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24 terms

midterm 2-more

STUDY
PLAY
triver's parental investment hypothesis
sex that invests more effort& more resources in offspring is the limiting resource for the reproduction of the less investing sex-object of competition
parallel testing
more than 1 observer collects data at same time
ethnogram
inventory of behaviors of a species with the behaviors organized into categories
focal animal sampling
occurrences of actions of 1 individual are recorded during a predetermined sample period
optimal forager
one that forages in way that maximizes its net energy gain
innovation
newly invented behaviors
ratchet effect hypothesis
cumulative cultural change, beneficial modifications to existing habits can accumulate over time
mimicry
copy motor patterns without adopting or understanding goal/intention
emulation
adopt goal/intention without copying precise motor pattern
true imitation
adopt goal/intention and copy precise motor pattern
life history approach
model of how individuals allocate resources (energy&effort) over lifetimes to maximize reproductive success
adrenarche
hormones from adrenal glands that helps shape the brain
senescence
deterioration of body function as we grow older
antagonistic pleiotropy
genes that are beneficial early in life can have adverse affect later in life
grandmother hypothesis
menopause evolved to switch women from investing in offspring production to investing in their grandchildren
reproductive ecology
study of reproductive functioning as an interaction b/w an organism and it's environment
fecundity
capacity to bear offspring
fecundability
monthly probability of conception
fertility
successful reproduction b/c you had children
exocrine glands
secrete substances into ducts that empty into body cavities or onto surfaces
endocrine glands
secrete products called hormones that enter bloodstream then are carried to other regions of the body to exert their effects
adolescent subfecundity
55-85% menstrual cycles during first 2 years are anovulatory
energy balance
net difference b/w energy intake and energy expenditure
auxology
science of human growth and development