The relative importance of size and asymmetry in sexual selection
... Developmental stability reflects the ability of individuals to cope with their environment during ontogeny given their genetic background. An inability to cope with environmental and genetic perturbations is reflected in elevated levels of fluctuating asymmetry and other measures of developmental in ...
... Developmental stability reflects the ability of individuals to cope with their environment during ontogeny given their genetic background. An inability to cope with environmental and genetic perturbations is reflected in elevated levels of fluctuating asymmetry and other measures of developmental in ...
Chapter 1 - Hull Hydra
... to what is bei ng indicated. But a ny a ttempt to distinguish 'an ideology of masculinity', or provide a definable model for it, can have the effect ofschematising complex and particula r social processes, or of suggesting that masculinity is somehow uni tary in character. Our presumption needs to b ...
... to what is bei ng indicated. But a ny a ttempt to distinguish 'an ideology of masculinity', or provide a definable model for it, can have the effect ofschematising complex and particula r social processes, or of suggesting that masculinity is somehow uni tary in character. Our presumption needs to b ...
Sexual Differences in Flight Calls and the Cue for Vocal Sex
... birds, the ability to discriminate Flight Calls of both sexesplays a major role in sexidentification of the Swinhoe’s Storm-Petrel. It is considered that there are clear-cut sexual differences in the call structure of Flight Calls because of the few errors in sex recognition. Analyses of call rhythm ...
... birds, the ability to discriminate Flight Calls of both sexesplays a major role in sexidentification of the Swinhoe’s Storm-Petrel. It is considered that there are clear-cut sexual differences in the call structure of Flight Calls because of the few errors in sex recognition. Analyses of call rhythm ...
Research Article The Evaluation of Sexual Functions and Sex
... with endocrinopathies were excluded from the study. ...
... with endocrinopathies were excluded from the study. ...
The False Problem of the Maintenance of Sex
... indeed the case—and given that asexuality is the ancestral condition—it seems logical that the return to asexuality should occur in a facultative manner by silencing or activating certain genes, perhaps in response to certain signs of change in the environment. In fact nowadays, species with an alte ...
... indeed the case—and given that asexuality is the ancestral condition—it seems logical that the return to asexuality should occur in a facultative manner by silencing or activating certain genes, perhaps in response to certain signs of change in the environment. In fact nowadays, species with an alte ...
Avian sex determination: what, when and where?
... gonads and Müllerian ducts, where expression is higher in males compared to females, from as early as day 3.5–4.5 (stage 20–25) (Fig. 2). Significantly, while many Z-linked genes in chicken map to both Z and W chromosomes of ratites, excluding them as universal avian sex determinants, DMRT1 maps onl ...
... gonads and Müllerian ducts, where expression is higher in males compared to females, from as early as day 3.5–4.5 (stage 20–25) (Fig. 2). Significantly, while many Z-linked genes in chicken map to both Z and W chromosomes of ratites, excluding them as universal avian sex determinants, DMRT1 maps onl ...
Sexual selection, sexual conflict and the evolution of ageing and life
... clear-cut, or fails entirely, in relation to species with secondarily convergent sexual strategies, such as monogamous or sex rolereversed animals, as well as in species with age-dependent expression of male secondary sexual traits, where male reproductive rate often increases with age. These consid ...
... clear-cut, or fails entirely, in relation to species with secondarily convergent sexual strategies, such as monogamous or sex rolereversed animals, as well as in species with age-dependent expression of male secondary sexual traits, where male reproductive rate often increases with age. These consid ...
2D:4D
... up for the study and received extra credit in their respective course for participating. Males (N = 62) mean age was 23.10 years. Females (N =81) mean age was 22.86. Procedures Subjects completed a demographic questionnaire asking questions about their sexual history. Then they completed the Buss an ...
... up for the study and received extra credit in their respective course for participating. Males (N = 62) mean age was 23.10 years. Females (N =81) mean age was 22.86. Procedures Subjects completed a demographic questionnaire asking questions about their sexual history. Then they completed the Buss an ...
Genetic analysis of orgasmic function in twins and siblings does not
... by-product theory (Barash 2005; Judson 2005). In a subsequent study addressing these concerns, Wallen & Lloyd (2008) claimed to provide evidence for the by-product theory by showing that human clitoris length was proportionally more variable than penis length, purportedly demonstrating stabilizing s ...
