Fig. 6: Frequency distributions of experimental TRs of the different contact clusters of the single-species(L96) and multi-species (F96) biofilms.
From: A formal analysis of Listeria monocytogenes cross-contamination dynamics in multi-species biofilms

The lines represent the probability density functions (PDF) of the best-fit distributions obtained for each case: gamma distribution (dashed line) and log-normal distribution (solid line).