Sept_8 - Results of guppies high predation environment =...

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Results of guppies high predation environment = smaller size, while low predation = larger age of maturity evolved up 3% per generation and size evolved 1% per generation Quantifying selection: Fitness how many copies of your genes u leave to the next generation # of descendant zygotes produced by an individual, phenotype or genotype aboslute fitness W = the number of progeny produced = probability of survival x fecundity mean fitness average fitness, W with bar over it relative fitness w = W/W bar strength of sleecction devpends on relative fitness How fast evoluti by nat. selection spread of advantages mutation delta p = p(1-p)s p = frequency of a allele delta = change in a single generation s = increase in allel freqency p(1-p) = measure of genetic variation s = measure of selection rate of evolution is euqal to the genetic variance x strength in selection Gene favor spread by 10% - 90% number of generation = 4/s
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Sept_8 - Results of guppies high predation environment =...

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