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Table 7 Results of two-sided ANOVA analyses with locality and waterbody type as fixed factors and the three first PCs as dependent variables

From: A comparative study of shell variation in two morphotypes of Lymnaea stagnalis (Mollusca: Gastropoda: Pulmonata)

Variables

df

MS

F

pvalue

L. stagnalis s. str

 PC1

    

  Locality

11

32.235

27.052

0.000

  Type of waterbody

2

42.950

36.044

0.000

  Locality × waterbody type

22

22.101

24.421

0.000

 PC2

    

  Locality

11

6.501

16.700

0.000

  Type of waterbody

2

7.476

19.202

0.000

  Locality × waterbody type

22

5.366

13.781

0.000

 PC3

    

  Locality

11

0.586

5.786

0.000

  Type of waterbody

2

0.560

5.529

0.004

  Locality × waterbody type

22

0.593

5.583

0.000

L. fragilis

 PC1

    

  Locality

11

21.27

46.200

0.000

  Type of waterbody

2

44.3

96.265

0.000

  Locality × waterbody type

22

20.4

44.325

0.000

 PC2

    

  Locality

11

3.912

23.423

0.000

  Type of waterbody

2

1.417

8.487

0.000

  Locality × waterbody type

22

4.248

25.436

0.000

 PC3

    

  Locality

11

0.509

5.534

0.000

  Type of waterbody

2

0.259

2.281

0.06

  Locality × waterbody type

22

0.500

5.446

0.000