THIS BLOG POST IS IN REGARD TO SLUT SHAMING (FEMALE INTRASEXUAL SELECTION) IN RELATION TO FAST VERSUS SLOW MATING STRATEGIES. LIKE MY PREVIOUS POST ON FAST LIFE HISTORY STRATEGIES AND SLOW LIFE HISTORY STRATEGIES, THE BLUE WRITING CORRESPONDS TO THE FAST STRATEGY (FAST FEMALE, PHILANDERER MALE) WHILE THE RED WRITING CORRESPONDS TO THE SLOW STRATEGY (COY FEMALE, FAITHFUL MALE). I'LL START WITH SOME TWEETS CONCERNING SLUT SHAMING (FEMALE INTRASEXUAL COMPETITION) AND THEN PROGRESS TO PAPERS DISCUSSING TACTICS USED BY FEMALES TO DEROGATE THEIR RIVALS AND SUPPRESS THEIR SEXUALITY. https://porlawright.com/
Women damage other women’s reputations primarily in the realm of (promiscuous) sexuality, link.springer.com/article/10.100
Jaimie Krems shows that physically attractive women expect greater same-sex aggression if they dress more provocatively, and thus report dressing more modestly in same-sex encounters #HBES2019
"When a provocatively dressed woman left the room, women assigned to this condition laughed at her and ridiculed her appearance. When the same woman was dressed conservatively, women assigned to this condition greeted her in a friendly manner, none discussed her when she left"
"Observers correctly use women’s chokers as a cue to their short-term mating orientation." meetatbu.com/hbes19/
When white and/or Latina women brag about how much black men love them
Yes, interracial female intrasex competition is a thing, and it's rife
https://twitter.com/RealYeyoZa/status/1103399877835255813
Replies are a crash course in intrasexual competition btw
Replies are a crash course in intrasexual competition btw
http://theconversation.com/the-selfie-the-tummy-and-the-act-of-war-a-dispatch-from-the-battle-over-female-attractiveness-and-sexuality-20659
% of women and men who say it is 'acceptable' for women to be topless
At the beach
Women: 25%
Men: 54%
Swimming pool
Women: 17%
Men: 49%
Park
Women: 8%
Men: 30%
Public transport
Women: 4%
Men: 15%
We have looked at some of the things that a female might do if she has been deserted by her mate. But these all have the air of making the best of a bad job. Is there anything a female can do to reduce the extent to which her mate exploits her in the first place? She has a strong card in her hand. She can refuse to copulate. She is in demand, in a seller's market. This is because she brings the dowry of a large, nutritious egg. A male who successfully copulates gains a valuable food reserve for his offspring. The female is potentially in a position to drive a hard bargain before she copulates. Once she has copulated she has played her ace - her egg has been committed to the male. It is all very well to talk about driving hard bargains, but we know very well it is not really like that. Is there any realistic way in which something equivalent to driving a hard bargain could evolve by natural selection? I shall consider two main possibilities, called the domestic-bliss strategy, and the he-man strategy.
The simplest version of the domestic-bliss strategy is this. The female looks the male over, and tries to spot signs of fidelity and domesticity in advance. There is bound to be variation in the population of males in their predisposition to be faithful husbands. If females could recognize such qualities in advance, they could benefit themselves by choosing males possessing them. One way for a female to do this is to play hard to get for a long time, to be coy. Any male who is not patient enough to wait until the female eventually consents to copulate is not likely to be a good bet as a faithful husband. By insisting on a long engagement period, a female weeds out casual suitors, and only finally copulates with a male who has proved his qualities of fidelity and perseverance in advance. Feminine coyness is in fact very common among animals, and so are prolonged courtship or engagement periods. As we have already seen, a long engagement can also benefit a male where there is a danger of his being duped into caring for another male's child. In order for a father to support his child, he must be able to recognize it as his own. Michael Price and colleagues have found modern evidence that moral opposition against promiscuity evolves in environments where paternal care is crucial for families. https://evolution-institute.org/the-real-reason-people-think-promiscuity-is-wrong/
But sure, I'll wait for blogpost #2. But context matters of course, in a more monogamous society parental investment becomes more important since reproductive skew between men is lower.
