Sexual Selection Favors Female‐Biased Sex Ratios: The Balance
... When the cost of producing a male equals the cost of producing a female, natural selection acting on autosomal genes favors an equal sex ratio (Fisher 1930; Frank 1983). This observation appears in most textbooks on evolution (e.g., Freeman and Herron 1998, p. 624; Futuyma 1998, pp. 613–616; Ridley ...
... When the cost of producing a male equals the cost of producing a female, natural selection acting on autosomal genes favors an equal sex ratio (Fisher 1930; Frank 1983). This observation appears in most textbooks on evolution (e.g., Freeman and Herron 1998, p. 624; Futuyma 1998, pp. 613–616; Ridley ...
Age-advertisement and the evolution of the peacock`s train
... crests, pectoral bibs or elongated tail feathers. Outstanding among these speciesis the blue peacock (Pauo cristatus) with its long covert feathers, most of which end in vividly coloured ocelli. Such structures are probably costly, so how did they evolve? There are four possible answers which invoke ...
... crests, pectoral bibs or elongated tail feathers. Outstanding among these speciesis the blue peacock (Pauo cristatus) with its long covert feathers, most of which end in vividly coloured ocelli. Such structures are probably costly, so how did they evolve? There are four possible answers which invoke ...
Prejudice at the Nexus of Race and Gender: An Outgroup Male
... In clarifying the evolutionary assumptions of current evolutionary accounts of intergroup bias, we affirm a core feature of the subordinate male target hypothesis (Sidanius & Veniegas, 2000), in that we expect men to be the primary targets of negativity in most intergroup contexts. However, we make ...
... In clarifying the evolutionary assumptions of current evolutionary accounts of intergroup bias, we affirm a core feature of the subordinate male target hypothesis (Sidanius & Veniegas, 2000), in that we expect men to be the primary targets of negativity in most intergroup contexts. However, we make ...
Motivation
... Social psychologists suggest that males sexual behavior is more biologically determined while females sexual desires and responsiveness are more affected by circumstances, the specific relationship and cultural norms. ©1999 Prentice Hall ...
... Social psychologists suggest that males sexual behavior is more biologically determined while females sexual desires and responsiveness are more affected by circumstances, the specific relationship and cultural norms. ©1999 Prentice Hall ...
Sensory exploitation and sexual conflict
... variation among males in the direct effects they have on female fitness. I will refer to this here as a Darwinian origin. This is a less problematic hypothesis than that suggested by Fisher (1930), since it does not rely on standing genetic variation in the breeding value for fitness among males. Fo ...
... variation among males in the direct effects they have on female fitness. I will refer to this here as a Darwinian origin. This is a less problematic hypothesis than that suggested by Fisher (1930), since it does not rely on standing genetic variation in the breeding value for fitness among males. Fo ...
Does tusker`s attacks on female elephants are indicating towards
... elephants, various workers have explained this in different ways. In this stage, male elephants undergo noticeable physiological and behavioural changes. A fluid could be seen easily, secreting from the temporal gland located in between eyes and the ears. Besides, a strong pungent smell could also b ...
... elephants, various workers have explained this in different ways. In this stage, male elephants undergo noticeable physiological and behavioural changes. A fluid could be seen easily, secreting from the temporal gland located in between eyes and the ears. Besides, a strong pungent smell could also b ...
Hebephilia Is Not a Mental Disorder in DSM-IV
... Furthermore, the parenthetical phrase (generally 13 years or younger) modifying the word children has been used in some SVP commitment cases to argue that a sexual offense against any 13-year-old would qualify under the diagnosis of pedophilia, regardless of whether the child is pubescent. As is oft ...
... Furthermore, the parenthetical phrase (generally 13 years or younger) modifying the word children has been used in some SVP commitment cases to argue that a sexual offense against any 13-year-old would qualify under the diagnosis of pedophilia, regardless of whether the child is pubescent. As is oft ...
preprint - Open Science Framework
... which stands in contrast to romantic love, which is often rooted in “domestic subjection” (Giddens 1992:62). It should come as little surprise then that the rise of confluent love and sexual intimacy in couples coincides strongly with decreases in gender inequality since the mid20th century. Althoug ...
... which stands in contrast to romantic love, which is often rooted in “domestic subjection” (Giddens 1992:62). It should come as little surprise then that the rise of confluent love and sexual intimacy in couples coincides strongly with decreases in gender inequality since the mid20th century. Althoug ...
Title of Course: Unusual Psychosexual Syndromes, Part 2
... drop of pleasure from his quivering, satiated body. She lives only for him, a toy, a love slave, his perfect partner. Yet somehow, almost unbelievably, at some point the unquenchable hunger and need beneath her aggressive pursuit begins to trigger little warning signals in his brain. He decides to s ...
