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Table 2 Two-way ANOVA results showing the effects of depth, zone and the interaction between depth and zone on the first three principal components.

From: Phenotypic plasticity or speciation? A case from a clonal marine organism

Parameter

df

PC1

PC2

PC3

MS

F

MS

F

MS

F

Zone

1

0.044

0.279

3.238

3.415

11.553

13.571***

Reef(Zone)

2

0.826

5.198***

3.755

3.96*

0.328

0.385

Depth

1

99.079

623.196***

0.087

0.092

0.029

0.034

Zone*Depth

1

0.100

0.628

0.074

0.078

9.721

11.42***

Error

114

0.159

 

0.948

 

0.851

 
  1. The PCA loading scores were obtained from analysis of 12 morphological features of E. flexuosa in the sampling environments. Note that only eight of the 12 locations were included to achieve a balanced design. Significant values are represented by ***, ** and * for P < 0.001, P < 0.01 and P < 0.05, respectively.