Fig. S3.

Cover of N-fixers (A–C), grasses (D–F), and exotics (G–I) under different combinations of watering and fertilization in harsh, lush, and nonserpentine plots. Treatment significances refer to results of LME models where the cover of each functional group was explained by habitat, watering, fertilization, and their interactions, and plots were nested within lines. Grasses were log-transformed, N-fixers log (x + 0.1) –transformed, and exotics square root-transformed for the analyses. F, fertilization; FW, fertilization and watering; H, habitat; W, watering. Significance codes: ***P < 0.001, **P < 0.01, *P < 0.07. Only significant (P ≤ 0.07) results are shown.