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There are many different ways to do this, depending on what assumptions you make on e.g. stable age structure, distribution of offspring, haploidy/diploidy, population growth etc. As you probably know, there are also two main approaches to effective population sizes, namely ones based on; 1) the rate of inbreeding ($N_{e,i}$) and 2) the increase in variance ...


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From Conner and Hartl's A primer of ecological genetics: "Any variance in reproductive success among individuals greater than random expectations, a commonplace concurrence in natural populations, reduces effective population size." So yes, selection does reduce the effective population size and for the reason you suggest - it removes some ...


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Hansen (2006) says (middle of page 19): A link between genetic and environmental robustness is plausible, because genetic en environmental disturbances ay often affect the same functional pathways in the organism, and any increase int he robustness has been fund in studies of RNA folding (Ancel & Fontana 2000), in the effects of heat-shock proteins ...



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