Ecological Archives E088-041-A7

Donna Drury McCall and Chet F. Rakocinski. 2007. Grass shrimp (Palaemonetes spp.) play a pivotal trophic role in enhancing Ruppia maritima. Ecology 88:618–624.

Appendix G (Table G1). Results of split-plot ANOVA for experiments 1–3.

 

Exp 1

Exp 1

Exp 1

Exp 2

Exp 2

Exp 2

Exp 3

Exp 3

Exp 3

Response

df

F

P

df

F

P

df

F

P

 Site (block)

                 

SAV Biomass

2

 1.025

0.494

2

1.884

0.347

2

  7.491

0.118

Shoot Number

2

12.195

0.076

2

0.615

0.619

2

11.447

0.080

Chl [a]

2

  0.498

0.668

2

 0.337

0.748

2

 7.660

0.115

Nutrient

                 

SAV Biomass

1

3.608

0.198

1

 2.782

0.231

1

1.523

0.342

Shoot Number

1

1.623

0.331

1

1.417

0.355

1

0.775

0.472

Chl [a]

1

0.378

0.601

1

 0.394

0.583

1

24.839

0.034

Site × Nutrient

                 

(main plot error)

                 

SAV Biomass

2

0.724

0.492

2

 0.431

0.654

2

1.702

0.197

Shoot Number

2

0.360

0.700

2

1.893

0.167

2

0.669

0.519

Chl [a]

2

 2.458

0.100

2

 0.914

0.414

2

 0.259

0.773

Shrimp

                 

SAV Biomass

3

3.226

0.034

3

 11.197

<0.001

3

 2.755

0.057

Shoot Number

3

3.288

0.032

3

 15.500

<0.001

3

1.817

0.162

Chl [a]

3

 6.507

0.001

3

 0.850

 0.479

3

 1.579

0.213

Shrimp × Nutrient

                 

SAV Biomass

3

0.103

0.958

3

 1.060

0.379

3

1.269

0.300

Shoot Number

3

0.283

0.838

3

 1.139

0.348

3

0.394

0.758

Chl [a]

3

 0.224

0.879

3

 0.785

0.513

3

 1.515

0.229

Split Plot error

                 

SAV Biomass

36

*

 

33

**

 

35

   

Shoot Number

36

   

33

   

36

   

Chl [a]

35

***

 

26

***

 

33

***

 

* = Box-Cox transformed values homogeneous; ** = raw values mildly heterogeneous (F = 2.642; P = 0.014); *** = log10 values homogeneous.



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