Population Shift and Size - Introduction section with citations

Population Shift and Size - Introduction section with citations

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Introduction: The members and gene pool of a population is variable depending on the habitat that the population is located at and the predators there. Natural selection breeds for members of the population who can more easily escape predators and survive to the next breeding season. Thus, the members that survive will be able to pass on their genes and the specific traits that allow those members to survive will be multiplied through their offspring. The members that do not have the traits that will allow greater survival will be eliminated from the gene pool much quicker and as a result, there will be a smaller percentage of the resultant population with those traits (Reimchen, Nosil 2002). Population sizes also vary, usually in a cyclical format. There are many possible theories which account for these cyclical fluctuations with the size of the population, some of which are quantity and quality of foodstuff, predator population size, and population interaction. In studies that focus on the relationship between the population
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This note was uploaded on 11/23/2009 for the course BIO 1B taught by Professor Carlson,mischel,power during the Fall '07 term at Berkeley.

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