Table 2. Sensitivity and elasticity of the population growth rate.

Demographic parameter	Notation	Value	s.e.	Sensitivity	Elasticity
Average fecundity	F	0.659	0.010	0.126	0.023
First-year survival	S0	0.520	0.062	0.159	0.029
Survival from age 1 to age 2	S1	0.868	0.013	0.048	0.044
Survival from age 2 to age 3	S2	0.868	0.013	0.048	0.044
Survival from age 3 to age 4	S3	0.868	0.013	0.048	0.044
Survival from age 4 to age 5	S4	0.868	0.013	0.047	0.039
Survival from age 5 to age 6	S5	0.868	0.013	0.044	0.031
Survival from age 6 to age 7	S6	0.868	0.013	0.191	0.130
Survival of breeding adults	SBr	0.868	0.013	0.499	0.378
Survival of non breeding adult	SNb	0.868	0.013	0.104	0.049
Recruitment probability at age 3	G3	0.004	0.001	0.111	0.038
Recruitment probability at age 4	G4	0.044	0.009	0.105	0.038
Recruitment probability at age 5	G5	0.126	0.015	0.091	0.036
Recruitment probability at age 6	G6	0.125	0.014	0.403	0.154
Probability to skip a reproduction	1−GBr	0.11	-	0.069	0.326
Probability to remain non-breeder	GNb	0.59	-	0.016	0.001

Sensitivity and elasticity of λ to the demographic parameters calculated from a model in the absence of rats and with the observed value of survival.