behavior

behavior

any and all actions performed by an organism, has a genetic component, DNA makes more than proteins, evolution can affect/shape

proximate vs. ultimate causes of behavior

usually involves phsyiology (short term cell biology) vs. evolution (increase fitness large scale)

Innate

behavior that is performed correctly the first time it is ever tried, criticial for survival, ex: fixed action pattern like egg retrieval in gease

learned

modifying behavior through experience, shown→practice→ mastered

sexual selection

anisogamy: different size gametes, finding a partner enivornment

sexual conflict

females- 1 partner do just fine, males: more partners better for reproductive success

mate choice

courtship rituals, control of valuable resources, gifts up front, good looks(good genes)

mating systems: monogamy

1 partner for life

mating systems: pair bond

1 partner for 1 breeding season

mating system: polygamy

multiple partners

sexual dimorphism

sexes differ in size or appearence, one parent invest more in caring for offspring

sexual monomorphism

the sexes are indistinguishable, both parents invest equally in caring for offspring

protandry

male to female, clownfish

protogyny

female to male, common, apple, pears