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Table 1 Model results for S. acaulis response to simulated global change

From: Simulated global change: contrasting short and medium term growth and reproductive responses of a common alpine/Arctic cushion plant to experimental warming and nutrient enhancement

a) Stem elongation     
Factor effects df MS F value p
Temperature 1 4.227 27.496 <0.0001
Nutrient 1 9.731 63.298 <0.0001
Year 1 0.956 6.221 0.02
Nutrient x Year 1 0.093 0.611 0.44
Temperature x Year 1 0.200 1.306 0.26
Nutrient x Temperature 1 0.030 0.196 0.66
Temp x Nutrient x Year 1 0.266 1.732 0.19
Residual 52 0.153   
b ) Leaf length     
Factor effects df MS F value p
Temperature 1 0.242 11.598 0.001
Nutrient 1 0.357 17.076 < 0.001
Year 1 0.204 9.783 0.003
Nutrient x Year 1 0.006 0.263 0.61
Temperature x Year 1 < 0.001 0.005 0.94
Nutrient x Temperature 1 < 0.001 0.002 0.97
Temp x Nutrient x Year 1 0.009 0.447 0.51
Residual 52 0.021   
c ) Cover     
Factor effects df MS F value p
Temperature 1 197.928 8.849 0.003
Nutrient 1 33.660 1.505 0.22
Year 1 23.100 1.033 0.31
Nutrient x Year 1 183.143 8.188 0.005
Temperature x Year 1 10.968 0.490 0.49
Nutrient x Temperature 1 59.083 2.642 0.10
Temp x Nutrient x Year 1 17.594 0.787 0.38
Residual 88 22.368   
d ) Fruit production     
Factor effects df MS F value p
Temperature 1 15.782 10.096 0.002
Nutrient 1 0.601 0.385 0.54
Year 1 9.791 6.264 < 0.001
Nutrient x Year 1 6.356 4.066 0.002
Temperature x Year 1 1.762 1.127 0.35
Nutrient x Temperature 1 5.161 3.302 0.07
Temp x Nutrient x Year 1 1.460 0.934 0.46
Residual 96 1.563   
  1. Analyses of variance for a) stem elongation (log transformed) 1996–1998, b) leaf length 1996–1998, c) cover 1995–2001, and (d) fruit production (log transformed) 1995–2000 of Silene acaulis. The factor and interaction effects are from a three factor ANOVA with Temperature, Nutrient and Year as fixed factors.