BIOL 122 Lecture Notes - Lecture 11: Santa Barbara City College, Fecundity, Parental Investment
Document Summary
The schedule of an organism"s growth, development, reproduction, and survival. The # of offspring produced per organism per reproductive episode. The # of reproductive episodes on organism experiences. The amount of time and energy given to an offspring by its parents. Life history traits range widely in nature. Often organized into a life history strategy. Allows organisms to persist under different ecological strategies. Life history strategies demonstrate the art of compromise. Increase in reproductive success leads to an increase in fitness which leads to increases in population proportion with your genome = winning at natural selection. Never the case in nature because limited resources. Seed size is larger for trees compared to grasses. Life history traits often vary consistently with respect to life form. Variation in one life history trait is often correlated with variation in other life. The # of offspring produced is negatively correlated with the size of the history traits offspring.
