Ecological Archives E088-011-A5

Cynthia G. Hays. 2007. Adaptive phenotypic differentiation across the intertidal gradient in the alga Silvetia compressa. Ecology 88:149–157.

Appendix E. ANOVA designs.

Replicated block ANOVAs for embryos outplanted at each of the three sites; the dependant variable is mean survival of each lineage replicated across outplant plates.

SCOTT’S CREEK

Source

Sum of squares

df

dfdenominator

F

P

Parents’ height

0.315

1

2

1.92

0.30

Outplant height

0.014

1

2

0.031

0.88

Trial

0.219

2

204

1.26

0.29

Parents’ height × trial

0.328

2

204

1.88

0.16

Outplant height × trial

0.928

2

204

5.31

0.006* 

Parents’ height × outplant height

1.007

1

2

183.21

0.005*

Parents’ ht × outplant tide ht × trial

0.001

2

204

0.063

0.94

Residual

17.816

204

     

GREYHOUND

Source

Sum of squares

df

dfdenominator

F

P

Parents’ height

2.93

1

2

3025.4

<0.001* 

Outplant height

0.194

1

2

93.24

0.011* 

Trial

0.027

2

168

0.29

0.75

Parents’ height × trial

0.002

2

168

0.021

0.98

Outplant height × trial

0.004

2

168

0.045

0.96

Parents’ height × outplant height

1.068

1

2

80.93

0.012* 

Parents’ ht × outplant tide ht × trial

0.026

2

168

0.284

0.75

Residual

7.794

168

     

PIGEON POINT

Source

Sum of squares

df

dfdenominator

F

P

Parents’ height

0.037

1

2

6.83

0.12

Outplant height

3.17

1

2

3.858

0.19

Trial

0.152

2

168

0.138

0.14

Parents’ height × trial

0.011

2

168

1.879

0.87

Outplant height × trial

1.64

2

168

21.11

<0.001* 

Parents’ height × outplant height

0.005

1

2

2.17

0.28

Parents’ ht × outplant tide ht × trial

0.004

2

168

0.054

0.95

Residual

6.54

168

     

Split-plot ANOVA for embryos from the three sites exposed to air in the lab; the dependant variable is the arcsin square-root transformed percent survival of embryos from each lineage, exposed to air for 3 h or 6 h.

SCOTT’S CREEK

Source

Sum of squares

df

dfdenominator

F

P

Emersion time

0.717

1

28

20.40

<0.001* 

Slide(emersion time)

0.985

28

28

2.30

0.016*

Parents’ height

0.281

1

28

18.32

<0.001*

Parents’ height × emersion time

0.005

1

28

0.316

0.579

residual

0.429

28

     

GREYHOUND  

Source

Sum of squares

df

dfdenominator

F

P

Emersion time

5.36

1

28

42.59

<0.001* 

Slide(emersion time)

3.52

28

28

4.57

<0.001*

Parents’ height

0.218

1

28

7.913

0.009*

Parents’ height × emersion time

0.002

1

28

0.069

0.795

residual

0.772

28

     

PIGEON POINT

Source

Sum of squares

df

dfdenominator

F

P

Emersion time

7.71

1

28

154.69

<0.001*

Slide(emersion time)

1.40

28

28

2.12

0.026*

Parents’ height

0.006

1

28

0.264

0.611

Parents’ height × emersion time

0.008

1

28

0.350

0.559

residual

0.658

28

     


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