Table 1.
Inter-annual variation in asynchrony between breeding birds and the caterpillar food peak, rainfall, max temperature, parental baseline CORT, number fledged and nestling mass for free-living blue tits (2008–2010). Mean ± s.e. are shown; values in italics differ significantly from the other years; * denotes significance at p < 0.05; and ** denotes significance at p < 0.001.
| 2008 | 2009 | 2010 | |
|---|---|---|---|
| asynchrony with caterpillar peak (days) | 8.28 ± 0.25 | 2.68 ± 0.24** | 5.28 ± 0.40** |
| rain days (%) | 40 | 62* | 50 |
| temperature (°C) | 17.39 ± 0.39* | 16.16 ± 0.42 | 16.42 ± 0.47 |
| adult CORT (ng ml−1) | 2.93 ± 0.25 | 3.14 ± 0.25 | 1.02 ± 0.15** |
| number fledged | 7.38 ± 0.34 | 7.16 ± 0.50** | 8.20 ± 0.46 |
| nestling mass (g) | 11.05 ± 0.10 | 11.34 ± 0.09 | 11.39 ± 0.12 |