Lecture 12: Sex Allocation (EEB 122)
This lecture discusses sex allocation, an organism's reproductive investment distribution between male and female functions, examining optimal ratios under varying conditions. It covers sex determination in hermaphroditic and dioecious species based on environmental cues.
Principles of Evolution, Ecology and Behavior (EEB 122)
Sex allocation is an organism's decision on how much of its reproductive investment should be distributed to male and female functions and/or offspring. Under most conditions, the optimal ratio is , but that can change under certain circumstances. Sex allocation determines what sexes sequential hermaphrodites should be at each part of their life as well as how simultaneous hermaphrodites should behave. Some species have more control over the sexes of their offspring than others, and adjust the sex ratios of their offspring depending on the environment and conditions.
Lecture 11: Life History Evolution (EEB 122)
Next · Lecture 13Lecture 13: Sexual Selection (EEB 122)