Figure 2. Relative importance of response groups I, II, III and IV when habitat (a), seed mass (b), life cycle type (c), altitudinal distribution (d) and functional group (e) are considered.

I, species with a negative germination response to temperature fluctuation; II, species with a positive germination response to temperature fluctuation; III, species that cannot germinate well regardless of the temperature fluctuation; IV, species that can attain a high germination percentage regardless of the temperature fluctuation. AM: alpine/ subalpine meadow; DG: disturbed ground; FS: forest margin/scrub; ML: marshland; DS: dry sunny slope.