Summary of meta database used in analyses.

Database includes studies conducted between 1992 and early 2006.
aFor the 8 studies conducted multiple years, comparisons were made for each year.
b1 = vacuum, 2 = plant count, 3 = sweep net, 4 = beat cloth, 5 = pitfall trap, 6 = litter, 7 = pan trap, 8 = soil, 9 = sticky trap
cBased on the finest level of taxonomic resolution provided by study authors; some duplication of taxa may occur if only Family or Order level resolution was provided.