Ecological Archives E096-024-A4
Kylla M. Benes and Robert C. Carpenter. 2015. Kelp canopy facilitates understory algal assemblage via competitive release during early stages of secondary succession. Ecology 96:241–251. http://dx.doi.org/10.1890/14-0076.1
Appendix D. ANOVA of recruitment of each macroalgal group following the canopy manipulation.
Table D1. The effects of canopy, block, and plot (main effects) in the days (time effects) following the initiation of the experiment for the recruitment of each functional group of algae. The experiment was designed as a split-plot and data were arcsine transformed then analyzed using a mixed model ANOVA in which canopy and plot were treated as fixed factors and block and days as random factors. Dashes are used to represent factors in which a statistical test was not valid. Significant P values are shown in bold.
Source (Main Effects) |
MS |
df |
F ratio |
P value |
Foliose Red Algae |
||||
Canopy |
0.076 |
1 |
0.521 |
0.523 |
Block |
0.250 |
3 |
0.143 |
0.933 |
Block × Canopy |
0.146 |
3 |
||
Plot |
0.632 |
2 |
7.827 |
0.007 |
Canopy × Plot |
0.328 |
2 |
4.056 |
0.045 |
Plot × Block + Canopy × Plot × Block |
0.081 |
12 |
||
Error |
1.743 |
22 |
|
|
Brown Algae |
||||
Canopy |
5.610 |
1 |
47.011 |
0.006 |
Block |
0.159 |
3 |
3.698 |
0.027 |
Block × Canopy |
0.119 |
3 |
||
Plot |
0.076 |
2 |
2.263 |
0.147 |
Canopy × Plot |
0.226 |
2 |
6.715 |
0.011 |
Plot × Block + Canopy × Plot × Block |
0.034 |
12 |
||
Error |
0.043 |
22 |
|
|
Articulates Corallines |
||||
Canopy |
6.166 |
1 |
40.039 |
0.008 |
Block |
0.251 |
3 |
1.755 |
0.185 |
Block × Canopy |
0.154 |
3 |
||
Plot |
2.153 |
2 |
17.962 |
<0.001 |
Canopy × Plot |
0.086 |
2 |
0.713 |
0.510 |
Plot × Block + Canopy × Plot × Block |
0.120 |
12 |
||
Error |
0.143 |
22 |
|
|
Crustose Corallines |
||||
Canopy |
0.154 |
1 |
0.138 |
0.735 |
Block |
0.061 |
3 |
0.553 |
0.651 |
Block × Canopy |
1.115 |
3 |
||
Plot |
0.792 |
2 |
6.196 |
0.014 |
Canopy × Plot |
0.488 |
2 |
3.817 |
0.052 |
Plot × Block + Canopy × Plot × Block |
0.128 |
12 |
||
Error |
0.111 |
22 |
|
|
Source (Time Effects) |
MS |
df |
F ratio |
P value |
Foliose Red Algae |
||||
Days |
0.098 |
6 |
4.364 |
0.002 |
Days × Canopy |
0.014 |
6 |
0.632 |
0.704 |
Days × Block + Days × Canopy × Block |
0.022 |
36 |
||
Days × Plot |
0.005 |
12 |
0.473 |
0.918 |
Days × Canopy × Plot |
0.030 |
12 |
2.099 |
0.019 |
Days × Plot × Block |
0.010 |
36 |
- |
- |
Days × Block × Canopy × Plot + Error |
0.014 |
168 |
|
|
Brown Algae |
||||
Days |
0.184 |
6 |
13.966 |
<0.001 |
Days × Canopy |
0.182 |
6 |
13.827 |
<0.001 |
Days × Block + Days × Canopy × Block |
0.013 |
36 |
||
Days × Plot |
0.038 |
12 |
1.764 |
0.093 |
Days × Canopy × Plot |
0.038 |
12 |
2.135 |
0.017 |
Days × Plot × Block |
0.022 |
36 |
||
Days × Block × Canopy × Plot + Error |
0.018 |
168 |
|
|
Articulates Corallines |
||||
Days |
0.179 |
6 |
6.305 |
<0.001 |
Days × Canopy |
0.358 |
6 |
12.611 |
<0.001 |
Days × Block + Days × Canopy × Block |
0.028 |
36 |
||
Days × Plot |
0.115 |
12 |
3.022 |
0.005 |
Days × Canopy × Plot |
0.037 |
12 |
1.407 |
0.167 |
Days × Plot × Block |
0.038 |
36 |
||
Days × Block × Canopy × Plot + Error |
0.026 |
168 |
|
|
Crustose Corallines |
||||
Days |
0.462 |
6 |
5.518 |
<0.001 |
Days × Canopy |
0.399 |
6 |
4.769 |
0.001 |
Days × Block + Days × Canopy × Block |
0.084 |
36 |
||
Days × Plot |
0.047 |
12 |
0.708 |
0.734 |
Days × Canopy × Plot |
0.060 |
12 |
1.390 |
0.175 |
Days × Plot × Block |
0.066 |
36 |
||
Days × Block × Canopy × Plot + Error |
0.043 |
168 |
|
|