Table 1.
Statistical results for behavioural responses of Daphnia during 9 min trials. (Factors include size (large or small animal), population (populations either reared in UVR (exposed) or in regular PAR-light (unexposed)), and UV (UVR or non-UVR exposure during the 9 min trial). Bold text indicates significant results.)
| behaviour | |||||
|---|---|---|---|---|---|
| factor | num d.f. | den d.f. | F | p-value | |
| depth (mm) | |||||
| size | 1 | 23 | 0.1 | 0.753 | |
| population | 1 | 23 | 0.7 | 0.415 | |
| UV | 2 | 208 | 120.6 | <0.0001 | |
| size : pop | 1 | 23 | 1.0 | 0.329 | |
| size : UV | 2 | 208 | 5.4 | 0.005 | |
| pop : UV | 2 | 208 | 0.1 | 0.912 | |
| size : pop : UV | 2 | 208 | 0.4 | 0.647 | |
| speed (mm s–1) | |||||
| size | 1 | 23 | 77.7 | <0.0001 | |
| population | 1 | 23 | 7.8 | 0.010 | |
| UV | 2 | 208 | 25.8 | <0.0001 | |
| size : pop | 1 | 23 | 5.4 | 0.029 | |
| size : UV | 2 | 208 | 1.4 | 0.237 | |
| Pop : UV | 2 | 208 | 0.5 | 0.635 | |
| size : pop : UV | 2 | 208 | 1.2 | 0.306 | |
| total distance travelled (mm) | |||||
| size | 1 | 23 | 81.5 | <0.0001 | |
| population | 1 | 23 | 7.9 | 0.010 | |
| UV | 2 | 208 | 509.7 | <0.0001 | |
| size : pop | 1 | 23 | 2.5 | 0.125 | |
| size : UV | 2 | 208 | 0.2 | 0.853 | |
| pop : UV | 2 | 208 | 0.1 | 0.862 | |
| size : pop : UV | 2 | 208 | 0.3 | 0.726 | |