Effects of a spatially heterogeneous nutrient distribution on the growth of clonal wetland plants

BMC Ecology

Table 1 Results of the three-way nested ANOVA examining the effects of soil nutrient heterogeneity (homogeneous vs. heterogeneous), growth form (phalanx vs. guerrilla), species (nested within growth forms) and their interaction on growth traits

	Effect
	H	G	S-G	H x G	H x (S-G)
Aboveground biomass (g)	0.333^ns	0.049^ns	64.658^***	29.223^***	4.541^**
Belowground biomass (g)	2.790^ns	25.248^***	81.580^***	29.653^***	3.079^*
Total biomass (g)	0.403^ns	15.078^***	91.644^***	38.097^***	3.199^*
Plant height (cm)	1.182^ns	4.780^*	326.880^***	73.725^***	8.180^***
Ramet number	13.341^***	11.985^***	101.228^***	63.315^***	3.297^**
Belowground/aboveground ratio (g.g⁻¹)	5.782^*	55.707^***	37.146^***	4.460^*	2.648^*
Spacer diameter (mm)	0.001^ns	222.237^***	67.196^***	3.648^ns	1.181^ns
Spacer length (cm)	1.689^ns	0.007^ns	20.190^***	38.891^***	3.037^*

*Soil nutrient heterogeneity (H), growth form (G) and species (S-G). * Values are F; significant P values (*P < 0.05, **P < 0.01, ***P < 0.001 and ^nsP ≥ 0.05)

ISSN: 1472-6785