Table 3.

Mortality models based on the experimental data (λ: initial mortality, γ: rate of exponential mortality increase, s: mortality deceleration)

	Treatment	Model	λ • 10−3	Γ	s
1. Experiment	Single Cohort	Logistic	5.3	0.076	0.38
	Dual Cohort	Gompertz	10.8	0.052	N/A
	Control	Gompertz	8.4	0.083	N/A
	Dual Cohort old	Gompertz	8.0	0.069	N/A
2. Experiment	Single Cohort	Gompertz	9.3	0.058	N/A
	Dual Cohort	Logistic	0.0	1.42	7.39
	Control	Gompertz	13.1	0.055	N/A
	Dual Cohort old	Logistic	0.5	0.247	2.17
3. Experiment	Single Cohort	Gompertz	6.9	0.066	N/A
	Dual Cohort	Gompertz	5.5	0.079	N/A
	Control	Logistic	5.6	0.108	0.86
	Dual Cohort old	Logistic	0.3	0.202	1.82
4. Experiment	Single Cohort	Logistic	1.8	0.228	2.08
	Dual Cohort	Logistic	1.5	0.199	1.85
	Control	Logistic	3.7	0.108	0.32