... by-product theory (Barash 2005; Judson 2005). In a subsequent study addressing these concerns, Wallen & Lloyd (2008) claimed to provide evidence for the by-product theory by showing that human clitoris length was proportionally more variable than penis length, purportedly demonstrating stabilizing s ...
Dunn 1..7 - Science Advances
... on sexual dichromatism limits our ability to determine how and why monochromatism arises. For example, why are both sexes colorful or both dull? Evolutionary transitions to monochromatism may actually be more common than transitions to dichromatism (11, 12), but it is not known what factors produce ...
... on sexual dichromatism limits our ability to determine how and why monochromatism arises. For example, why are both sexes colorful or both dull? Evolutionary transitions to monochromatism may actually be more common than transitions to dichromatism (11, 12), but it is not known what factors produce ...
1 Human sex differentiation and its abnormalities
... throughout the chapter. Additionally, information pertaining to relevant Internet websites and patient support groups are provided, so that medical staff can educate their patients about the availability of these resources. Key words: sex; gender; sex differentiation disorders; sex chromosome abnorm ...
... throughout the chapter. Additionally, information pertaining to relevant Internet websites and patient support groups are provided, so that medical staff can educate their patients about the availability of these resources. Key words: sex; gender; sex differentiation disorders; sex chromosome abnorm ...
Strategic Self-Promotion and Competitor
... Buss and Schmitt ( 1993) argued that many important adaptive problems are highly context specific and sex specific. Both men and women have faced temporally unique problems in long-term versus short-term mating contexts. As a result, women and men possess distinct short-term and long-term mating psy ...
... Buss and Schmitt ( 1993) argued that many important adaptive problems are highly context specific and sex specific. Both men and women have faced temporally unique problems in long-term versus short-term mating contexts. As a result, women and men possess distinct short-term and long-term mating psy ...
The Power of Prestige: Why Young Men Report
... male and female targets with many sexual partners. Unlike Jonason (2007), who used interval data to assess sexual success, we assessed it with ratio data via self-reports of lifetime sex partners. We predicted that the degree of prestige assigned to male and female targets with many sex partners wou ...
... male and female targets with many sexual partners. Unlike Jonason (2007), who used interval data to assess sexual success, we assessed it with ratio data via self-reports of lifetime sex partners. We predicted that the degree of prestige assigned to male and female targets with many sex partners wou ...
Optimal climbing speed explains the evolution of extreme sexual
... to the fact that the evolutionary processes that we can measure in current time do not necessarily reflect adaptive evolution occurring in the past. Hence, selection against these phenotypes may be very difficult to detect if the range of phenotypic variation is not enhanced experimentally (Kingsolv ...
... to the fact that the evolutionary processes that we can measure in current time do not necessarily reflect adaptive evolution occurring in the past. Hence, selection against these phenotypes may be very difficult to detect if the range of phenotypic variation is not enhanced experimentally (Kingsolv ...
Theories of Sexual Coercion: Evolutionary, Feminist, and Biosocial
... act, but an act of violence. Violence asserts power, and men use this to dominate women. This theory views rape as emerging from a social framework that emphasizes group conflict. Since males have constructed a patriarchal society in which men are holders of wealth and power, they engage in behavior ...
... act, but an act of violence. Violence asserts power, and men use this to dominate women. This theory views rape as emerging from a social framework that emphasizes group conflict. Since males have constructed a patriarchal society in which men are holders of wealth and power, they engage in behavior ...
altruism, sexual selection and causes of male reproductive
... our definition and those that do not. We note that our categories closely parallel the four types of cooperative reproduction proposed by Taborsky (2009) for fish. Cooperative display coalitions Cooperative display coalitions occur when two or more males congregate and coordinate their behaviours to a ...
... our definition and those that do not. We note that our categories closely parallel the four types of cooperative reproduction proposed by Taborsky (2009) for fish. Cooperative display coalitions Cooperative display coalitions occur when two or more males congregate and coordinate their behaviours to a ...
