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24 terms
Terms | Definitions |
|---|---|
 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 |
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