Ecological Archives E096-024-A2

Kylla M. Benes and Robert C. Carpenter. 2015. Kelp canopy facilitates understory algal assemblage via competitive release during early stages of secondary succession. Ecology 96:241251. http://dx.doi.org/10.1890/14-0076.1

Appendix B. ANOVA of observational data on the distribution and abundance of macroalgal groups.

Table B1. The effects of canopy, season, and year on the percent cover of foliose red algae, brown algae, articulated coralline algae and crustose coralline algae. Data were arcsine transformed and then analyzed using a three-way, mixed model ANOVA in which canopy and season were treated as fixed factors and year as a random factor. Significant P values are shown in bold.

Source

MS

df

F ratio

P value

Source

MS

df

F ratio

P value

Foliose Red Algae

       

Articulated Corallines

       

Canopy

2.000

1

2.946

0.336

Canopy

0.454

1

1.460

0.440

Season

0.279

1

3.671

0.306

Season

0.973

1

3.211

0.324

Year

0.001

1

0.028

0.867

Year

0.441

1

6.952

0.009

Canopy × Season

0.074

1

8.222

0.214

Canopy × Season

0.049

1

5.444

0.258

Canopy × Year

0.679

1

18.982

<0.001

Canopy × Year

0.311

1

4.903

0.028

Season × Year

0.076

1

2.125

0.146

Season × Year

0.303

1

4.777

0.030

C × S × Y

0.009

1

0.252

0.616

C × S × Y

0.009

1

0.142

0.707

Error

0.036

328

 

 

Error

0.063

328

 

 

Brown Algae

Crustose Corallines

Canopy

19.344

1

1074.667

0.019

Canopy

0.002

1

0.003

0.967

Season

0.155

1

19.375

0.142

Season

0.650

1

3.571

0.310

Year

0.147

1

3.831

0.051

Year

0.066

1

0.741

0.390

Canopy × Season

0.835

1

64.231

0.079

Canopy × Season

2.862

1

3.741

0.304

Canopy × Year

0.018

1

0.469

0.494

Canopy × Year

0.743

1

8.345

0.004

Season × Year

0.008

1

0.208

0.648

Season × Year

0.182

1

2.044

0.154

C × S × Y

0.013

1

0.339

0.561

C × S × Y

0.765

1

8.592

0.004

Error

0.038

328

 

 

Error

0.089

328

 

 


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