Si (ppm)

Intrinsic rate of natural increase

Net reproductive rate

Finite rate of increase

Doubling time

Mean generation time

0

0.252 ± 0.004

35.7 ± 0.01

1.30 ± 0.005

2.7 ± 0.04

14.6 ± 0.23

1

0.230 ± 0.004

36.2 ± 1

1.29 ± 0.007

2.8 ± 0.05

15 ± 0.16

1.5

0.232 ± 0.006

31.3 ± 0.5

1.28 ± 0.009

2.9 ± 0.08

15 ± 0.19

2

0.220 ± 0.003

27.6 ± 0.34

1.25 ± 0.004

3.1 ± 0.05

15.9 ± 0.26