oneDay_pupation_stochastic_Patch.RdPupa first undergo one extra day of survival, calculated as a binomial over
$$\overline{P_{[t-1]}} * (1-\mu_{ad})$$.
This is an artifact of the conversion from continuous to discrete time (as mentioned
in the original Hancock paper this model is derived from).
Then, pupation is sampled from a binomial, where \((1-\overline{\phi})\) is
the genotype-specific probability of becoming male, and \(\overline{\phi}\)
is the genotype-specific of becoming female.
oneDay_pupation_stochastic_Patch()