Figure 2. Relationships between species richness and proportional leaf damage, leaf nitrogen concentrations and specific leaf area of Plantago lanceolata.

Proportional leaf damage (a–b), leaf nitrogen concentrations (c–d), and specific leaf area (e–f) of P. lanceolata plotted as mean values per plot against sown species richness (a, c, e) and as mean values (±1 SE) for older and younger adult leaves of reproductive (rep) and vegetative (veg) shoots across plots (b, d, f). Regression lines indicate significant species-richness effects.