Also, when paternal investment is important women have a lot to gain from keeping paternity certainty high since if the latter decreases so will inevitably the former. Which I think explains Baumeister's sexual economics theory
And when women compete for male investment signaling sexual fidelity will become a focal point, which could lead to a continuing game of one upmanship taking more and more extreme forms
https://twitter.com/StefanFSchubert/status/1128727123232022528
Robert Kurzban Retweeted
Weeden and Kurzban argue that pro-life attitudes is a strategy among less-promiscuous people (men and women) to make promiscuity more difficult. (They have a corresponding selfish story for pro-choice attitudes.)
Many Of Gina's Tweets Reveal Her Conservative Mating Strategy.
https://royalsocietypublishing.org/doi/full/10.1098/rstb.2013.0080?referrer=&priority=true&module=meter-Links&pgtype=article&contentId=&action=click&contentCollection=meter-links-click&version=meter+at+null&mediaId=
Considering males' preference for females as long-term partners with no, or limited, sexual experience [9], it seems curious that females would be biased against ‘promiscuous’ rivals. On balance, should females not be pleased that their competitors are engaging in behaviour that debases their mate value? According to Baumeister & Twenge [73], females are threatened by promiscuous females because ‘sex is a limited resource that women use to negotiate with men, and scarcity gives women an advantage’ (p. 166). That is, females, not males, suppress the sexuality of other females and they do so by using ‘informal sanctions such as ostracism and derogatory gossip’ (p. 172). In other words, females punish other females who seem to make sex too readily available using indirect aggression [74–77]. There are some studies supporting this line of reasoning. For example, in a study of adolescents, Leenaars et al. [44] found that for girls and not boys, recent sexual behaviour was associated with increased indirect peer victimization—a finding that was, above all, present for older adolescent girls. In another study, Vaillancourt & Sharma [78] found very strong support for women's intolerance of sexy peers. In their experiment, young women were randomly assigned in dyads to one of two conditions. In the first condition, the dyad's conversation was interrupted by an attractive female confederate who was dressed in sexy clothing; whereas in the second condition, participants were interrupted by the same confederate who was dressed in a conservative manner (figure 1). Participants were secretly video-recorded (with audio) and their reactions to the presence of the confederate were coded by independent female raters blind to condition. Results of this experiment were striking—with the exception of two women, all of the participants who were coded as engaging in indirect aggression were assigned to the sexy condition.
Considering males' preference for females as long-term partners with no, or limited, sexual experience [9], it seems curious that females would be biased against ‘promiscuous’ rivals. On balance, should females not be pleased that their competitors are engaging in behaviour that debases their mate value? According to Baumeister & Twenge [73], females are threatened by promiscuous females because ‘sex is a limited resource that women use to negotiate with men, and scarcity gives women an advantage’ (p. 166). That is, females, not males, suppress the sexuality of other females and they do so by using ‘informal sanctions such as ostracism and derogatory gossip’ (p. 172). In other words, females punish other females who seem to make sex too readily available using indirect aggression [74–77]. There are some studies supporting this line of reasoning. For example, in a study of adolescents, Leenaars et al. [44] found that for girls and not boys, recent sexual behaviour was associated with increased indirect peer victimization—a finding that was, above all, present for older adolescent girls. In another study, Vaillancourt & Sharma [78] found very strong support for women's intolerance of sexy peers. In their experiment, young women were randomly assigned in dyads to one of two conditions. In the first condition, the dyad's conversation was interrupted by an attractive female confederate who was dressed in sexy clothing; whereas in the second condition, participants were interrupted by the same confederate who was dressed in a conservative manner (figure 1). Participants were secretly video-recorded (with audio) and their reactions to the presence of the confederate were coded by independent female raters blind to condition. Results of this experiment were striking—with the exception of two women, all of the participants who were coded as engaging in indirect aggression were assigned to the sexy condition.
"She Had A Pretty Little Body, But She Always Wore Baggy Clothes!" - Fruity Like A Smoov-E!
