Figure 3: Changes in the components of species richness
and aboveground biomass through time for control and NPK treatment. In
regressions represented in A)-E), the solid thick lines represent the
overall effect estimate for NPK (solid) and Control (dashed) treatments,
and the shading around these black lines shows the 95% credible
interval. Each jittered grey point represents a pairwise comparison of a
single plot before NPK nutrient addition (year 0) and for each year
after treatment respectively. Each grey thin line represents the slope
of NPK plots for a site (n=59), estimated as a random effect. The inset
plots represent the overall effect (i.e., slope) estimate of Control
(black) and NPK (colored) treatments, error bars represent 95% credible
intervals, and the dashed reference line at 0 represents a slope of 0
for each metric.