Population growth rate
We applied the non-parametric skygrowth method (Volz & Didelot
2018) to examine if the FIVPco population growth rate
fluctuated across time and if this was related to changes in male or
female population size in the treatment region. We did not do the same
for the stable region as similar estimates were not available. We fitted
these models using MCMC (100,000 iterations) assuming that
FIVPco population size fluctuated every 6 months over a
14-year period (the estimated time to most recent common ancestor of
this clade, Fig. S7). Otherwise, the default settings were used. We then
performed a Pearson correlation test to assess if the trend in
FIVPco population growth was related to male and female
population size estimates (Logan & Runge 2020a). Measuring the
correlation between population size estimates and patterns of population
growth using generalized linear models (Gill et al. 2016; Volz &
Didelot 2018) was not feasible due to the relatively small size of this
dataset.