Online Appendix IV. Taxa with significant indicator values (Dufrêne & Legendre 1997) after FDR error correction (Benjamini & Hochberg 1995). Taxa with significant indicator values are marked with an asterisk. A line (—) in the genus or species column indicates that higher taxa had significant IVs, but none of the lower taxa did. Where significant IVs were found for multiple taxonomic levels, the P values shown are for the lowest taxon.