... drop of pleasure from his quivering, satiated body. She lives only for him, a toy, a love slave, his perfect partner. Yet somehow, almost unbelievably, at some point the unquenchable hunger and need beneath her aggressive pursuit begins to trigger little warning signals in his brain. He decides to s ...
“Born Again Hard”: Sexualized Violence in the Creation of American
... Joker embraces the sexually violent attitude toward women learned in basic training, legitimizing their objectification during the Tet Offensive portion of the film. Through his language, “Ya know, half of these gook whores are serving officers in the Viet Cong; the other half have got T.B. Be sure ...
... Joker embraces the sexually violent attitude toward women learned in basic training, legitimizing their objectification during the Tet Offensive portion of the film. Through his language, “Ya know, half of these gook whores are serving officers in the Viet Cong; the other half have got T.B. Be sure ...
Local adaptation and the evolution of female choice
... The evolution of mate choice remains controversial, particularly when the choosy sex (typically females) receives nothing but genes (‘indirect benefits’) from their mates. Indirect benefits are predicted to be meagre because persistent female choice depletes genetic variation in the male traits unde ...
... The evolution of mate choice remains controversial, particularly when the choosy sex (typically females) receives nothing but genes (‘indirect benefits’) from their mates. Indirect benefits are predicted to be meagre because persistent female choice depletes genetic variation in the male traits unde ...
Reconstructing Custom: The politics of homophobia in Vanuatu
... domestic violence between two lesbians:17 According to Chief Mariasua [chairman of the Malvatumauri] homosexuality is something foreign. “Custom chiefs hate this kind of relationship and don’t want it to grow.” He went on to say: “If a woman wants to marry, marry a man. This system of woman to woman ...
... domestic violence between two lesbians:17 According to Chief Mariasua [chairman of the Malvatumauri] homosexuality is something foreign. “Custom chiefs hate this kind of relationship and don’t want it to grow.” He went on to say: “If a woman wants to marry, marry a man. This system of woman to woman ...
ecological differentiation of combined and separate sexes of
... compensation). This prediction has been supported by a recent theoretical model, which further proposes that the sex with the lower total reproductive expenditure should be favored in poor environments (De Laguérie et al. 1993). Delph (1990b) showed that the seed fitness of female plants relative t ...
... compensation). This prediction has been supported by a recent theoretical model, which further proposes that the sex with the lower total reproductive expenditure should be favored in poor environments (De Laguérie et al. 1993). Delph (1990b) showed that the seed fitness of female plants relative t ...
Sexual Relations between Psychotherapists and Their Patients
... The greatest negation of professional responsibility is taking advantage of an essentially defenseless patient-but it often happens. . ...
... The greatest negation of professional responsibility is taking advantage of an essentially defenseless patient-but it often happens. . ...
Universal Sex Differences in the Desire for Sexual Variety: Tests
... competitive, especially over gaining sexual access to members of the opposite sex. That is, the lesser investing sex (e.g., male elephant seals; Le Boeuf, 1974) is reliably more aggressive with their own sex, tends to die earlier, tends to mature later, and generally competes for mates with more vig ...
... competitive, especially over gaining sexual access to members of the opposite sex. That is, the lesser investing sex (e.g., male elephant seals; Le Boeuf, 1974) is reliably more aggressive with their own sex, tends to die earlier, tends to mature later, and generally competes for mates with more vig ...
Do exaggerated sexual swellings function in female mating
... with increased female mating synchrony because male discrimination among females is more important when females mate synchronously (Pagel, 1994a; Radwan, 1995). Whereas Pagel’s (1994a) ESS formulation of male–male competition makes no assumptions regarding mating synchrony (Pagel, 1995), field and l ...
... with increased female mating synchrony because male discrimination among females is more important when females mate synchronously (Pagel, 1994a; Radwan, 1995). Whereas Pagel’s (1994a) ESS formulation of male–male competition makes no assumptions regarding mating synchrony (Pagel, 1995), field and l ...
Rape Myth Beliefs and Bystander Attitudes Among Incoming
... willingness to intervene may be impacted by their perception of rape victims’ “worthiness,” responsibility for their own assault, and beliefs in other rape myths.15 The present study further explores the relationship between acceptance of rape myths and willingness to engage in a range of bystander ...
... willingness to intervene may be impacted by their perception of rape victims’ “worthiness,” responsibility for their own assault, and beliefs in other rape myths.15 The present study further explores the relationship between acceptance of rape myths and willingness to engage in a range of bystander ...
GNEC - Sexuality in Older Adults
... Sexual needs among older adults often manifest in inappropriate sexual behavior. In a study of older, cognitively impaired older adults, 1.8% had sexually inappropriate behavior manifesting in verbal and physical problems. In a study that used computed tomography (CT) of the head to scan 10 patients ...
