Figure 8:  Plots of measured vs. inferred distance for (A) plant, (B) diatom and (C) mollusk assemblages. Distance was inferred from assemblages using a weighted-averaging (WA) regression model with tolerance downweighting for plants and diatoms and without downweighting for mollusks. Residuals from each WA calibration model are plotted against distance for (D) plant, (E) diatom and (F) mollusk assemblages.