Ecological Archives E086-031-A1

Tiffany M. Knight and Robert D. Holt. 2005. Fire generates spatial gradients in herbivory: an example from a Florida sandhill ecosystem. Ecology 86:587–593.

Appendix A (Table A1). ANOVA results for each plant species of the main effects of location, time, and their interaction on the total percentage of vegetative herbivory observed (arcsine-transformed).



Species

Source

Sum of squares

df

Mean square

F

P


Asimina incarna

Location

3.55

1

3.55

119.1

<0.001

 

Time

3.40

1

3.40

113.9

<0.001

 

Location × Time

0.50

1

0.50

16.77

0.003

 

Error

0.24

8

11.030

 
 

Croton argyranthemus

Location

6.55

1

6.55

73.00

<0.001

 

Time

4.47

1

4.47

49.89

<0.001

 

Location × Time

0.14

1

0.14

1.52

0.25

 

Error

0.72

8

0.09

 
 

Diospyros virginiana

Location

4.79

1

4.79

43.98

<0.001

 

Time

1.21

1

1.21

11.14

0.01

 

Location × Time

0.001

1

0.001

0.007

0.934

 

Error

0.87

8

0.11

 
 

Eriogonum tomentosum

Location

5.15

1

5.15

369.0

<0.001

 

Time

1.47

1

1.47

105.0

<0.001

 

Location × Time

0.042

1

0.042

2.992

0.122

 

Error

0.11

8

0.014

 
 

Licania michauxii

Location

5.85

1

5.85

48.78

<0.001

 

Time

1.97

1

1.97

16.42

0.004

 

Location × Time

0.63

1

0.63

5.235

0.051

 

Error

0.96

8

0.12

 
 

Quercus laevis

Location

6.78

1

6.78

65.65

<0.001

 

Time

2.70

1

2.70

26.14

0.001

 

Location × Time

0.76

1

0.76

7.33

0.027

 

Error

0.83

8

0.10

 
 

Rhynchosia reniformis

Location

7.08

1

7.08

65.05

<0.001

 

Time

0.26

1

0.26

2.39

0.160

 

Location × Time

0.007

1

0.007

0.066

0.804

 

Error

0.87

8

0.11

 
 

Tephrosia virginiana

Location

10.1

1

10.1

67.13

<0.001

 

Time

2.34

1

2.34

15.47

0.004

 

Location × Time

1.05

1

1.05

6.97

0.030

 

Error

1.21

8

0.15

 
 

   Notes: Main effects of location (edge of burn, interior of burn), time (May, August) and their interaction on the total percentage vegetative herbivory observed (arcsine-transformed).  N = 3 burned sites.



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