Figure 1. Population average reaction norms for growth-related traits of Trifolium montanum, Ranunculus bulbosus and Briza media in response to ambient and elevated temperature in a climate chamber experiment.

(a) total biomass (above-ground biomass for Briza media), (b) leaf length, (c) growth rate, (d) specific leaf area and (e) proportion of above ground biomass. Solid lines indicate high elevation plants (1800 m a.s.l.) and dashed lines low elevation plants (1200 m a.s.l.). Error bars indicate standard errors of trait means.