Figure 2
From: Qualitative microbiome profiling along a wastewater system in Kampala, Uganda

Linear regression analysis of Escherichia coli strains (ECS) and the total number of observed strains (NOS). This regression shows the relation between the intra-species diversity of E. coli and the total diversity among all bacteria (R2 = 0.958, P < 10−4). The total number of observed species can be estimated along the Nakivubo system using the following equation: NOS = 62.2 + 7.94 × ECS.