Social Dominance and Courtship Displays

Post your response to the following: How do various behaviors of social dominance and courtship display affect the evolutionary process? What other behaviors might have an impact on evolution? Be sure to provide specific examples.

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In many species, the socially dominant males have a higher rate of copulation than the lower males. Therefore socially dominant males have a greater chance of reproducing and consequently passing on their genetic material to the next generation. In that case, social dominance would, at least to some extent, determine the evolutionary track of a species. Also, courtship displays can be a source of new species development. For instance, a subgroup of the species might acquire different courtship displays and thereby isolate themselves, genetically, from the rest of the species.

The amount of social interaction between the sexes in a given species would have a substantial impact on a species. If the males and females live relatively isolated lives from each other, then copulation is less likely and less frequent. However, if the males and females live in close proximity to each other on a daily basis I would think that copulation would be much more likely and frequent. Also, I have heard of some species where the female kills the male after fertilization. That would certainly deter the evolution of the human race if that were the case, huh?

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Pinel, J.J. (2007). Basics of biopsychology. Boston, MA: Allyn & Bacon.


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