I agree with you that there is a difference in variability between generations.
I agree with you that the variability has been reduced in the second generation.
It seems that we both disagree with the original paper, then, as it states
"If sex A is relatively selective and will mate only with the top most desirable quarter of sex B, then all of the next generation will be offspring of the more variable subpopulation B1"
I agree with you that the variability has been reduced in the second generation.
It seems that we both disagree with the original paper, then, as it states
"If sex A is relatively selective and will mate only with the top most desirable quarter of sex B, then all of the next generation will be offspring of the more variable subpopulation B1"