Table 1 Cox proportional hazard model comparison by the Akaike’s information criterion (AIC).

From: Personality and morphological traits affect pigeon survival from raptor attacks

Model

Parameters

Log-likelihood

AIC

ΔAIC

ω

Full

Tarsus, Wing, Weight, Colour, Pectoral, FID, TI, ERT, FN

−23.98

65.97

2.96

0.19

Reduced

Tarsus, Colour, FID, TI, ERT, FN

–25.50

63.01

0

0.81

  1. The full model includes all predictors and the reduced model includes predictors selected from the full model by AIC-based backward stepwise elimination. Log-likelihood values, AIC, difference from lowest AIC score (ΔAIC) and Akaike weights (ω) are shown for each model. FID - flight initiation distance; TI - tonic immobility; ERT - escape reaction time; FN - feeder neophobia.
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