As I showed in a paper, there is a mistake in Triver's reasoning here. He thought that prior investment in itself committed an individual to future investment. This is fallacious economics. A business man should never say 'I have already invested so much in the Concorde airliner (for instance) that I cannot afford to scrap it now.' He should always ask instead whether it would pay him in the future, to cut his losses, and abandon the project now, even though he has already invested heavily in it. Similarly, it is no use a female forcing a male to invest heavily in her in the hope that this, on its own, will deter the male from subsequently deserting. This version of the domestic-bliss strategy depends upon one further crucial assumption. This is that a majority of the females can be relied upon to play the same game. If there are loose females in the population, prepared to welcome males who have deserted their wives, then it could pay a male to desert his wife, no matter how much he has already invested in her children.
https://twitter.com/DegenRolf/status/1076395604769718272
Women were more likely than men "to cast the first stone", inflicting costly punishment on promiscuous fellow-females. sciencedirect.com/science/articl
https://www.sciencedirect.com/science/article/pii/S1090513818303064
In many primate species females restrict the sexual behavior of other females, attacking them for seeking contact with males, even stopping them from ovulating.
Why do some find it so hard to believe that women might sometimes be intrinsically motivated to do the same?
"She'll Have A Pickett Sign In Her Hand From Sun Up To Sun Down!" - Mac Much therefore depends on how the majority of females behave. If we were allowed to think in terms of a conspiracy of females there would be no problem. But a conspiracy of females can no more evolve than the conspiracy of doves which we considered in Chapter 5. Instead, we must look for evolutionary stable strategies. Let us take Maynard Smith's method of analysing aggressive contests, and apply it to sex. It will be a little bit more complicated than the case of the hawks and doves, because we shall have two female strategies and two male strategies.
As in Maynard Smith's studies, the word 'strategy' refers to a blind unconscious behavior program. Our two female strategies will be called coy and fast, and the two male strategies will be called faithful and philanderer. The behavioural rules of the four types are as follows. Coy females will not copulate with a male until he has gone through a long and expensive courtship period lasting several weeks. Fast females will copulate immediately with anybody. Faithful males are prepared to go on courting for a long time, and after copulation they stay with the female and help her to rear the young. Philanderer males lose patience quickly if a female will not copulate with them straight away: they go off and look for another female; after copulation too they do not stay and act as good fathers, but go off in search of fresh females. As in the case of the hawks and doves, these are not the only possible strategies, but it is illuminating to study their fates nevertheless.
Like Maynard Smith, we shall use some arbitrary hypothetical values for the various costs and benefits. To be more general it can be done with algebraic symbols, but numbers are easier to understand. Suppose that the genetic pay-off gained by each parent when a child is reared successfully is +15 units. The cost of rearing one child, the cost of all its food, all the time spent looking after it, and all the risks taken on its behalf, is -20 units. The cost is expressed as negative, because it is 'paid out' by the parents. Also negative is the cost of wasting time in prolonged courtship. Let this cost be -3 units.
Imagine if we have a population in which all the females are coy, and all the males are faithful. It is an ideal monogamous society. In each couple, the male and female both get the same average pay-off. They get +15 for each child reared; they share the cost of rearing it (-20) equally between the two of them, and average of -10 each. They both pay the -3 point penalty for wasting time in prolonged courtship. The average pay-off for each is therefore +10-10-3 = +2.
Now suppose a single fast female enters the population. She does very well. She does not pay the cost of delay, because she does not indulge in prolonged courtship. Since all the males in the population are faithful, she can reckon on finding a good father for her children whoever she mates with. Her average pay-off per child is +15-10 = +5. She is 3 units better off than her coy rivals. Therefore fast genes will start to spread.
If the success of fast females is so great that they come to predominate in the population, things will start to change in the male camp too. So far, faithful males have had a monopoly. But now if a philanderer male arises in the population, he starts to do better than his faithful rivals. In a population where all the females are fast, the pickings for a philanderer male are rich indeed. He gets the +15 points if a child is successfully reared, and he pays neither of the two costs. What this lack of cost mainly means to him is that he is free to go off and mate with new females. Each of his unfortunate wives struggles on alone with the child, paying the entire -20 point cost, although she does not pay anything for wasting time in courting. The net pay-off for a fast female when she encounters a philanderer male is +15-20 = -5; the pay-off to the philanderer himself is +15. In a population in which all the females are fast, philanderer genes will spread like wildfire.
