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Results from a linear mixed effects model examining factors affecting nest sizes of blue tits (Cyanistes caeruleus) in Wytham woods, Oxfordshire. This analysis was run on a subset of data where nestboxes were used more than once in the study period (n = 444). This model had an R2 of 0.388.
| estimate ± s.e. | T-value | |||
|---|---|---|---|---|
| intercept | 0.331 ± 0.012 | 27.06 | ||
| random effect | Chi d.f. | χ2 | p-value | |
| box number | 1 | 11.07 | 9 × 10−4 | |
| compartment | 1 | 14.18 | 2× 10−4 | |
| year | 1 | 0.79 | 0.400 |
