Table 2 Likelihood-ratio tests between models with cohort- or age-dependent survival vs. constant survival in females. The number in brackets after model name is the model rank after model selection. P-values < 0.05 are in bold.

From: Sexual differences in age-dependent survival and life span of adults in a natural butterfly population

Reduced model

General model

χ2

df

p-value

φ(~1)p(~Cohort) (8)

φ(~Cohort)p(~Cohort) (1)

5.477

1

0.0193

φ(~1)p(~Time_lin) (5)

φ(~Cohort)p(~Time_lin) (2)

4.907

1

0.0268

φ(~1)p(~Cohort) (8)

φ(~Age_Gompertz)p(~Cohort) (3)

4.635

1

0.0313

φ(~1)p(~Time_lin) (5)

φ(~Age_Gompertz)p(~Time_lin) (6)

1.675

1

0.1955

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