Figure 4

Community-specific response of different plant species to warming in terms of leaf length (in cm) and leaf width (in mm). The six species shown (Bistorta vivipara, Salix herbacea, Salix reticulata, Carex bigelowii, Calamagrostis stricta, Vaccinium vitis-idaea) responded to 23 years of warming in at least two communities (Dr = Dryas heath, TT = tussock tundra, WM = wet meadow, DH = dry heath).