BIOL 2050 Chapter Notes - Chapter 7: Asexual Reproduction, Sexual Maturity, Sea Anemone
29 Mar 2016
School
Department
Course
Professor
Document Summary
Characteristic includes: age and size of sexual maturity, amount and timing of reproduction, survival and mortality rates. Big bang reproduction reaches sexual maturity at one year, mates intensely over. 3 week period, males die shortly after mating period. Fast, intense reproductive investment reaches sexual maturity at 1 month, produces litters of 6-10 offspring every month. Slow, gradual reproductive investment reaches sexual maturity at 1 year, produces one offspring per year. Diversity of life history life history strategy = overall patern in average timing and nature of history events: shaped on the way organism divides its time between growth, reproduction and survival. Natural selection favours individuals whose life history traits result in having better chance of surviving and reproducing. Phenotypic plasticity one genotype may produce different phenotypes under different environmental conditions. Growth and development may be faster in higher temperatures. May result in continuous range of sizes or discrete types called morphs.
