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Flashcards in class 20 notes Deck (20):
1

mating system

type of relationships that occur between M and F in sexually reproducing pseicies, number of mates each typically sex has within specific period of time

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monogamous

consistent pair bond including sexual exclusivity formed between two individuals

3

polygamy

general term used to describe system which individual mates with two or more partnrs of opposite sex

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polygynous

one male mates with two or more females

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polyandrous

one female mates with two or more males

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polygynandry

mating system define by sexual sharing among two or more females and two or more males
pair bonds form among speific individuals

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promiscuity

no pair bonds formed

8

mating systems develop to optimize what

reproductive output of each individual, mating systems are adaptaions- that favor reproductive output of each individual

9

monogamy

enhances fitness of individuals invovled
pop widely dispersed
offspring dependent upon biparental care or if female can require male to provide such care

10

female enforced monogamy

F eliminates risk of other competing females from copulating with her chosen mate

11

polygyny

most commonly observed mating system in animals, extent to which males can monopolize females
territory of male contains useful resources for female and her offspring- enviornmental conditions play significant role in promoting this mating system

12

harem

mates with all females who nest in territory

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polyandry

females should be choosier sex bc they invest more energy into generating eggs while males favor quantity over quality

14

material benefits hypothesis

direct model of female choice, predicts females who mate with more than one male are privelidged to access more resources and parental care and a limitless sperm supply

15

genetic benefits hypothesis

indirect model of female choice, broadly predicts females who are mated with multiple males will produce genetially diverse offspring who are the results of superior ejaculates that the f can choose among

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polygynandrous females

regulary form pair bonds and copulate with several males at the same time as these males similarly form pair bodns and copulate with several F

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resource dispersion hypothesis

polygynadrous system may arise because there is limited optimal resources may force more than one breeding pair within a territory

18

promiscuity

where pair bonds dont form and m/f are likely to copulatite with more than one idnviidual of opposite sex

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cryptic female choice

intersexual selecito that occurs post insemination

20

exra pair copulations

any strategy increaseing total number of offspring produced by individual

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