Table 1.
Annual mean population laying dates (1955–2006) in relation to ambient temperature and sunspot numbers for two species (the great tit and the blue tit) in five Dutch populations (HV, VL, OH, LB and WB).
| variable | F-value | p-value | level | estimate (s.e.) |
|---|---|---|---|---|
| sunspots | F1,48.7 = 4.57 | 0.038 | 1.731 (0.780) | |
| sunspots * year | F1,48.6 = 4.63 | 0.036 | −0.00088 (0.00039) | |
| corrected for | ||||
| year | F1,48.7 = 0.17 | 0.682 | ||
| species * year | F1,51.6 = 18.51 | <0.001 | GT | 0.048 (0.039) |
| BT | −0.016 (0.015) | |||
| temperature | F1,47 = 93.91 | <0.001 | ||
| population * temperature | F4,12 = 4.41 | 0.020 | HV | −3.087 (0.356) |
| VL | −2.234 (0.361) | |||
| LB | −3.236 (0.361) | |||
| OH | −3.545 (0.363) | |||
| WB | −2.913 (0.393) | |||
| species * temperature | F1,42.3 = 8.37 | 0.006 | GT | −2.913 (0.393) |
| BT | −2.415 (0.171) |