Ecological Processes

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	-

The slope of the correlation of individual factors is the sign of the term in the regression equation

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