Essay On Sexual Selection
Sexual selection is a theory within natural selection in which the behaviors or characteristics selected for increase the chances of successful reproducing offspring’s with highly favored traits in the population. Sexual selection is one of the most powerful evolutionary forces and there are two key mechanisms for sexual selection: intrasexual selection and intersexual selection. Male-male competition is the most common form of intrasexual selection in most polygynous driven systems where heterogenous males compete over a female mate by displaying traits/ characteristic that are favorable. Male-male competition does not occur only through direct confrontations. For example, male individuals can court a female by showing their ability to evade …show more content…
This act occurs mainly through female selection of which mate’s sperm in the female species will be successful in fertilizing the female’s eggs. In addition, another form of intersexual selection is male mate choice. Male mate choice is a form of intersexual selection that decides in how a male will distribute his courtship. All males species regardless of what favorable trait the carry are regarded to have equal amounts of energy that they can devote into courting a female individual through acts like protecting from predators, foraging and more. Male mate choice assumes strict polygyny relationship. in populations that display male mate choice, males tend to lessen their chance of sexual competition by withholding their preference for a certain female when faced with fellow male competitors. Sexual selection was a proposed concept by Charles Darwin in his book The Descent of Man. He attempted to understand certain classes of traits that defied natural selection. Darwin described the traits he observed and saw them as sexual differences which were favored and selected for through competition for mates. Darwin determined that sexual selection had to play a pivotal role in the evolution of the species traits as well as their ability to successfully reproduce the fittest
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