Fig 3. Egg-lay responses of the four Drosophila species in response to dead yeast.

The average egg lay response over the first 10 reproductive days of D. mel. treated with diets including no yeast, minimum dead yeast (1 scoop/fly/day), and minimum alive yeast (1 scoop/fly/day) are shown. p< 0.001: ‘***’ p<0.01: ‘**’.