Table 1.
Analysis of variance results
| Response | Effect | df | F | P value | ɷ2 |
|---|---|---|---|---|---|
| Grazer diversity | Supply size | 3,40 | 13.9 | <0.0001 | 39.2 |
| Supply frequency | 1,40 | 12.2 | <0.01 | 11.3 | |
| Size × frequency | 3,40 | 1.31 | NS | ||
| Grazer richness | Supply size | 3,40 | 3.2 | <0.05 | 11.1 |
| Supply frequency | 1,40 | 7.9 | <0.01 | 11.6 | |
| Size × frequency | 3,40 | 0.5 | NS | ||
| Grazer evenness | Supply size | 3,40 | 10.4 | <0.0001 | 35.7 |
| Supply frequency | 1,40 | 7.6 | <0.01 | 6.7 | |
| Size × frequency | 3,40 | 1.3 | NS | ||
| Grazer abundance | Supply size | 3,40 | 1.4 | NS | |
| Supply frequency | 1,40 | 14.5 | <0.001 | 12.0 | |
| Size × frequency | 3,40 | 4.7 | <0.01 | 8.3 | |
| Algal biomass | Supply size | 3,40 | 6.8 | <0.001 | 25.5 |
| Supply frequency | 1,40 | 1.8 | NS | ||
| Size × frequency | 3,40 | 2.0 | NS | ||
| Grazer biomass | Supply size | 3,40 | 7.48 | <0.001 | 19.8 |
| Supply frequency | 1,40 | 21.7 | <0.0001 | 21.0 | |
| Size × frequency | 3,40 | 4.37 | <0.01 | 10.3 |
Effects of propagule supply magnitude and frequency on grazer Shannon–Weiner diversity, species richness, Pielou's evenness, abundance, and biomass, and algal production. NS, not significant.