Fig 2. Linear relationship of the metagenomic ARGs as a function of bacterial richness.

The dotted slope estimate based on the theoretical model suggests a linear relationship between bacterial richness and the number of resistance genes in the community with a zero intercept and a slope equal to pN = 7.66e−04 · 2122 = 1.63. The solid slope estimate from a linear regression on the empirical data estimates the slope is 1.67.