If the philanderers increase so successfully that they come to dominate the male part of the population, the fast females will be in dire straits. Any coy female would have a strong advantage. If a coy
female encounters a philanderer male, no business results. She insists on prolonged courtship; he refuses and goes off in search of another female. Neither partner pays the cost of wasting time. Neither gains anything either, since no child is produced. This gives
a net pay-off of zero for a coy female in a population where all the males are philanderers. Zero may not seem much, but it is better than the -5 which is the average score for a fast female. Even if a fast
female decided to leave her young after being deserted by a philanderer, she would still have paid the considerable cost of an egg. So, coy genes start to spread through the population again.
To complete the hypothetical cycle, when coy females increase in numbers so much that they predominate, the philanderer males, who had such an easy time with the fast females, start to feel the pinch. Female after female insists on a long and arduous courtship. The philanderers flit from female to female, and always the story is the same. The net pay-off for a philanderer male when all the females are coy is zero. Now if a single faithful male should turn up, he is the only one with whom the coy females will mate. His net pay-off is +2, better than that of the philanderers. So, faithful genes start to increase, and we come full circle.
As in the case of the aggression analysis, I have told the story as though it was an endless oscillation. But, as in that case, it can be shown that really there would be no oscillation. The system would converge to a stable state. If you do the sums, it turns out that a population in which 5/6 of the females are coy, and 5/8 of the males faithful, is evolutionarily stable. This is, of course, just for the particular arbitrary numbers that we started out with, but it is easy to work out what the stable ratios would be for any other arbitrary assumptions.
As in Maynard Smith's analyses, we do not have to think of there being two different sorts of male and two different sorts of female.The ESS could equally well be achieved if each male spends 5/8 of his time being faithful and the rest of his time philandering; and each female spends 5/6 of her time being coy and 1/6 of her time being fast. Whichever way we think of the ESS, what it means is this. Any tendency for members of either sex to deviate from their appropriate stable ratio will be penalized by a consequent change in the ratio of strategies of the other sex, which is, in turn, to the disadvantage of the original deviant. Therefore the ESS will be preserved.
We can conclude that it is certainly possible for a population consisting largely of coy females and faithful males to evolve. In these circumstances the domestic-bliss strategy for females really does seem to work. We do not have to think in terms of a conspiracy of coy females. Coyness can actually pay a female's selfish genes.
Demanding that a prospective mate should build a nest is one effective way for a female to trap him. It might be thought that almost anything that costs the male a great deal would do in theory, even if that cost is not directly paid in the form of benefit to the unborn children. If all females of a population forced males to do some difficult and costly deed, like slaying a dragon or climbing a mountain, before they would consent to copulate with them, they could in theory be reducing the temptation for the males to desert after copulation. Any male tempted to desert his mate and try to spread more of his genes by another female, would be put off by the thought that he would have to kill another dragon. In practice,
however, it is unlikely that females would impose such arbitrary tasks as dragon-killing, or Holy-Grail-seeking on their suitors. The reason is that a rival female who imposed a task no less arduous, but
more useful to her and her children, would have an advantage over more romantically minded females who demanded a pointless labour of love. Building a nest may be less romantic than slaying a dragon or swimming the Hellespont, but it is much more useful.
Also useful to the female is the practice I have already mentioned of courtship feeding by the male. In birds this has usually been regarded as a kind of regression to juvenile behaviour on the part of the female. She begs from the male, using the same gestures as a young bird would use. It has been supposed that this is automatically attractive to the male, in the same way as a man finds a lisp or pouting lips attractive in an adult woman. The female bird at this time needs all the extra food she can get, for she is building up her reserves for the effort of manufacturing her enormous eggs. Courtship feeding by the male probably represents direct investment by him in the eggs themselves. It therefore has the effect of reducing the disparity between the two parents in their initial investment in the young.
