Changes in trait divergence and convergence along a productivity gradient in wet meadows.

Highlights: [•] Trait convergence dominates at the landscape scale, but not at fine scale. [•] Divergence occurs within 1m2 plots using trait-combinations or phylogeny. [•] Functional divergence decreases with increasing productivity and species richness. [•] Patterns depend on spatial scale, environmental variation and traits used. [ABSTRACT FROM AUTHOR]