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The role of weak selection and high mutation rates in nearly neutral
... This leaves a huge proportion of the genome shaped by effectively neutral substitutions. Could undetected selection at these loci be relevant for evolution? Mutations resulting in a small change to reproductive ability are common in both coding and non-coding regions of the genome [Ohta, 1997], aris ...
... This leaves a huge proportion of the genome shaped by effectively neutral substitutions. Could undetected selection at these loci be relevant for evolution? Mutations resulting in a small change to reproductive ability are common in both coding and non-coding regions of the genome [Ohta, 1997], aris ...
Unifying Within- and Between-Generation Bet
... mean fitness of the population. Within generations, individual fitness varies about this mean as a result of chance events or within-generation environmental variation experienced by individuals. All else being equal, natural selection can favor genotypes that reduce this variation. When this reductio ...
... mean fitness of the population. Within generations, individual fitness varies about this mean as a result of chance events or within-generation environmental variation experienced by individuals. All else being equal, natural selection can favor genotypes that reduce this variation. When this reductio ...
Sex is good for you - Centre for Disability Studies
... sexuality is an integral part of people’s identity, (Coleman, 2002; Edwards and Coleman, 2004). The Universal Declaration of Human Rights states that ‘everyone has the right to a standard of living adequate for the health and well-being of himself and of his family’, (General Assembly Resolution, Ar ...
... sexuality is an integral part of people’s identity, (Coleman, 2002; Edwards and Coleman, 2004). The Universal Declaration of Human Rights states that ‘everyone has the right to a standard of living adequate for the health and well-being of himself and of his family’, (General Assembly Resolution, Ar ...
The Evolution of Gender-Biased Nectar Production in
... The evolution of secondary sexual floral traits may be driven by selection through male or female reproductive success. Even so, the gender-biased function of a floral trait is often unapparent because secondary sexual traits and primary sexual organs of both genders co-occur within most bisexual fl ...
... The evolution of secondary sexual floral traits may be driven by selection through male or female reproductive success. Even so, the gender-biased function of a floral trait is often unapparent because secondary sexual traits and primary sexual organs of both genders co-occur within most bisexual fl ...
Emory University School of Law
... U.S. 98, 134 (1977) (Marshall, J., dissenting) (“[I]t is deeply ingrained in human nature to agree with the expressed opinions of others—particularly others who should be more knowledgeable—when making a difficult decision.”); Andersen v. United States, 170 U.S. 481, 510 (1898) (“The law in recognit ...
... U.S. 98, 134 (1977) (Marshall, J., dissenting) (“[I]t is deeply ingrained in human nature to agree with the expressed opinions of others—particularly others who should be more knowledgeable—when making a difficult decision.”); Andersen v. United States, 170 U.S. 481, 510 (1898) (“The law in recognit ...
CHARACTERISTICS OF THE MALE GAZER
... place through verbal or nonverbal means. Much qualitative research has examined the male gaze, or the visual inspection of a woman’s face, body, or body parts linked to sexual reproduction (Gervais, Holland, & Dodd, 2013; Moradi & Huang, 2008), from the perspective of the observed (i.e., women), yet ...
... place through verbal or nonverbal means. Much qualitative research has examined the male gaze, or the visual inspection of a woman’s face, body, or body parts linked to sexual reproduction (Gervais, Holland, & Dodd, 2013; Moradi & Huang, 2008), from the perspective of the observed (i.e., women), yet ...
1 Of Mice and Metaphysics: Natural Selection and Realized
... or more causal processes responsible for a given evolutionary outcome. If these two theses are accepted, then it appears that one cannot consistently claim that natural selection is a population-level causal process that is not identical to any individual-level causal process. Just as the exclusion ...
... or more causal processes responsible for a given evolutionary outcome. If these two theses are accepted, then it appears that one cannot consistently claim that natural selection is a population-level causal process that is not identical to any individual-level causal process. Just as the exclusion ...
The DSM Diagnostic Criteria for Hypoactive Sexual Desire Disorder
... having low sexual interest. In fact, depression was associated with the highest OR for predicting low desire in men compared to all the other sexual complaints. Age was unrelated to desire complaints but was strongly predictive of erectile complaints. Interestingly, having low desire in men was not ...
... having low sexual interest. In fact, depression was associated with the highest OR for predicting low desire in men compared to all the other sexual complaints. Age was unrelated to desire complaints but was strongly predictive of erectile complaints. Interestingly, having low desire in men was not ...
The World According to NAMBLA: Accounting for Deviance
... Freudian psychologist who had been an outspoken advocate of adult-child sex. It also adopted his motto as its slogan: "Sex by year eight, or else it's too late." The Society advocates the abolition of statutory rape and child pornography laws, and encourages what it claims to be its 5,000 members to ...
... Freudian psychologist who had been an outspoken advocate of adult-child sex. It also adopted his motto as its slogan: "Sex by year eight, or else it's too late." The Society advocates the abolition of statutory rape and child pornography laws, and encourages what it claims to be its 5,000 members to ...