... Sexual needs among older adults often manifest in inappropriate sexual behavior. In a study of older, cognitively impaired older adults, 1.8% had sexually inappropriate behavior manifesting in verbal and physical problems. In a study that used computed tomography (CT) of the head to scan 10 patients ...
body irradiation transplantation: impact of chronic graft
... hematopoietic cell transplantation (HCT) to 3 years after in 131 allogeneic and 146 • Before HCT 61% of men and autologous HCT recipients using Derogatis Interview for Sexual Function and 37% of women were sexually Derogatis Global Sexual Satisfaction Index. Sixty-one percent of men and 37% of activ ...
... hematopoietic cell transplantation (HCT) to 3 years after in 131 allogeneic and 146 • Before HCT 61% of men and autologous HCT recipients using Derogatis Interview for Sexual Function and 37% of women were sexually Derogatis Global Sexual Satisfaction Index. Sixty-one percent of men and 37% of activ ...
Married Men`s Views on Gender Rights and Sexuality in a Northwest
... track, for giving me new knowledge to guide my footsteps like a newborn child. Her cooperation, valuable time and suggestions have made it possible for me to complete my study. Without her enthusiasm and careful labor, it would not have been possible to submit this thesis on time. It gives me great ...
... track, for giving me new knowledge to guide my footsteps like a newborn child. Her cooperation, valuable time and suggestions have made it possible for me to complete my study. Without her enthusiasm and careful labor, it would not have been possible to submit this thesis on time. It gives me great ...
Genetic Influences on Female Infidelity and Number of
... British families, the ‘nonpaternity rate’ — the rate at which children in families are biologically unrelated to the presumed ‘father’ — has been estimated at 1% to 1.35%, while studies of other groups have generated nonpaternity estimates ranging from less than 1% to as much as 30% depending on the ...
... British families, the ‘nonpaternity rate’ — the rate at which children in families are biologically unrelated to the presumed ‘father’ — has been estimated at 1% to 1.35%, while studies of other groups have generated nonpaternity estimates ranging from less than 1% to as much as 30% depending on the ...
swan
... prepared for a tableau of a Herculean choice: two spirits, one at each hand, luring the speaker— to hell? to heaven? But it is just here that the poem's promise of symmetry starts to derail. (i) There is no mention of heaven, no active wooing by the better angel. (This sends us back to note that "co ...
... prepared for a tableau of a Herculean choice: two spirits, one at each hand, luring the speaker— to hell? to heaven? But it is just here that the poem's promise of symmetry starts to derail. (i) There is no mention of heaven, no active wooing by the better angel. (This sends us back to note that "co ...
Steffey, S.K., Gibson, B.W., & Dula, C. S. (2011, March). Childhood
... experiences (Allen, 1995; Davis, 1996; Davis & Frawley, 1994; Herman, 1992; Rogers, 1995). Limitations • Though it is plausible that childhood maltreatment causes adulthood depression, the nature of correlational research prohibits making such a statement. Additionally, the sample was relatively hom ...
... experiences (Allen, 1995; Davis, 1996; Davis & Frawley, 1994; Herman, 1992; Rogers, 1995). Limitations • Though it is plausible that childhood maltreatment causes adulthood depression, the nature of correlational research prohibits making such a statement. Additionally, the sample was relatively hom ...
Kinship Terms
... • Since there are very few Ju/’hoansi children in each village, competitive games would be hard to organize since it would be difficult to find an age-mate to compete with, much less enough to form viable team sports. This accords with the Ju/’hoansi cultural opposition to competitiveness. While the ...
... • Since there are very few Ju/’hoansi children in each village, competitive games would be hard to organize since it would be difficult to find an age-mate to compete with, much less enough to form viable team sports. This accords with the Ju/’hoansi cultural opposition to competitiveness. While the ...
Considerations for a Better Definition of Male Orgasmic Disorder
... latency may have been purposely delaying ejaculation, while other men may not have been able to ejaculate. Also, some men become distressed if they are unable to ejaculate after 5–10 minutes of active thrusting and then cease sexual activity at that point. It is also unclear if a similar time limit ...
... latency may have been purposely delaying ejaculation, while other men may not have been able to ejaculate. Also, some men become distressed if they are unable to ejaculate after 5–10 minutes of active thrusting and then cease sexual activity at that point. It is also unclear if a similar time limit ...
Human male sexuality
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Human male sexuality covers physiological, psychological, social, cultural, and political aspects of the human male sexual response and related phenomenon. It encompasses a broad range of issues, including male sexual desires and behaviors which as a part of human sexuality, have also been addressed by principles of ethics, morality, and religion.