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Table 1 First assay of sex-specific effects of inbreeding level on lifespan and ageing.

From: Sex differences in the genetic architecture of lifespan in a seed beetle: extreme inbreeding extends male lifespan

Source Statistic DF/Variance DFDen/Standard Error F-ratio/Z-value P-value
Lifespan     
Inbreeding 2 49.1 0.66 0.5190
Sex 1 44.6 180.78 < 0.0001
Inbreeding × Sex 2 44.6 7.42 0.0017
Density 1 42.8 5.6 0.0225
Line 0.4232 0.2487 1.7 0.0444
Baseline mortality (ln α)     
Inbreeding 2 49.6 0.05 0.9539
Sex 1 44.6 11.47 0.0015
Inbreeding × Sex 2 44.3 2.48 0.0953
Density 1 20.8 0.02 0.8939
Line 0.9632 0.9928 0.97 0.1660
Rate-of-senescence (β)     
Inbreeding 2 46.7 0.92 0.4041
Sex 1 42.7 143.37 < 0.0001
Inbreeding × Sex 2 42.6 6.36 0.0038
Density 1 49.1 3.00 0.0894
Baseline mortality (ln α) 1 48.7 332.25 < 0.0001
Late-life deceleration (s) 1 47.2 15.17 0.0003
Line 0.007980 0.004285 1.86 0.0313
Late-life deceleration (s)     
Inbreeding 2 46.5 2.75 0.0741
Sex 1 49.8 18.93 < 0.0001
Inbreeding × Sex 2 42.3 3.20 0.0506
Density 1 39.6 0.06 0.8141
Baseline mortality (lnα) 1 50.9 1.78 0.1877
Rate-of-senescence (β) 1 51 13.22 0.0006
Line 0.07719 0.04770 1.62 0.0528
  1. Data was analysed with a General Linear Mixed Model with a REML estimation procedure. Degrees of freedom (DF & DFDen), F-ratios and P-values are provided for fixed effects (Inbreeding, Sex, Inbreeding × Sex and Density); variance components, standard errors, Z-values and P-values are provided for the random factor (maternal line).