Based on the scenario above it seems logical to hypothesize that the population structure and breeding pattern in these species could lead to a reduction in genetic variability of the populations. Therefore, you propose that genetic variability within populations will be low but that there will be some genetic differences among populations due to reduced gene flow and perhaps fixation of certain alleles due to genetic drift and other factors. The data presented by the authors shows high genetic variance within populations and relatively little variation among populations. Now you have to come up with another hypothesis, one which will explain how high genetic variance is maintained. As Jack points out, MHC genes play a central role in immune recognition, but they have also been shown to influence individual odors and reproductive traits such as mating preferences and spontaneous abortion.
MHC genes are also the most polymorphic loci known for vertebrates.
You now have at least two ways to explain how genetic variability is maintained in the populations of the lekking species you've chosen for study. Question 1 . Propose, in a paragraph, how genetic variability could be maintained based on an alternate view of how the mating system works and show how you would test your hypothesis in the field. In other words, ask yourself how geneflow might be maximized and how you would establish the amount of gene flow in a natural population of this species. Question 2 .