Variables r2 p-value Sand % -0.04092 0.71679 Clay % 0.158621 0.157254 Silt % -0.02006 0.858951 Organic matter -0.21705 0.051609 Salinity 0.082157 0.465906 pH -0.15815 0.1585 Phragmites spp. -0.34863 0.001425 Distance -0.10796 0.337404 Transect 0.012128 0.914426 Elevation -0.22294 0.045443

Table 3: Correlation coefficients and p-values of cluster order from unconstrained cluster analysis based upon untransformed unweighted Euclidean distance and the measured environmental variables for the combined Oglet Bay and Decoy Marsh dead foraminifera dataset. R2 values >0.5 and P-values <0.05 are in bold.