Table 3 Model selection summary of seven hierarchical linear regressions ranked by Akaike information criterion values corrected for small sample size (AICc) from the lowest to the highest value.

From: Extrinsic factors, endocrine mechanisms, and behavioral indicators of migratory restlessness in wintering whooper swans (Cygnus cygnus)

Model

k

logLik

AICc

∆AICc

wi

R2

HRsize ~ PC3

3

− 18.79

45.80

0.00

0.34

0.23

Null

2

− 20.77

46.50

0.78

0.23

–

HRsize ~ PC1 + PC3

4

− 17.72

47.40

1.68

0.15

0.33

HRsize ~ PC1

3

− 19.96

48.10

2.35

0.11

0.10

HRsize ~ PC2 + PC3

4

− 18.43

48.90

3.10

0.07

0.27

HRsize ~ PC2

3

− 20.49

49.20

3.41

0.06

0.04

HRsize ~ PC1 + PC2 + PC3

5

− 17.30

51.30

5.52

0.02

0.37

HRsize ~ PC1 + PC2

4

− 19.65

51.30

5.55

0.02

0.14

  1. Home range size (HRsize) of wintering whooper swans was used as the dependent variable, while the three behavioural PCs were used as predictors. K number of parameters included in the model, wi model weight, R2 regression coefficient.
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