why males under some circumstances provide most (or all) parental care, and why competition for mates should be stronger among females than among males 1,2,7,8 . Previous hypotheses of sex-role reversal focused on specific ecological and life-history characteristics, such as temporal and spatial variation in food resources, offspring predation and breeding dispersal 1,9 .…”

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The evolution of sex roles in birds is related to adult sex ratio

2013

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Sex-role reversal represents a formidable challenge for evolutionary biologists, since it is not clear which ecological, life-history or social factors facilitated conventional sex roles (female care and male-male competition for mates) to be reversed (male care and female-female competition). Classic theories suggested ecological or life-history predictors of role reversal, but most studies failed to support these hypotheses. Recent theory however predicts that sex-role reversal should be driven by male-biased adult sex ratio (ASR). Here we test this prediction for the first time using phylogenetic comparative analyses. Consistent with theory, both mating system and parental care are strongly related to ASR in shorebirds: conventional sex roles are exhibited by species with female-biased ASR, whereas sex-role reversal is associated with male-biased ASR. These results suggest that social environment has a strong influence on breeding systems and therefore revealing the causes of ASR variation in wild populations is essential for understanding sex role evolution.

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Experimental reversal of courtship roles in an insect

Cited by 292 publications

References 11 publications

Sexual Selection in Males and Females

Sexual Selection in Males and Females

Perspective: Indirect Mate Choice, Competition for Mates, and Coevolution of the Sexes

The evolution of sex roles in birds is related to adult sex ratio

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