Chapter 7 Flashcards

1
Q

Mating system

A

The ways in which animal societies are structure in relation to sexual behavior

Polities religions and culture

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2
Q

The Mating systems

A

Polyandry- one female, many males

Monogamy- one man one woman

Polygyandry- open marriage

Polygyny- one male, many females

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3
Q

Advantage and disadvantage of polygamy

A

Advantage: Increases the variance and reproductive success in the sex that has more than one mate per season

Disadvantage: reproductive success is not equally distributed within male species and between both species

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4
Q

Effects of polygany on females

A

Females have low productivity and shirt lived

Mate shortly after becoming an adult

Females group closely

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5
Q

Cooperative polyandry

A

All males defend their territory

Mate equally

Feed and incubate offspring

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6
Q

Resource defense polyandry

A

Females defend super territories of smaller territories

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7
Q

Benefits of poly android mating

A

Sperm replenishment- sperm supply

Material benefits-nutrients, protection

Genetic benefits-no inferior sperm

Convenience

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8
Q

What determines the form of polygamy

A

Incentive

Parental care costs

Opportunity

Sex ratio

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9
Q

Polygyny threshold model

A

Model developed to predict whether a mating system will be monogamous or polygamous

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10
Q

Social pair bonding

A

The pair bond with one partner but meet with multiple partners during breeding season

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11
Q

Sperm competition factors

A

Body size vs testes size

Time of copulation

Sperm velocity

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