Fig. 3

Statistics of diversity of the selected agricultural soil microbiomes. a Number of genera per soil treatment. The center line shows the median (3543 taxa per sample). The most diverse treatment counts 3802 genera (Germany_2_HRO_C), the least diverse treatment 2881 genera (Cyprus_RS_E100). Box limits indicate the 25th and 75th percentiles as determined by R software; whiskers extend 1.5 times the interquartile range from the 25th and 75th percentiles, data points are represented by dots; width of the boxes is proportional to the square root of the sample size; n \(=\) 68 data points. b Prevalence of genera per treatment. For each of the 4508 genera on the x-axis a scatter is plotted representing the number of treatments out of the total 68 treatments it is prevalent. The data was sorted by prevalence. The Scatterplot shows an accumulation of data points at 65–68 treatments, meaning that a large proportion (46%) of the 4508 identified genera occurs in all 68 treatments and constitutes the core microbiome. For genera occurring in one to ten treatments, also an accumulation is visible. These are the genera that represent specialists, which are typical or specific for a treatment or group of treatments