Sexual harassment in the workplace
... Other research has found that sexual harassment is best predicted by the interaction of individual and situational factors (Pryor, Giedd, & Williams, 1995). Some individuals are more likely to harass than others; when it is easy to sexually harass, these individuals will take the opportunity. This i ...
... Other research has found that sexual harassment is best predicted by the interaction of individual and situational factors (Pryor, Giedd, & Williams, 1995). Some individuals are more likely to harass than others; when it is easy to sexually harass, these individuals will take the opportunity. This i ...
ch11HandoutSlides
... • Sexual dysfunctions are different from the usual patterns of sexual functioning, but what is considered “usual”? – Studies conducted over the past two decades have provided a wealth of information about sexual behavior in the “normal” populations of North America. – Most sexually experienced teens ...
... • Sexual dysfunctions are different from the usual patterns of sexual functioning, but what is considered “usual”? – Studies conducted over the past two decades have provided a wealth of information about sexual behavior in the “normal” populations of North America. – Most sexually experienced teens ...
Isolation by environment
... in Euphydryas butterflies, hybrids from parents adapted to different hosts exhibit intermediate traits that are significantly maladaptive, including foraging and oviposition behaviours (McBride & Singer 2010). These cases will mostly serve to strengthen the patterns resulting from natural or sexual ...
... in Euphydryas butterflies, hybrids from parents adapted to different hosts exhibit intermediate traits that are significantly maladaptive, including foraging and oviposition behaviours (McBride & Singer 2010). These cases will mostly serve to strengthen the patterns resulting from natural or sexual ...
FREE Sample Here
... (2) In 1858 Wallace sent Darwin another paper, the title was “On the tendency of varieties to depart indefinitely from the original type” where he described evolution as a process driven by competition in natural selection. (3) Darwin realized that unless he published his work, Wallace would get cre ...
... (2) In 1858 Wallace sent Darwin another paper, the title was “On the tendency of varieties to depart indefinitely from the original type” where he described evolution as a process driven by competition in natural selection. (3) Darwin realized that unless he published his work, Wallace would get cre ...
FREE Sample Here
... (2) In 1858 Wallace sent Darwin another paper, the title was “On the tendency of varieties to depart indefinitely from the original type” where he described evolution as a process driven by competition in natural selection. (3) Darwin realized that unless he published his work, Wallace would get cre ...
... (2) In 1858 Wallace sent Darwin another paper, the title was “On the tendency of varieties to depart indefinitely from the original type” where he described evolution as a process driven by competition in natural selection. (3) Darwin realized that unless he published his work, Wallace would get cre ...
FREE Sample Here
... (2) In 1858 Wallace sent Darwin another paper, the title was “On the tendency of varieties to depart indefinitely from the original type” where he described evolution as a process driven by competition in natural selection. (3) Darwin realized that unless he published his work, Wallace would get cre ...
... (2) In 1858 Wallace sent Darwin another paper, the title was “On the tendency of varieties to depart indefinitely from the original type” where he described evolution as a process driven by competition in natural selection. (3) Darwin realized that unless he published his work, Wallace would get cre ...
FREE Sample Here - We can offer most test bank and
... (2) In 1858 Wallace sent Darwin another paper, the title was “On the tendency of varieties to depart indefinitely from the original type” where he described evolution as a process driven by competition in natural selection. (3) Darwin realized that unless he published his work, Wallace would get cre ...
... (2) In 1858 Wallace sent Darwin another paper, the title was “On the tendency of varieties to depart indefinitely from the original type” where he described evolution as a process driven by competition in natural selection. (3) Darwin realized that unless he published his work, Wallace would get cre ...
SV Church Resource singles 1 A4 PGS
... It is estimated that 80% of South African’s consider themselves Christians. Research has shown that 3 out of 4 people are experiencing some form of sexual and gender based violence in our churches across South Africa. This is a hectic statistic to deal with. What are we to do as churches in South Af ...
... It is estimated that 80% of South African’s consider themselves Christians. Research has shown that 3 out of 4 people are experiencing some form of sexual and gender based violence in our churches across South Africa. This is a hectic statistic to deal with. What are we to do as churches in South Af ...
Interactive Toolkit - USC CIR - University of Southern California
... back into family life. CIR developed this toolkit to help behavioral health practitioners address some of the sexual and intimate relationship challenges that injured service members, veterans, and their spouse/partner may experience. Target Audience. The toolkit materials were designed for social w ...
... back into family life. CIR developed this toolkit to help behavioral health practitioners address some of the sexual and intimate relationship challenges that injured service members, veterans, and their spouse/partner may experience. Target Audience. The toolkit materials were designed for social w ...
Friend or Foe Who Can You Trust? - Kirklees Safeguarding Children
... about which least is known, with little documented research to provide any patterns or processes. Nationally the number of females to males known to be involved in sexually exploitative relationships is in the ratio of 4:1. Stigma, prejudice and sometimes the assumption that boys involved in selling ...
