Evolution of Social Behavior Flashcards Preview

Anthropology (ANT 301) > Evolution of Social Behavior > Flashcards

Flashcards in Evolution of Social Behavior Deck (16)
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1
Q

costs/benefits to group living

A

one cost is inbreeding

2
Q

dispersal (3)

A

emigration from a social group
causes gene flow
decreases inbreeding

3
Q

sex biased dispersal

A

males stay in natal groups

4
Q

behavior influences…

A

distribution of allele frequencies in a population over time

5
Q

What behaviors have genetic consequences? (2)

A

mating and offspring care

6
Q

selection should favor ….

A

individuals who ON AVERAGE make choices that improve their fitness

7
Q

reductionism

A

reference to the fitness of behavioral traits (or the genetics of behavior) - means it has genetic consequences in terms of the number of offspring it allow the individual to produce

8
Q

behavioral strategies

A

are flexible, esp. for long lived animals who need to cope with varying environments

9
Q

hormones

A

influence your physical body and your behavior

10
Q

phenotype

A

the observed characteristics, reflecting the effects of the environment on genotypic expression

11
Q

phenotypic plasticity

A

the capacity of a single gene to produce multiple phenotypes in response to the environment

12
Q

reaction norm

A

the range of phenotypes that will be developed by a genotype over a range of environments

13
Q

types of reaction norms (2)

A

irreversible developmental plasticity

reversible plasticity

14
Q

plasticity - types of males

A

change rank (social environment) - change phenotype even though he has the same genes

15
Q

sex as a reaction norm

A

continuum of effects of genes and environment on the phenotype resulting in a scale of characteristics

16
Q

DNA methylation

A

turns off genes