Table 1 Composition of the best models.

From: Long-term trends in the body condition of parents and offspring of Tengmalm’s owls under fluctuating food conditions and climate change

Model

AIC

Delta AIC

AIC weights wi

AIC odds

BIC

Delta BIC

BIC weights wi

BIC odds

Model (a)—dependent variable body condition index of offspring

Year, spring prey abundance, male BCI, female BCI, laying date, No. of hatchlings, precipitation (May–June)

17,201.78

0.00

0.87

1.00

17,209.60

0.00

0.87

1.00

Year, spring prey abundance, male age, female age, laying date, No. of hatchlings, precipitation (May–June)

17,205.64

3.86

0.13

6.89

17,213.45

3.85

0.13

6.87

Year, spring prey abundance, male BCI, female BCI, laying date, No. of hatchlings

17,215.27

13.49

0.00

849.32

17,223.09

13.49

0.00

849.32

Year, spring prey abundance, male age, female age, laying date, No. of hatchlings

17,222.40

20.62

0.00

30,133.07

17,230.22

20.62

0.00

30,051.44

Year, spring prey abundance, male age, female BCI, laying date, No. of hatchlings, precipitation (May–June)

17,284.65

82.87

0.00

9.9E+17

17,292.48

82.88

0.00

9.94E+17

Model (b)—dependent variable body condition index of male parents

Year, male age, spring prey abundance, snow cover (January–March)

6898.08

0.00

0.85

1.00

6910.33

0.00

0.85

1.00

Year, male age, autumn prey abundance, snow cover (January–March)

6902.18

4.10

0.11

7.79

6914.44

4.11

0.11

7.79

Year, male age, spring prey abundance

6904.46

6.38

0.04

24.34

6916.72

6.38

0.04

24.34

Year, male age, autumn prey abundance

6909.48

11.40

0.00

298.86

6921.73

11.40

0.00

298.86

Year, spring prey abundance, snow cover (January–March)

6947.28

49.20

0.00

4.8E+10

6959.53

49.20

0.00

4.82E+10

Model (c)—dependent variable body condition index of female parents

Year, female age, autumn prey abundance, snow cover (January–March)

9113.99

0.00

0.78

1.00

9122.21

0.00

0.78

1.00

Year, female age, spring prey abundance, snow cover (January–March)

9116.50

2.50

0.22

3.49

9124.71

2.50

0.22

3.49

Year, female age, autumn prey abundance

9169.77

55.78

0.00

1.3E+12

9177.99

55.78

0.00

1.29E+12

Year, female age, spring prey abundance

9174.43

60.44

0.00

1.3E+13

9182.65

60.44

0.00

1.33E+13

Year, autumn prey abundance, snow cover (January–March)

9269.43

155.44

0.00

5.7E+33

9277.66

155.44

0.00

5.68E+33

  1. Composition (applied fixed effects) of the five best fitting models sorted according to fitting statistics (the smaller the better), AIC, Δ AIC, and BIC, Δ BIC for all three modelled dependent variables (models a–c). The following fixed effects were log-transformed before the analyses: autumn and spring prey abundance, number of hatchlings and each weather variable.
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