Table 1 Models’ validation.

From: Climate-change-driven growth decline of European beech forests

 

AI

Cli

Geo

RE

AIC

∆AIC

Chisq

Df

Pr

Null model

642591.5

25404.4

NA

NA

NA

642509.6

25322.5

83.9

1

5.32E-20

642417.9

25230.8

95.8

2

1.61E-21

642348.3

25161.2

77.6

4

5.66E-16

624421.0

7233.9

17949

11

0

621819.4

4632.3

2639.6

19

0

618820.9

1633.9

3038.4

20

0

Full model

617187.1

0.0

1647.9

7

0

  1. Each row represents a single model and each colored column represents the inclusion of each group of predictor variables (red, moisture conditions (AI), blue, seasonal climatic temperature and precipitation variables (Cli), yellow, geographical variables (Geo) and green, random effects (RE)). For each model, Akaike Information Criterion value and difference (AIC, ∆AIC), χ2 test value and degrees of freedom (Df) of the χ2 test and p (Chisq, Pr > Chisq)) are shown.