RLG202H5 Lecture 6: ant lecture 6life history strategy.doc
Document Summary
Sex roles & parental care: life history strategies. Bruce effect: in the environment of novel males females who were pregnant had spontaneous abortion and went back to reproducing with males, female mic aborted so that they could mate again with the new mice. Most researchers believed that the bruce effect is an abnormal social behaviour as a consequence of these controlled captive conditions. Males are larger than females in lions therefore females are not able to protect their infants from abusive or violent males. How an organism allocates its efforts over its lifetime in order to maximize fitness. For test: focus on last section of article (last ten pages of articles) Semelparity: expending one"s resources & dying in a single reproductive effort, common among plants (e. g. annuals) Iteroparity: repeated reproduction, return to pre-reproductive state. Protect how much energy you use to copulate and for surviival. Budget energy between reproductive effort & somatic effort (divided into growth & maintenance)
