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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 but not by the same female (n = 258). This model had an R2 of 0.24.
| estimate ± s.e. | T-value | |||
|---|---|---|---|---|
| intercept | 0.335 ± 0.013 | 25.86 | ||
| random effect | Chi d.f. | χ2 | p-value | |
| box number | 1 | 1.25 | 0.26 | |
| compartment | 1 | 5.68 | 0.02 | |
| year | 1 | 0.03 | 0.87 |
