Table 3 Comparison of predation rates of N. melanostomus on Gammarus pulex based on factorial ANOVA with the factors trial (single species vs. mixed species) and substratum (absence vs. presence)
From: Synergistic impacts by an invasive amphipod and an invasive fish explain native gammarid extinction
Factor | SS | df | MS | F | p |
|---|---|---|---|---|---|
Trial | |||||
| Â | 7284.869 | 1 | 7284.869 | 2.565 | 0.112 |
 Error | 283960.694 | 100 | 2839.607 |  |  |
Substratum | |||||
| Â | 29647.329 | 1 | 29647.329 | 12.256 | 0.001 |
 Error | 241893.087 | 100 | 2418.931 |  |  |
Interaction trial x substratum | |||||
| Â | 20296.829 | 1 | 20296.829 | 6.031 | 0.016 |
 Error | 336567.269 | 100 | 3365.673 |  |  |