Evolutionary explanations for partner preferences Flashcards

(45 cards)

1
Q

What does Darwin’s evolutionary theory state?

A

Partner preference is driven by sexual selection which means males and females choose their partners to maximise reproductive success

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2
Q

What is partner preference driven by?

A

Sexual Selection

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3
Q

What is sexual selection

A

Males and Female choose their partners to maximise reproductive success

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4
Q

Define anisogamy

A

The differences in male and female sex cells

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5
Q

Males and females are said to have different partner preferences and human reproductive behavior due to …

A

Anisogamy

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6
Q

Male gametes are…

A

Created in vast numbers, small, mobile and don’t require a lot of energy to produce and are continuously created

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7
Q

Female gametes are…

A

Relatively large, produced once a month for a limited number of fertile years and require a significant amount of energy

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8
Q

Define inter sexual selection

A

Between the sexes- strategies that males use to select females OR females use to select males

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9
Q

What is INTER sexual

A

Between the sexes

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10
Q

Define intra Sexual Selection

A

Within each sex- such as strategies between males to be the one selected by the female

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11
Q

What is INTRA sexual

A

Within each sex

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12
Q

What can males not be sure of?

A

Paternity

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13
Q

How long do males remain fertile for?

A

Throughout their lives

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14
Q

How much do males invest biologically compared to females?

A

Males invest less biologically compared to females

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15
Q

What kind of mating strategies do males prefer?

A

Short term mating strategies with multiple females

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16
Q

Males are more likely to be…

A

Promiscuous

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17
Q

What kind of females do males seek?

A

Young, attractive, fertile females

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18
Q

Why do males seek high quality females?

A

To ensure offspring has greater survival chances

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19
Q

Who are males in competition with and why?

A

Males are in competition with other males to access high quality females

20
Q

What may males show towards other males

A

Physical aggression

21
Q

How much do females invest biologically compared to males?

A

Females invest more biologically than males

22
Q

How long are females’ fertile for?

A

An average of 30 years

23
Q

What can females be sure of?

24
Q

Females are more likely to engage in?

A

Long-term mating

25
Females are more .............. when looking for a mate
Choosy
26
Why are females more choosy when looking for a mate?
To ensure offspring has greater survival chances
27
What type of male do females seek?
A strong, dominant male who provides resources
28
Who are females in competition with and why?
Other females to access a high quality males
29
Who conducted RTS the evolutionary theory for partner preferences and the relationship between sexual selection and human reproductive behaviour?
Buss
30
What method did Buss carry out?
A survey
31
How many participants from how many countries were involved in Buss' research?
10,000 participants from 33 different countries
32
What questions were ppts from Buss' research asked?
Ones relating to a variety of attributes that evolutionary theory predicts are important in partner preferences
33
What did Buss find that males prefer?
Youthful, physically attractive females
34
What did Buss find females preferred?
Resources such as good finances and ambitious males
35
What does Buss' research show?
Universal sex differences in sexual selection supporting predictions of partner preferences made by the evolutionary explanation
36
Name another RTS
Clarke and Hatfield
37
What was the procedure of Clarke and Hatfield's research?
They had males and females approach members of the opposite sex and ask "Will you have sex with me?"
38
What was Clarke and Hatfield's findings?
75% of males said yes to the female 0% of females said yes to the male
39
What does Clarke and Hatfield's research demonstrate about femlaes?
They are more choosy when selecting sexual partners
40
What does Clarke and Hatfield's research demonstrate about males?
They have evolved a different strategy to ensure reproductive success
41
What does this increase?
The validity
42
What does the evolutionary theory of partner preferences lack?
Temporal validity
43
Why does it lack temporal validity?
It cannot explain modern relationships
44
Name three types of relationships it cannot explain
Homosexuality Individuals who don't want to have children Women who choose to have abortions
45
What does the evolutionary theory assume?
All relationships are motivated by the desire to reproduce