Relative abundanceA of the core microbiotaB from honey bee guts and crops.

AValues rounded to the nearest tenth of a percent.BA2 is Alpha 2.1; Acetobacteraceae, BT is Snodgrassella alvi[60], G1 is Gilliamella apicola[60], G2 is Frischella.perrara[59], F4 and F5 are Lactobacillus species Firm4 and Firm5, and BF is Bifidobacterium.CSite corresponds to U.S. state; AZ = Arizona, MA = Massachusetts, MD = Maryland.DBacteria not found consistently across published studies when sampling the entire alimentary tract or the mid/hindgut (see text).E1.2% of the library was found to contain Alpha 2.1 when smaller amplicon lengths were allowed.FValues for Lactobacillus sp. Firm 4 and Firm 5 [33] were switched in [32] and are corrected in this table.GOne sequence was found in each sample type.