Parental investment

Created by: Gemma
Created on: 12-04-14 11:32

What does PI state?

The sex who has to invest the most, will be the most choosy + discriminating

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Women + PI

women have greater prenatal +postnatal care(premature),obligatory biological role which means resources can't be wasted, would be a waste of time. Employ LTMS because random mating is too costly(link with **). Females=limited no.of offspring- choosy

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Men +PI

men invest far less: unlimited amount of sperm + dont have certainty child is theirs + so invest less to protect themself against cuckoldry

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Miller

Men are more concerned about sexual infidelity of partner. (purpose - avoid problem of cuckoldry + females = concerned about shift in emosh focus - loss of resource for her + child

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Dunbar

where a man can invest would pay him to do so to promote the survival of their offspring - joint parental care=:)

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Rowe

PI based on evolutionary theory =severly limited. Other factors influence mens parental behaviour e.g. relationship with mother , characteristic of child

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Daly + Wilson

Although cuckolding a partner can be a positive for her +child - getting extra resources, it can also lead to dangers e.g. violent abuse

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Bellis + Baker

27,000 women in the UK 14% products of extramarital affair - suggests women settle down with someone who has resources + 'shops' elsewhere for good genes

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Anderson

Step father - not discriminant between own children + step-children

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Eagly + Wood

society defines roles based on perception of men being dominant. ST mating strategies employed because society allows it (SOCIAL ROLE THEORY)

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Ellis + Symons

Sexual fantasies of men + women. Men = multiple partners (strangers) , on + Off ==> STMS Women = one partner, who had known for a long time ==> LTMS

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Reid

human males do contribute - investment they make reduces child mortality

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Other cards in this set

Card 2

Front

Women + PI

Back

Card 3

Front

Men +PI

Back

Card 4

Front

Miller

Back

Card 5

Front

Dunbar

Back

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Parental investment