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Relationships between relative woody cover and species richness, evenness or ecosystem multifunctionality across differing aridity levels. Significant relationships and their statistics are shown within each panel. For arid environments, regression results with (all) and without (RWC<90%) the sites with RWC > 90% are shown. N = 27, 151 and 46 for dry-subhumid, semiarid and arid environments, respectively.
