Evolutionary reasons for hypergamy

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Discussion Overview

The discussion explores the evolutionary reasons behind hypergamy, focusing on its historical benefits, implications for offspring, and the dynamics of social hierarchies. Participants examine various aspects, including resource acquisition, genetic transmission, and the role of risk-taking in mate selection.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants suggest that hypergamy may have historically provided direct benefits, such as better resources for offspring, but question whether such benefits exist today.
  • Others argue that marrying up could lead to better survival chances for offspring, although this comes with risks if the relationship ends.
  • There is a discussion about the potential for "better genes" being more about the survival and proliferation of successful genes rather than simply acquiring superior genetic material.
  • Some participants highlight the importance of the number of offspring that reproduce in the next generation as a key consideration in the context of hypergamy.
  • Risk-taking behavior is discussed as potentially advantageous from an evolutionary perspective, with examples drawn from modern preferences for bold individuals.
  • Concerns are raised about conflating modern views with historical evolutionary contexts, suggesting that criteria for mate selection have varied significantly across cultures and time periods.
  • There is mention of the selection process for traits like "daredevilness," with some arguing that such traits may be favored in mating contexts.
  • Participants discuss the dynamics of sexual selection, noting that women often prefer men who are equal to or above them in social status, which is linked to competition among men for reproductive success.
  • Some participants challenge the notion that men who do not father children are simply unable to attract women, citing factors like homosexuality, infertility, and celibacy as additional considerations.

Areas of Agreement / Disagreement

Participants express a range of views on the evolutionary implications of hypergamy, with no clear consensus reached. Multiple competing perspectives exist regarding the benefits and risks associated with marrying up, the role of social hierarchy, and the factors influencing reproductive success.

Contextual Notes

Participants note that assumptions about historical behaviors and modern interpretations may not align, and there are unresolved complexities regarding the definitions of success in genetic transmission and mate selection.

FallenApple
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Surely at some point in history, there was a direct benefit. Is there any now? Does one get better genes for their offspring by going this route?
 
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This would be impossible to determine. It seems the risk of marrying-up in a tribe would mean better food for the offspring. However, it seems it could be risky once that relationship ends because the leader found another mate or the leader was killed.

https://en.wikipedia.org/wiki/Hypergamy
 
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jedishrfu said:
This would be impossible to determine. It seems the risk of marrying-up in a tribe would mean better food for the offspring. However, it seems it could be risky once that relationship ends because the leader found another mate or the leader was killed.

https://en.wikipedia.org/wiki/Hypergamy

Assuming the leader has a higher chance of being killed than an average member of the tribe. Also, the ability to acquire resources could be a proxy for good genes.

I see your point. If the relationship with the leader ends, the child could be at more risk than otherwise compared to a relationship ending with an average member.
 
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jedishrfu said:
it could be risky once that relationship ends because the leader found another mate or the leader was killed.
The other end of the deal is to secure loyalty for the leader. With the risk of the offspring dies after the leader it is beneficial to support the leader.

FallenApple said:
better genes
A small misunderstanding here. This part of the evolution is not about 'getting better genes': it is about securing the survival and spreading of genes. IF it is successful, then it might lead to more 'marry up' genes appearing in society and getting the title of 'better genes' (more accurately: successful genes) through numbers.
I mean, if it has anything to do with genes at all.

Guess it is safe to say that this strategy is not a complete failure since it is still exists o0)
 
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The main consideration will be the effect the number of offspring that reproduce in the next generation (fertile offspring).

Marrying up seems to mean access to more resources. This is almost always good for reproduction.

If the length of occupancy at the top of the hierarchy exceeds the time it takes for its first set of offspring to mature and go away;
seems the revenge argument would carry less power (since only the current set of offspring would be in danger).
 
BillTre said:
The main consideration will be the effect the number of offspring that reproduce in the next generation (fertile offspring).

Marrying up seems to mean access to more resources. This is almost always good for reproduction.

If the length of occupancy at the top of the hierarchy exceeds the time it takes for its first set of offspring to mature and go away;
seems the revenge argument would carry less power (since only the current set of offspring would be in danger).

Yes, it seems like risk taking is advantageous from an evolutionary standpoint if it's a one time risk. Another example is women being into bold daredevil men. I can't help but think that its because the expected returns for these venturers are in the net positive.
 
