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Table 3 Factors that might influence the provisioning rate of males and females in the Grey-backed Shrike

From: The Grey-backed Shrike parents adopt brood survival strategy in both the egg and nestling phases

Parameters

Males

Females

Fixed effects

β ± SE

t

n

P

β ± SE

t

n

P

Intercept

2.38 ± 5.55

0.43

143

0.67

– 8.55 ± 7.55

– 1.13

143

0.26

Brood size

1.10 ± 0.80

1.38

143

0.17

3.20 ± 1.05

3.04

143

0.003

Nestling age

0.33 ± 0.10

3.15

143

0.002

0.81 ± 0.17

4.70

143

 < 0.001

Random effects

β ± SD

Results of VCA (%)

β ± SD

Results of VCA (%)

Year

0.001 ± 0.001

0.001

6.40 ± 2.53

11.39

Nest identity

0.02 ± 0.15

0.07

0.001 ± 0.001

0.001

Residual

30.16 ± 5.49

99.92

49.75 ± 7.05

88.61