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 |
|
|