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Cells, Organisms, & System > L7 Mate Choice and Sociality in Evolutionary Biology > Flashcards

L7 Mate Choice and Sociality in Evolutionary Biology Flashcards

1
Q

Sexual Selection

A

Darwin’s theory explaining mate competition traits.

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2
Q

Assortative Mating

A

Preference for similar phenotypes in partners.

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3
Q

Sociality

A

Living in groups for breeding and survival.

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4
Q

Altruism

A

Selfless behavior benefiting others’ reproductive success.

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5
Q

Eusociality

A

Cooperative breeding with non-reproductive helpers.

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6
Q

Sex Differences

A

Variations in traits and behaviors between sexes.

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7
Q

Gamete Size

A

Females produce larger, energy-rich gametes.

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8
Q

Parental Care

A

Investment in offspring survival and development.

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9
Q

Lifetime Reproductive Success

A

Total offspring produced by an individual.

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10
Q

Alpha Male

A

Dominant male with highest reproductive success.

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11
Q

Differential Variance

A

Unequal reproductive success among individuals.

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12
Q

Intersexual Choice

A

Female selection based on male traits.

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13
Q

Intrasexual Competition

A

Male competition for access to females.

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14
Q

Aesthetic Preferences

A

Female attraction to visually appealing traits.

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15
Q

Good Genes Hypothesis

A

Females choose mates with superior genetic quality.

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16
Q

Peacock Eyespot

A

Indicator of male quality and offspring survival.

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17
Q

House Finch Preference

A

Females prefer redder males for better parenting.

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18
Q

Sexual Selection Mechanisms

A

Processes driving mate choice and competition.

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19
Q

California Elephant Seal

A

Males compete for territory and females.

20
Q

Vogelkop Bowerbird

A

Male displays attract females for mating.

21
Q

Eastern Bluebird

A

Example of mate selection based on traits.

22
Q

Cedar Waxwing

A

Species illustrating aesthetic female preferences.

23
Q

Sexual Selection Consequences

A

Leads to secondary sexual characteristics.

24
Q

Natural Selection

A

Process favoring traits enhancing survival and reproduction.

25
Q

Stalk-eyed fly

A

A species illustrating sexual selection dynamics.

26
Q

Honest signalling

A

Signals indicating true quality of individuals.

27
Q

Handicap Principle

A

Costly traits signal fitness to potential mates.

28
Q

Assortative mating

A

Mating preference based on similar traits.

29
Q

Optimal outbreeding

A

Mating strategy to enhance genetic diversity.

30
Q

Major histocompatibility complex (MHC)

A

Genes crucial for immune response and mate choice.

31
Q

Sweaty T-shirt experiment

A

Study showing MHC preferences in human odor.

32
Q

Parental care

A

Investment by parents in offspring survival.

33
Q

Parent-offspring conflict

A

Disagreement over resource allocation between generations.

34
Q

Siblicide

A

Nestlings killing siblings for survival advantages.

35
Q

Cooperative breeding

A

Non-breeding individuals assist in raising young.

36
Q

Meerkat sentinel

A

Non-breeder watching for predators during foraging.

37
Q

Meerkat helpers

A

Assist in raising pups, enhancing survival rates.

38
Q

Infanticide in meerkats

A

Pregnant females kill others’ young for survival.

39
Q

Dominant females in meerkats

A

Account for most surviving offspring in groups.

40
Q

Courtship behavior

A

Elaborate rituals to attract mates.

41
Q

Genetic compatibility

A

Mating preference to maintain healthy gene pool.

42
Q

Olfactory cues in mate choice

A

Chemical signals influencing mating preferences.

43
Q

Black eagle siblicide

A

Nestlings kill siblings to reduce competition.

44
Q

Kookaburra siblicide

A

Intra-brood killing for resource allocation.

45
Q

Florida scrub jay

A

Example of cooperative breeding in birds.

46
Q

Colony structure in naked mole rats

A

Single queen with non-breeding colony members.

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