Fig. 4: The effect of grazing on plant root nitrogen concentration.
From: Long-term grazing effects on soil-borne pathogens are driven by temperature

The effect of grazing on (a) community-level root nitrogen concentration and (b) dominant species root nitrogen concentration. Temperature and precipitation were also fitted as fixed factors to control results by any influence of climate, and plots nested within grassland types were taken as random factors to control for pseudo-replication (n = 50). The line in the middle of the box represents the median, while the upper and lower hinges indicate the first and third quartiles, marking the central 50% of the data distribution. The two-tailed statistical tests indicate significant effects by ***P ≤ 0.001. For exact statistical values, see Supplementary Table 7. Source data are provided as a Source Data file.