Fig. 4

Alpha diversity metrics of Cooloola root and bulk soil microbial communities across the six sampling sites. See Fig. 1 for number of samples in each group. Box and whisker plots showing a observed species richness, b estimated species richness (chao1), and c Faith’s phylogenetic diversity. White rectangles represent bulk soil communities and grey rectangles represent root communities. The centre line within rectangles represents the median values, and the two ends of the rectangles represent upper and lower quartiles. The upper whisker extends to the highest value within 1.5× the interquartile range above the upper quartile, whereas the lower whisker extends to the lowest value within 1.5× the interquartile range below the lower quartile. Values outside this range are represented by black dots. Total number of root samples is 183 and soil samples is 225