Table 4. Analysis of the influence of age at first reproduction, litter size (LS) and proportion of multiple paternities (MP) on female median lifespan and aging rate.

			Median lifespan					Aging rate
Independant variables	k	λ	R2	Deviance	AICc	ΔAICc	wi	λ	R2	Deviance	AICc	ΔAICc	wi
Constant	3	<0.001	0.00	24.82	27.15	0.00	0.51*	0.78	0.00	46.56	48.88	0.00	0.42
Age at first reproduction	4	<0.001	0.00	23.82	29.89	2.74	0.13	0.73	0.00	46.56	52.61	3.73	0.07
MP	4	<0.001	0.00	24.38	30.44	3.29	0.10	0.81	0.00	45.92	51.96	3.08	0.09
LS	4	<0.001	0.05	22.86	28.91	1.76	0.21	<0.001	0.22	43.34	49.39	0.51	0.33*
MP+LS	5	<0.001	0.00	22.84	33.17	6.02	0.02	<0.001	0.16	43.32	53.63	4.75	0.04
MP*LS	5	<0.001	0.00	22.52	37.75	10.60	0.00	<0.001	0.10	43.16	58.40	9.52	0.00
Age at first reproduction+MP	5	<0.001	0.00	22.88	33.21	6.06	0.02	<0.001	0.14	43.68	54.00	5.12	0.03
Age at first reproduction+MP+LS	6	<0.001	0.00	21.78	37.02	9.87	0.00	<0.001	0.24	40.34	55.58	6.70	0.01
Age at first reproduction+MP×LS	7	<0.001	0.00	21.20	42.19	15.04	0.00	<0.001	0.18	40.32	61.31	12.43	0.00

We compared models based on AICc and w_i (see Material and methods section). K represents the number of parameters in the model, R² corresponds to the adjusted R² and Δ AICc represents the difference of corrected Akaike’s with that of the best models (*).