The stochastic logistic model with correlated carrying capacities reproduces beta-diversity metrics of microbial communities
Fig 4
Overlap-Dissimilarity curves in the model and in empirical data.
A) Relationship between Overlap and Dissimilarity for communities generated with the model. The color of the circles corresponds to the correlation ρk of the values of K of the community pair, ranging from 0.6 to 1. The two insets show scatter plots of the abundances in two pairs of communities, one with a high ρk and one with a low ρk. Blue circles represent OTUs sampled in both communities, orange circles OTUs sampled in only one community, and red circles OTUs sampled in neither. The dotted lines mark 1/Nreads. B) Relationship between overlap and dissimilarity in empirical data (black circles: samples from the same hosts, grey squares: samples from different hosts) and according to the model (red circles, binned average of model prediction). The inset shows the same plot with a logarithmic scale on the x axis. For the main plot, the binned average of the model prediction is performed along the y axis, to better capture the pattern at high overlap values.