Ecological Archives E095-172-A2

Zhengjie Li, Wenqing Wang, Yihui Zhang. 2014. Recruitment and herbivory affect spread of invasive Spartina alterniflora in China. Ecology 95:1972–1980. http://dx.doi.org/10.1890/13-2283.1

Appendix B. Two ANOVA tables for crab densities and Spartina alterniflora seed predation in four habitats.

Table B1. ANOVA table for crab densities in Spring and Autumn in four different habitats (Fig. 2).

Season

Source

df

Sum of squares

F ratio

P value

Autumn

Habitat

3

1

5.1

0.002

Species

4

30

88.8

<0.001

Habitat × Species

12

16

15.6

<0.001

Error

280

24

 

 

Spring

Habitat

3

1

2.4

0.067

 

Species

4

74

103.8

<0.001

 

Habitat × Species

12

72

33.7

<0.001

 

Error

280

50

 

 

 

Table B2. ANOVA table for Spartina alterniflora seed predation between exclosure and control treatment in four different habitats (Fig. 3).

Source

df

Sum of squares

F Ratio

P value

Habitat

3

18607

9.3

< 0.001

Treatments

1

36906

55.3

< 0.001

Habitat × Treatments

3

18607

9.3

< 0.001

Error

152

101475

 

 


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