Effects Of Male Competition On Mating Behavior

2242 WordsNov 12, 20169 Pages
Vassar College The Effects of Male Competition on Mating Behavior in Burkina Faso and Southern India Populations of Callosobruchus maculatus Rachel Chernet Biology 106-01 Professor Czesak Thursday, November 10, 2016 Introduction Sexual conflict, the conflict between the evolutionary interests of individuals of the two sexes, is recognized as a pertinent factor for adaptation. Traits of one sex that reduce the fitness of the other sex ultimately inflicts antagonistic selection on that sex to evolve to counteract this cost. For example, sexual conflicts can arise over traits like mating duration, where the two sexes adapt and counter-adapt in order for each sex to achieve its ideal fitness levels. However, the fact that adaptations have effects on other fitness components suggests that the detection of sexual conflicts on individual traits can be complicated. The bean beetle Callosobruchus maculatus is a prime example of sexual conflict and is widely considered a model organism to scientists for its ability to represent how mating behavior influences biological processes such as reproduction. The model organism dedicates its short life span to mating and laying eggs on beans, thereby enabling scientists to use the beetles for experimentation. Two of C. maculatus’ populations are Burkina Faso (BF), originating from Africa, and Southern India (SI), originating from Asia. The geographic differences these populations encounter ultimately impact their reproduction
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