Figure 6
From: Exposure to airborne bacteria depends upon vertical stratification and vegetation complexity
The upper panels show scatterplots of Spearman’s correlations (rs) between bacterial alpha diversity (for all habitats) and distance to nearest trees: (a) air-only samples, and (b) soil-only samples. X-axis shows distance (m) to nearest trees from sampling points. The lower panels show scatterplots of Spearman’s correlations between bacterial alpha diversity (for all habitats) and tree canopy coverage within the sampling point radii: (c) 10 m, (d) 25 m, (e) 50 m, and (f) 100 m. These relate to air-only samples. X-axis shows tree canopy coverage (m2). Y-axis for both upper and lower panels shows bacterial alpha diversity of samples according to the Shannon diversity index (H). Coloured shading indicates the 95% confidence intervals for each linear regression. Inset also shows bootstrap results (β) with 2.5% and 97.5% slopes. N.S (not significant).