Several insects and spiders also demonstrate the phenomenon of courtship feeding. Here an alternative interpretation has sometimes been only too obvious. Since, as in the case of the praying mantis, the male may be in danger of being eaten by the larger female, anything that he can do to reduce her appetite maybe to his advantage. There is a macabre sense in which the unfortunate male mantis can be said to invest in his children. He is used as food to help make the eggs which will then be fertilized, posthumously, by his own stored sperms.
A female, playing the domestic-bliss strategy, who simply looks the males over and tries to recognize qualities of fidelity in advance, lays herself open to deception. Any male who can pass himself off as a good loyal domestic type, but who in reality is concealing a strong tendency towards desertion and unfaithfulness, could have a great advantage. As long as his deserted former wives have any chance of bringing up some of the children, the philanderer stands to pass on more genes than a rival male who is an honest husband and father. Genes for effective deception by males will tend to be favoured in the gene pool.
Conversely, natural selection will tend to favour females who become good at seeing through such deception. One way they can do this is to play especially hard to get when they are courted by a new male, but in successive breeding seasons to be increasingly ready to accept quickly the advances of last year's mate. This will automatically penalize young males embarking on their first breeding season, whether they are deceivers or not. The brood of naive first year females would tend to contain a relatively high proportion of genes from unfaithful fathers, but faithful fathers have the advantage in the second and subsequent years of a mother's life, for they do not have to go through the same prolonged energy-wasting and time-consuming courtship rituals. If the majority of individuals in a population are the children of experienced rather than naive mothers—a reasonable assumption in any long-lived species—genes for honest, good fatherhood will come to prevail in the gene pool.
For simplicity, I have talked as though a male were either purely honest or thoroughly deceitful. In reality it is more probable that all males, indeed all individuals, are a little bit deceitful, in that they are
programmed to take advantage of opportunities to exploit their mates. Natural selection, by sharpening up the ability of each partner to detect dishonesty in the other, has kept large-scale deceit down to a fairly low level. Males have more to gain from dishonesty than females, and we must expect that, even in those species where males show considerable parental altruism, they will usually tend to do a bit less work than the females, and to be a bit more ready to abscond. In birds and mammals this is certainly normally the case. (The Selfish Gene)
Women more often derogate other women’s promiscuity and physical attractiveness on social media, while men more often derogate other men on their abilities, reflecting both sexes' evolutionary achilles' heels. psycnet.apa.org/record/2018-49
Evolution never prepared female intrasexual competition for inventions like social media and photoshop
I've always said social media is to female intrasexual competition what the handgun is to male
http://blogs.discovermagazine.com/discoblog/2013/02/08/ncbi-rofl-how-other-women-view-your-sexy-outfit/#.XbyybjNKhaQ
>Fat girl poses in a bikini
Feminists: so confident, beautiful, brave, body positivity woohoo
https://twitter.com/RealYeyoZa/status/1177862754880950272
Agree, just that intrasexual competition explains a lot (not everything, but a lot) about nastiness and insults in both sexes
https://www.semanticscholar.org/paper/Intolerance-of-sexy-peers%3A-intrasexual-competition-Vaillancourt-Sharma/1f9d8938184328a4021dd37d1a7ceb0e37392495
https://www.sciencedirect.com/science/article/pii/S1090513805000577
https://www.medicaldaily.com/psychology-bitchiness-women-use-slut-shaming-defense-tactic-263531
The Short Skirt Police: Feminist Fundamentalism At PAX http://www.advicegoddess.com/archives/2017/03/13/the_short_skirt.html#.WMaYdDl9ruI.twitter …
#PAX via @Yeyoza
https://www.psypost.org/2018/12/women-but-not-men-seek-to-actively-punish-sexualized-women-study-finds-5283
https://www.youtube.com/watch?v=55M_9U6_lE4
Competencia intrasexual (English)
"attractiveness of a female rival provoked women’s jealousy, greater extent than it did men’s, effect size was small...male rival’s dominance...no good evidence this [especially] affected men’s jealousy" journals.sagepub.com/doi/abs/10.117
