Ecological Archives M078-015-A4

Laura E. Petes, Bruce A. Menge, and Alyssa L. Harris. 2008. Intertidal mussels exhibit energetic trade-offs between reproduction and stress resistance. Ecological Monographs 78:387–402.

Appendix D. Results of four-factor ANOVA on a data subset from field surveys examining effects of month, site, edge, sex, and all possible interactions on gonadosomatic index and carotenoid content.

TABLE D1. Results of four-factor ANOVA on a data subset from field surveys examining effects of month, site, edge, sex, and all possible interactions on gonadosomatic index and carotenoid content. Both responses were ln-transformed to improve normality. All values with P < 0.05 are in boldface.

 

Gonadosomatic index

Carotenoids

Parameter

df

SS

F

P

df

SS

F

P

Month

5

2.40

3.56

0.004

3

2.71

3.97

0.009

Site

1

2.87

21.33

<0.0001

1

2.53

11.11

0.001

Edge

1

8.82

65.55

<0.0001

1

21.43

94.10

<0.0001

Sex

1

2.69

20.00

<0.0001

1

2.19

9.62

0.002

Edge × site

1

0.04

0.28

0.60

1

1.90

8.35

0.004

Sex × site

1

0.07

0.50

0.48

1

1.04

4.55

0.03

Sex × edge

1

0.01

0.10

0.75

1

10.98

48.23

<0.0001

Edge × site × sex

1

0.11

0.84

0.36

1

0.19

0.82

0.37

Month × site

5

1.26

1.87

0.10

3

2.54

3.72

0.01

Month × edge

5

3.10

4.59

0.0005

3

1.48

2.16

0.10

Month × sex

5

1.12

1.67

0.14

3

2.48

3.63

0.01

Month × sex × edge

5

0.90

1.33

0.25

3

0.73

1.07

0.36

Month × site × edge

5

1.44

2.14

0.06

3

0.69

1.00

0.39

Month × sex × site

5

0.54

0.81

0.55

3

2.36

3.45

0.02

Month × sex × site × edge

5

0.35

0.51

0.76

3

1.60

2.35

0.08

Error

240

32.30

 

 

160

36.44

 

 

Total

287

58.01

 

<0.0001

191

91.29

 

<0.0001


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