Post-hoc pairwise tests of diet composition between pairs of sites that are of the opposite type (clam bed site v. natural slough site); tests were conducted using (a) a prey presence/absence, and (b) the eDNA index.

Superscript indicates significance at the α = 0.10 (.), 0.05 (*), and 0.01 (**) levels. The Bonferroni correction (for six total pairwise tests for each data set) was applied to obtain the “corrected p-value.” Results from pairwise tests between sites of the same type are reported in S6 Table.