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Table 5 Multiple linear regression analysis results testing data for size of specimens against factors of moraine age and distance from Skaftafelsheiði for B. pubescens and both Salix species

From: Spatial and temporal dynamics of growth of woody plant species (birch and willows) on the foreland of a retreating glacier in southern Iceland

Species   R squared P value Slope
B. pubescens 0.242   
 Age   0.002 -
 Distance   0.576 +
S. lanata 0.134   
 Age   0.552 -
 Distance   0.026 -
S. phylicifolia 0.094   
 Age   0.211 -
 Distance   0.146 -
  1. The slope of the correlation of individual factors is the sign of the term in the regression equation