Size of the Wild Population
Estimate the size of the wild population, via the Lincoln Index.
sitobject or a
sit_adult_surveysobject (in which case,
Logical. Whether to aggregate data from released populations.
a character vector of species to be returned. Defaults to
NULL, which ignores the species variable.
This provides multiple estimates of the population size, one for each age $t$ and for each released population, which can be averaged to compute a final estimate based on all the available data.
The calculation needs to be split by released population. First, because survival rates could be different among populations, but also because the number $n_t$ of captured wild males at a given date can be compared against the number of captured sterile males $m_t$ at different ages.