FallenApple said:
Yes, it seems like risk taking is advantageous from an evolutionary standpoint if it's a one time risk. Another example is women being into bold daredevil men. I can't help but think that its because the expected returns for these venturers are in the net positive.

You have to be careful here not to conflate modern day thoughts with evolutionary thoughts. I don't think women looked at men as daredevils wayback when. There were other criteria which changes from culture to culture and from time to time.
 
The successful daredevils will (by definition) transmit more of any genes underlying their behavior to the next generation, then the less successful daredevils (dead or damaged, non-reproductive).
Less successful daredevils should be filtered out of the breeding population.
It might make it a better choice to select from genetically.
 
jedishrfu said:
You have to be careful here not to conflate modern day thoughts with evolutionary thoughts. I don't think women looked at men as daredevils wayback when. There were other criteria which changes from culture to culture and from time to time.
Well yeah, back then the daredevils were warrriors. Now, they are probably business men. I mean it makes perfect sense for women to prefer risk takers. Because of the potential resources obtained for future generations. It's good for men to embark on such a strategy as well. At least in evolutionary terms. For example, If I were to take some risky business venture and fail, I am done for. Women would not want to date a broke guy, but my brothers will carry forward the family gene so it's not too bad. If I succeed, then my offspring and their offsprings will have more than enough resources, justifying the one time risk.
 
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BillTre said:
The successful daredevils will (by definition) transmit more of any genes underlying their behavior to the next generation, then the less successful daredevils (dead or damaged, non-reproductive).
Less successful daredevils should be filtered out of the breeding population.
It might make it a better choice to select from genetically.

And at every generation, the there is selection for more daredevil like tendencies. Just like there is selection for partners of greater heights. Everyone is tall compared to Lucy. And yet, we still select for the taller of the population at every step of the way, right translating the distribution over time. I think "daredevilness" is similarly selected for. Although, I think it's a bit more complicated, because there's a difference between being a bold James Bond like person and having a suicide wish.
 
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Woman are attracted to men who are equal to or above them in the social hierarchy - whatever that may be. In humans, this has evolved as a method of sexual selection, which is equally as important as natural selection.

An article about this with some real data:
https://www.psychologytoday.com/us/blog/the-evolving-father/201311/non-dads-or-childless-men

In Australia, 90% of women aged 45-59 have given birth to at least one child, while 87% of men have fathered a child. Given that the population is basically 50/50, this can only be true if there are some men fathering lots of children, with some men fathering none.

Those who father none are the guys who can't get women. When have you ever heard of a woman who can't get a man?

A women can almost always pass on her genes if she wishes to, but their are many men who are hopelessly unable to pass on theirs. Therefore, competition among men for status, in combination with choosy women, is what drives selection for good genes.
 
  • #12
dipole said:
Woman are attracted to men who are equal to or above them in the social hierarchy

All else being equal I assume.

Surely a tall and handsome man can offset this so long as he is much better looking than the woman in question. In that case, the woman may go for the man even if he is below her in the social hierarchy. I wonder if any of the studies have accounted for this.
 
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dipole said:
In Australia, 90% of women aged 45-59 have given birth to at least one child, while 87% of men have fathered a child. Given that the population is basically 50/50, this can only be true if there are some men fathering lots of children, with some men fathering none.

Those who father none are the guys who can't get women. When have you ever heard of a woman who can't get a man?

@dipole, without clarifying things further, the statements you state above are frankly dubious, to say the least.

There are several factors involved about men who do not father children, besides "not getting women". For example:

1. Homosexuality -- by definition, gay men are less likely to father children (at least until recently -- nowadays, with surrogate parenting and adoptions this has changed).

2. Infertility

3. Celibacy -- Catholic priests are celibate (or are supposed to be celibate), and thus by definition do not father children.

4. Choice -- it is not unusual for men in relationships with women to choose not to father children (ostensibly this would be a mutual decision).

Even the Psychology Today article that you quote above (a magazine which is of variable quality in terms of publishing articles related to psychology, IMHO) makes these caveats, which you apparently do not.

Also, I hate to remind you this, but there are women out there who "can't get a man" either
 
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