ANT211H5 Lecture Notes - Lecture 3: Secondary Sex Characteristic, Ronald Fisher, Mate Choice
Document Summary
Ant211 | lecture 3 male and female sexual selection. These two forms of selection mean that some individuals have better reproductive success than others within a population, either because they are more attractive or prefer more attractive partners to produce offspring. Sexual selection can, typically, lead males to extreme efforts to demonstrate their fitness to be chosen by females, producing sexual dimorphism in secondary sexual characteristics. Advantage that certain individuals have over other individuals of the same sex solely in respect to reproduction. Intrasexual competition occurs when members of the same sex (within a species) compete with each other in order to gain opportunities to mate with others. How males and females compete for mates. Because this often involves fighting (especially with male organisms), species or individuals well adapted for intrasexual selection will have developed better armaments (weapons) than their competition.
