Figure legends
Figure 1. Common garden. Early-season relative
differences in species growth rates in monoculture
(\({\text{RGR}_{t}}_{\text{ij}},\ t=53\)) predict relative differences
in species biomass (\(B_{\text{ij}}\)) at harvest date (\(t=171\)) in
A) ten pairwise mixtures of five species and B) ten combination of pairs
of species within five species mixtures under productive (left panels)
and unproductive (right panels) conditions. Relative differences were
calculated as the natural logarithm of the ratio between pairs of
species in a treatment combination. Al =Alopecurus
pratensis , An =Anthoxanthum odoratum ,Ar =Arrhenatherum elatius , F =Festuca rubra ,H =Holcus lanatus . The grey region indicates the 95%
confidence interval around the regression.
Figure 2. Field experiment. RGR predicts competitive
dominance and exclusion. A) Early-season relative differences in species
growth rates in a nutrient addition combination
(\({\text{RGR}_{t}}_{\text{ij}}\)) predict relative differences in
species biomass in pairs of species combinations of the respecting
nutrient addition combination (\(B_{\text{ij}}\)) at harvest date
(\(t=213-221\)). B) Early season growth rate in a nutrient addition
combination (RGR) predicts the likelihood of a species to be lost in the
respecting nutrient addition combination (Likelihood of loss; a species
was considered lost when it was present in a plot in 2011 and absent
from that plot in 2013). Dots in Fig. B indicate RGR at day t of
species that were lost (1) or not lost (0). Results are shown for the
day t at which the percentage of variation explained by the
regression (R2) was maximum for each nutrient addition
combination (see Fig. S2). Within each graph (A, B) fertile conditions
with added N (right) are separated from less fertile conditions without
added N (left). The grey region indicates the 95% confidence interval
around the regression.