Figure 4.

Summary of ADD modeling results. Within the inner line cycle, all 188 species from 11 subjects were used to analyze the abundance-distance dispersion (ADD) relationships of gut microbiota. The number in parentheses indicates that the ADD relationships in 172 of the total 188 species (91.49%) fit the ADD model (a, species at least shared by six subjects; b, species shared by 2 to 5 subjects; c, species unique to subject). Within the middle dashed cycle, the number in parentheses represents how many species in all 188 species existed in each subject (from S400 to S410). Within the outer dashed cycle, the bold number indicates how many species fit the ADD model in each subject (relative percentage was shown in parentheses); X/Y/Z in parentheses: X represents the ADD model fitted species shared by all seven gut sites, Y represents those shared by two to six gut sites and Z represents those unique to specific gut sites.