Table 1.
Bacterial species compete. Competition, KB dilution and their interaction (competition × KB) affected P. fluorescens and S. marcescens population densities with very high statistical significance, by ANOVA.
| d.f. | sum-squared | mean-squared | F-value | Pr(>F) | |
|---|---|---|---|---|---|
| ANOVA table for P. fluorescens. Response: log(density) | |||||
| competition | 1 | 5.91 | 5.91 | 75.42 | 3.961e−14*** |
| KB dilution | 7 | 339.45 | 48.49 | 618.75 | <2.2e−16*** |
| competition × KB | 7 | 4.65 | 0.66 | 8.4765 | 2.860e−08*** |
| residuals | 110 | 8.62 | 0.08 | ||
| ANOVA table for S. marcescens. Response: log(density) | |||||
| competition | 1 | 0.97 | 0.97 | 11.807 | 0.000836*** |
| KB dilution | 7 | 625.19 | 89.31 | 1090.763 | <2.2e−16*** |
| competition × KB | 7 | 7.76 | 1.11 | 13.534 | 1.739e−12*** |
| residuals | 109 | 8.93 | 0.08 | ||
***p < 0.001.