Fig. 2.

Rank matrix for the 50 most abundant OTUs for F11 and F18. Rank matrix corresponding to the most and less time-variable volunteers, F11 and F18 respectively. Both plots represent the 50 most abundant OTUs, and heat-map colors corresponds to the abundance of each OTU at each time, ranging from light-yellow for rank 1, to black, representing very low ranks. Alongside, the Rank Stability Index (RSI) is colored by the percentage of rank stability, following the same color-code as before. Below, both Rank and Difference Variability (DV) is plotted in red and blue colors for each time point