Cooperating to compete: altruism, sexual selection
... our definition and those that do not. We note that our categories closely parallel the four types of cooperative reproduction proposed by Taborsky (2009) for fish. Cooperative display coalitions Cooperative display coalitions occur when two or more males congregate and coordinate their behaviours to a ...
... our definition and those that do not. We note that our categories closely parallel the four types of cooperative reproduction proposed by Taborsky (2009) for fish. Cooperative display coalitions Cooperative display coalitions occur when two or more males congregate and coordinate their behaviours to a ...
parent-offspring conflict over mating: a replication and extension study
... tested this prediction in a sample of British parents and found that good looks are preferred significantly more in a spouse than in an in-law. Similarly, Buunk et al. (2008) found that individuals consider an unattractive mating candidate more unacceptable than they think their parents would. Paren ...
... tested this prediction in a sample of British parents and found that good looks are preferred significantly more in a spouse than in an in-law. Similarly, Buunk et al. (2008) found that individuals consider an unattractive mating candidate more unacceptable than they think their parents would. Paren ...
Direct versus indirect sexual selection: genetic basis of colour, size
... males remain unclear. The ultraviolet (UV)/blue cap of this species is strongly sexually dichromatic (Hunt et al. 1998; Andersson et al. 1998), and its function as a sexual signal was confirmed by the findings that it was under mutual mate choice (Hunt et al. 1999) and that individuals assortatively ...
... males remain unclear. The ultraviolet (UV)/blue cap of this species is strongly sexually dichromatic (Hunt et al. 1998; Andersson et al. 1998), and its function as a sexual signal was confirmed by the findings that it was under mutual mate choice (Hunt et al. 1999) and that individuals assortatively ...
Sexualities - Breanne Fahs
... produce knowledge do matter, perhaps more than the outcomes or products of those interactions. More precisely, ‘‘love and solidarity can be articulated in the sphere of sexuality and beyond within societies that may seem ever more disconnected, atomized, and authoritarian. . .rather than supporting ...
... produce knowledge do matter, perhaps more than the outcomes or products of those interactions. More precisely, ‘‘love and solidarity can be articulated in the sphere of sexuality and beyond within societies that may seem ever more disconnected, atomized, and authoritarian. . .rather than supporting ...
Benefit or burden? - April Bleske
... access to, a highly desirable mate; for females, long-term mateships would have facilitated the acquisition of an investing father to aid offspring survival. Research supports this logic. Men and women both report high levels of effort toward long-term mating (Bleske-Rechek, VandenHeuvel, & Vander W ...
... access to, a highly desirable mate; for females, long-term mateships would have facilitated the acquisition of an investing father to aid offspring survival. Research supports this logic. Men and women both report high levels of effort toward long-term mating (Bleske-Rechek, VandenHeuvel, & Vander W ...
Fraternal Birth Order and the Maternal Immune Hypothesis of Male
... author, his colleagues, and other researchers have investigated this question in subjects examined in recent years and in subjects examined decades ago; in groups collected in England, The Netherlands, Canada, and the United States; in psychiatric patients and in nonpatient volunteers; in subjects e ...
... author, his colleagues, and other researchers have investigated this question in subjects examined in recent years and in subjects examined decades ago; in groups collected in England, The Netherlands, Canada, and the United States; in psychiatric patients and in nonpatient volunteers; in subjects e ...
swan-love
... The basic configuration here, then, includes a stylized female who functions as a subject of action but not of thought; a stylized male who functions as pure object; and a less stylized male speaker who functions as a subject of thought but not of action. Uncommonsensical as it may be, this conforma ...
... The basic configuration here, then, includes a stylized female who functions as a subject of action but not of thought; a stylized male who functions as pure object; and a less stylized male speaker who functions as a subject of thought but not of action. Uncommonsensical as it may be, this conforma ...
Don`t Tell: Military Culture and Male Rape
... Much of the limited MST research literature to date has focused predominantly on prevalence rates, which show that men are at risk for sexual trauma within the context of the military. Estimates of the percentage of service members sexually assaulted during military service vary widely, depending in ...
... Much of the limited MST research literature to date has focused predominantly on prevalence rates, which show that men are at risk for sexual trauma within the context of the military. Estimates of the percentage of service members sexually assaulted during military service vary widely, depending in ...