Fig 1.
The extinction probability P and the critical fertility .
(A) P versus fertility b (), (B) P versus sex ratio r (
), (C) Optimal sex ratio r versus fertility b, and (D)
versus r for
and.
Fig 2.
The population with subcritical fertility goes extinct except for a few exceptions that keep growing.
(A, B) , (C, D)
. Among 100 independent replicates, only six runs in (A, B) and one run in (C, D) survive to grow. (
, 100 trajectories overlapped).
Fig 3.
The ratio of extinct populations is plotted against generation number.
(A) and 2.3, and (B)
and 0.5 for
. For a subcritical fertility (
), most populations do not survive a few generations. (
, 10,000 replications).
Fig 4.
The histogram of survived generations for the population with subcritical fertility.
(A) and (B)
(
10,000 replications).