Fig. 3.
Delta prevalence () values, corresponding to the difference in prevalence from spring to summer, plotted against delta temperature () values, for trematode infections of first intermediate hosts (First IH; N = 278), second intermediate hosts (Second IH; N = 147), and definitive hosts (Final H; N = 84) in temperate freshwater ecosystems. Trend lines are shown for illustrative purposes; only the relationship for first intermediate hosts is significant