Estimating Population Size Gizmo Answers
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Population genetics is the study of the genetic structure of populations, the frequencies of alleles andgenotypes. A population is a local group of organisms of the same species that normally interbreed. All of thealleles shared by all of the individuals in a population make up the population's gene pool. The mostfundamental task in population ecology is to determine or estimate population size.One way to estimate the size of a population is the Sampling Technique. Another method to estimatethe size of a population is to capture and mark individuals from the population, release them, and thenresample to see what fraction of the individuals carry marks. Various techniques with accompanying equationsare then used to approximate population size.The size of a population is determined by many factors. In the Rabbit Population by Season Gizmo, youwill see how different factors influence how a rabbit population grows and changes.
A technique called sampling is sometimes used to estimate population size. In this procedure, the organisms ina few small areas are counted and projected to the entire area. For instance, if a biologist counts 10 squirrelsliving in a 200 square foot area, she could predict that there are 100 squirrels living in a 2000 square foot area. 153554b96e
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