Supplement 1. Information on the studies in the metadata sets and the Visual Basic code associated with the rarefactions.

File List Data1.txt (md5: 75870e6a40e77feb7c08da2152ca9936) Data2.txt (md5: f6b11f8a3b572478e9af14a1ab0d7de0) Rarefaction.txt (md5: 6ffb56c200668347652aaaa440526b13) Description Data1.txt is a tab-delimited ASCII file. The file contains references, taxa, crops, countries, taxonomic groups, id levels, and abundance, richness, and evenness values for each study in the metadata set comparing organic and conventional farming. Column definitions follow: 1 = REFERENCE 2 = TAXA 3 = CROP(S) 4 = COUNTRY 5 = TAXONOMIC GROUP 6 = ID LEVEL 7 = ABUNDANCE IN CONVENTIONAL 8 = ABUNDANCE IN ORGANIC 9 = ABUNDANCE EFFECT SIZE 10 = RICHNESS OBSERVED IN CONVENTIONAL 11 = RICHNESS OBSERVED IN ORGANIC 12 = OBSERVED RICHNESS EFFECT SIZE 13 = EVENNESS OBSERVED IN CONVENTIONAL 14 = EVENNESS OBSERVED IN ORGANIC 15 = OBSERVED EVENNESS EFFECT SIZE 16 = RICHNESS RAREFIED IN CONVENTIONAL 17 = RICHNESS RAREFIED IN ORGANIC 18 = RAREFIED RICHNESS EFFECT SIZE 19 = EVENNESS RAREFIED IN CONVENTIONAL 20 = EVENNESS RAREFIED IN ORGANIC 21 = RAREFIED EVENNESS EFFECT SIZE Data2.txt is a tab-delimited ASCII file. The file contains references, taxa, crops, countries, taxonomic groups, id levels, and abundance, richness, and evenness values for each study in the metadata set comparing burned and unburned ecosystems. Column definitions follow: 1 = REFERENCE 2 = TAXA 3 = COUNTRY 4 = TAXONOMIC GROUP 5 = ID LEVEL 6 = ABUNDANCE IN CONVENTIONAL 7 = ABUNDANCE IN ORGANIC 8 = ABUNDANCE EFFECT SIZE 9 = RICHNESS OBSERVED IN CONVENTIONAL 10 = RICHNESS OBSERVED IN ORGANIC 11 = OBSERVED RICHNESS EFFECT SIZE 12 = EVENNESS OBSERVED IN CONVENTIONAL 13 = EVENNESS OBSERVED IN ORGANIC 14 = OBSERVED EVENNESS EFFECT SIZE 15 = RICHNESS RAREFIED IN CONVENTIONAL 16 = RICHNESS RAREFIED IN ORGANIC 17 = RAREFIED RICHNESS EFFECT SIZE 18 = EVENNESS RAREFIED IN CONVENTIONAL 19 = EVENNESS RAREFIED IN ORGANIC 20 = RAREFIED EVENNESS EFFECT SIZE Rarefaction.txt is a tab-delimited ASCII file. The file contains Visual Basic code to perform the rarefactions.