Ecological Archives E084-061-A5

L. Santamaría, J. Figuerola, J. J. Pilon, M. Mjelde, A. J. Green, T. de Boer, R. A. King, and R. J. Gornall. 2003. Plant performance across latitude: the role of plasticity and local adaptation in an aquatic plant. Ecology 84:2454–2461.

Appendix E. Results of mixed-model General Linear Modeling (GLM).

           

Main effects  

Interactions

 

Propagule type

Propagule size

Site (S)

Region (R)

Population (P)

Clone (G)

S × R

S × P

S × G

       

Tuber

Rhizome

df(factor)

2

4

8

36  

8

16

64

 

1  

1

1

df(error)

19–21

9–10

19–23

73–76  

17

77–80

284–296

 

284–296  

284–296

284–296

                                                     

Total biomass

 

163.4

***

16.7

***

0.3

NS

1.7

*

 

2.3

1.7

1.0

NS

 

2.2

NS

 

0.2

NS

2.9

Vegetative biomass

 

103.0

***

21.1

***

0.2

NS

1.6

*

 

3.1

*

1.6

1.0

NS

 

2.6

NS

 

0.2

NS

3.3

Tuber biomass

 

121.5

***

11.7

***

0.6

NS

1.9

*

 

7.7

***

1.8

*

1.2

NS

 

0.6

NS

 

0.8

NS

0.5

NS

Number of tubers

 

272.6

***

11.5

***

0.8

NS

1.7

*

 

13

1.6

1.2

NS

 

2.1

NS

 

0.1

NS

2.0

Tuber size

 

59.0

***

13.3

***

2.2

2.3

**

 

21

***

0.3

NS

1.1

NS

 

0.3

NS

 

13.2

***

0.3

NS

Shoot-to-root ratio

 

16.3

***

3.3

1.8

NS

1.6

*

 

6.9

***

0.9

NS

1.2

NS

 

3.9

*

 

1.0

NS

1.8

NS

Shoot length

 

25.1

***

8.2

**

1.2

NS

0.9

NS

 

2.5

1.6

2.1

***

 

1.3

NS

 

5.7

*

2.0

NS

Number of ramets

 

184.7

***

14.4

***

1.7

NS

1.3

NS

 

4.8

**

1.4

NS

1.2

NS

 

0.7

NS

 

0.1

NS

2.1

NS

   

df(factor)

2

4

9

 
 
 

8

18

 
 
 

1

 

1

1

df(error)

20–21

11–13

21–24

 
 
 

19–21

115–118

 
 
 

115–118

 

115–118

115–118

Survival

 

8.5

**

8.4

**

2.7

*

 
 
 

0.7

NS

0.9

NS

 
 
 

1.0

NS

 

7.5

**

24.6

***

Selection coefficients

10.7

***

1.4

NS

3.5

**

 
 
 

5.3

**

1.4

NS

 
 
 

0.1

NS

 

20.1

***

8.3

**

   Note: Table reports F values and significance levels. Error degrees of freedom vary within the reported ranges due to missing values in some of the dependent variables.

***P < 0.001, **P < 0.01, *P < 0.05.

P < 0.10.


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