... about which least is known, with little documented research to provide any patterns or processes. Nationally the number of females to males known to be involved in sexually exploitative relationships is in the ratio of 4:1. Stigma, prejudice and sometimes the assumption that boys involved in selling ...
American Perceptions of Sexual Violence: A FrameWorks Research Report
... This report documents the incredible strides that advocates who have been working on the issue of sexual violence have made in the last 30 years regarding public perceptions of sexual violence. All of the members of the public we interviewed recognized several forms of sexual violence as punishable, ...
... This report documents the incredible strides that advocates who have been working on the issue of sexual violence have made in the last 30 years regarding public perceptions of sexual violence. All of the members of the public we interviewed recognized several forms of sexual violence as punishable, ...
natural selection and heredity
... must be considered here. Darwin separated sexual selection from other types. He pointed out that there exist in animals which have two sexes, particularly to the male, many attributes which seem unlikely to contribute to the survival of the individual and may even ...
... must be considered here. Darwin separated sexual selection from other types. He pointed out that there exist in animals which have two sexes, particularly to the male, many attributes which seem unlikely to contribute to the survival of the individual and may even ...
USING ATTACHMENT THEORY TO STUDY MOTHER
... sexual behaviors, studies such as Askelson et al. (2012) have found significant predictors of parenting styles on effective communication about risky sexual behaviors. It is important to study communication in the moment, but to understand and evaluate the effectiveness of the communication it is be ...
... sexual behaviors, studies such as Askelson et al. (2012) have found significant predictors of parenting styles on effective communication about risky sexual behaviors. It is important to study communication in the moment, but to understand and evaluate the effectiveness of the communication it is be ...
Altitudinal patterns for longevity, fecundity and senescence in
... 70 KD heat-shock protein, which clinally varies in its heat-induced expression (Sørensen et al., 2005b). Clinal patterns of senescence might potentially shift with high temperature and/or other factors because of genotype-by-environment interactions. In studies of geographic variation in longevity, ...
... 70 KD heat-shock protein, which clinally varies in its heat-induced expression (Sørensen et al., 2005b). Clinal patterns of senescence might potentially shift with high temperature and/or other factors because of genotype-by-environment interactions. In studies of geographic variation in longevity, ...
A framework for comparing processes of speciation in the
... Box 2 Potential examples of multiple-effect traits Numerous examples of possible multiple-effect traits have been proposed in recent years, but few cases have been fully analysed. Work that has focused largely on the signalling component of the mate recognition system has proposed the existence of m ...
... Box 2 Potential examples of multiple-effect traits Numerous examples of possible multiple-effect traits have been proposed in recent years, but few cases have been fully analysed. Work that has focused largely on the signalling component of the mate recognition system has proposed the existence of m ...
Spring 2008 - FORUM: University of Edinburgh Postgraduate Journal
... expanded to include instances in which technology is designed to take on human form, particularly when that technology is recognized and treated as human and is specifically designed for human interaction. There are many examples of such adapted technology today, such as automated switchboard operat ...
... expanded to include instances in which technology is designed to take on human form, particularly when that technology is recognized and treated as human and is specifically designed for human interaction. There are many examples of such adapted technology today, such as automated switchboard operat ...
Sexual selection
![](https://commons.wikimedia.org/wiki/Special:FilePath/Paon_blanc_Madère_2008.jpg?width=300)
Sexual selection is a mode of natural selection where typically members of one gender choose mates of the other gender to mate with, called intersexual selection, and where females normally do the choosing, and competition between members of the same gender to sexually reproduce with members of the opposite sex, called intrasexual selection. These two forms of selection mean that some individuals have better reproductive success than others within a population either from being sexier or preferring sexier partners to produce offspring. For instance in the breeding season sexual selection in frogs occurs with the males first gathering at the water's edge and croaking. The females then arrive and choose the males with the deepest croaks and best territories. Generalizing, males benefit from frequent mating and monopolizing access to a group of fertile females. Females have a limited number of offspring they can have and they maximize the return on the energy they invest in reproduction.First articulated by Charles Darwin who described it as driving speciation and that many organisms had evolved features whose function was deleterious to their individual survival, and then developed by Ronald Fisher in the early 20th century. Sexual selection can lead typically males to extreme efforts to demonstrate their fitness to be chosen by females, producing secondary sexual characteristics, such as ornate bird tails like the peacock plumage, or the antlers of deer, or the manes of lions, caused by a positive feedback mechanism known as a Fisherian runaway, where the passing on of the desire for a trait in one sex is as important as having the trait in the other sex in producing the runaway effect. Although the sexy son hypothesis indicates that females would prefer male sons, Fisher's principle explains why the sex ratio is 1:1 almost without exception. Sexual selection is also found in plants and fungi.The maintenance of sexual reproduction in a highly competitive world has long been one of the major mysteries of biology given that asexual reproduction can reproduce much more quickly as 50% of offspring are not males, unable to produce offspring themselves. However, research published in 2015 indicates that sexual selection can explain the persistence of sexual reproduction.