Don't know that I suggested that the yeast eats the competitor yeasts but don't the dead yeast cells autolyze (break down) and when they break down don't the active yeast make use of the chemicals (minerals and nutrients) that now become part of the active yeast's environment? I guess I am saying that yeast do cannibalize dead yeast - Whoa - shades of Soylent Green
Mea culpa. I took "will act as nutrient for" to mean, well, to mean that EC1118 would eat the dead yeast. I am ignorant of the extent to which live yeast utilize the breakdown products of autolyzed yeast -- time for some reading, I guess!