Table 10.
Results from a linear mixed effects model with nest boxes nested in woodland compartment to investigate the differences in the nine ‘compartments’ or geographical areas at Wytham Woods, Oxfordshire UK and differences among the 3 years in nest sizes of blue tits (Cyanistes caeruleus) (n = 803 nests); degrees of freedom were calculated from Satterthwaite approximations; p-values were calculated from Wald tests. This model had an R2 of 0.404.
| parameter | estimate ± s.e. | d.f. | T-value | p |
|---|---|---|---|---|
| intercept | 7.015 ± 8.449 | 644.40 | 0.830 | 0.407 |
| year | −0.003 ± 0.004 | 644.30 | −0.791 | 0.429 |
| nested random effect | Chi d.f. | χ2 | p | |
| compartment : nest box ID | 1 | 17.7 | 3 × 10−5 |