Table 4. Model selection table for variables explaining time a Western Bluebird spent within 10 m of the nest box in response to short-term traffic noise playback.
| Model | K | AICc | ΔAICc | weight |
|---|---|---|---|---|
| null | 3 | 359.375 | 0.000 | 0.183 |
| Treatment (−), trial (−), treatment*trial (+) | 6 | 359.551 | 0.176 | 0.168 |
| Ordinal date (+) | 4 | 360.308 | 0.933 | 0.115 |
| Ordinal date (+), treatment (−), trial (−), treatment*trial (+) | 7 | 360.479 | 1.105 | 0.106 |
| Brood size (+), treatment (−), trial (−), treatment*trial (+) | 7 | 360.482 | 1.108 | 0.105 |
| Trial (+) | 4 | 360.779 | 1.404 | 0.091 |
| Brood size (+) | 4 | 360.997 | 1.623 | 0.081 |
| Parent sex (+) | 4 | 361.001 | 1.627 | 0.081 |
| Parent sex (+), treatment (−), trial (−), treatment*trial (+) | 7 | 361.322 | 1.947 | 0.069 |
Note:
Response was natural log transformed after the quantitative adjustment of adding 1 to all values. The ordinal date was center and scaled. +/− shows the direction of the trends. Bolded values show parameters with 95% CIs that do not overlap zero.