Wood et al. 10.1073/pnas.0700062104.

Supporting Information

Files in this Data Supplement:

SI Table 2
SI Table 3
SI Table 4




Table 2.

Results of an ANOVA after backwards elimination in which predictors explain 17% of the variance in the response, mass of macroalgae consumed by 55 L. littorea individuals maintained in the laboratory

Source

df

Mean square

F

P

Whole model

4

0.208

2.602

0.047

Block

2

0.205

2.561

0.087

Shell length

1

0.326

4.074

0.049

Infection status

1

0.339

4.238

0.045

Error df for all sources = 50.





Table 3. Results of an ANOVA after backwards elimination in which predictors explain 77% of the variance in the change in percent cover of ephemeral macroalgae in experimental cages in the field

Source

df

Mean square

F

P

Whole model

14

0.025

2.696

0.053

Treatment

1

0.083

9.057

0.012

Shell length

1

0.041

4.425

0.059

Block

6

0.039

4.264

0.018

Block ´ treatment

6

0.026

2.867

0.062

Analysis compares infected versus uninfected treatments. Error df for all sources = 11.





Table 4. Results of an ANOVA after backwards elimination in which predictors explain 56% of the variance in the change in the first principal component of macroalgal community composition

Source

df

Mean square

F

P

Whole model

7

2.682

3.234

0.021

Treatment

1

4.397

5.301

0.034

Block

6

2.586

3.118

0.028

Analysis compares infected versus uninfected treatments. Error df for all sources = 18.