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. 2018 Apr 25;13(4):e0195603. doi: 10.1371/journal.pone.0195603

Table 3. AIC table presenting comparative models for calving date of a semi-domesticated reindeer population in Kaamanen, North Finland, including different weather variables over different periods of the year.

Models Fixed covariates Calving date
Rank ♀ BCI Proportion of males Mean T° Precipitation Snow depth index AICc df AICc weights ΔAICc R2
April-May May April April
1 × × × × 13894.9 8 0.42 0.0 0.44
2 × × × × 13895.3 8 0.36 0.4 0.45
3 × × × × 13896.2 8 0.22 1.3 0.44

All linear mixed-effects models for calving date included female’s body condition index and proportion of males as fixed effects and female identity and year as random factors. The models presented in the table are the three competing models retained in explaining calving, i.e. with ΔAICc < 2 (see text for details).