Greater Prairie Chickens,large Birds Related to Grouse,once Maintained Population Sizes

question 19

Essay

Greater prairie chickens,large birds related to grouse,once maintained population sizes of hundreds of thousands on the North American Great Plains.As more and more of the native grassland was converted to farms,the number of greater prairie chickens declined,and the species nearly went extinct due to loss of habitat.Assume that a locus segregating for two alleles,A and a,each with a frequency of 0.5,existed in greater prairie chickens before the reduction of habitat.Further,assume that this species was fragmented into genetically isolated populations,containing very limited numbers of individuals.What effect on allele frequencies would one expect to find in the greater prairie chicken populations after the losses and fragmentation of habitat?

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