Figure 1: Plot-level measurements of change in aboveground biomass according to parasite infection and snail density treatments. Dashed line at zero indicates no change in aboveground biomass, positive values indicate an increase in biomass during the study, and negative values indicate a loss in biomass. Lines depict modeled relationships, and associated shading represent 95% confidence intervals. The multiple R2 for this relationship was 0.83, with an associated correlation coefficient of 0.912.