Table 2 Factors that might influence the nestling’s body mass in the Grey-backed Shrike
From: The Grey-backed Shrike parents adopt brood survival strategy in both the egg and nestling phases
Generalized linear mixed model parameters | ||||
|---|---|---|---|---|
Fixed effects | β ± SE | n | t | P |
Intercept | 1.620 ± 1.086 | 284 | 1.492 | 0.065 |
Clutch initiation date | 0.042 ± 0.048 | 284 | 0.870 | 0.284 |
Hatching sequence | – 0.186 ± 0.164 | 284 | – 1.134 | 0.101 |
Nestling age | 2.264 ± 0.054 | 284 | 42.234 |  < 0.001 |
Random effects | β ± SD | n | Results of VCA (%) |
|---|---|---|---|
Nestling identity | 0.001 ± 0.001 | 284 | 0.006 |
Nest identity | 3.694 ± 1.922 | 284 | 21.25 |
Year | 3.032 ± 1.741 | 284 | 17.44 |
Residual | 10.659 ± 3.265 | 284 | 61.31 |