 \(C_i\) denote the cost for funding
action \(i\), and let \(m\) denote the maximum expenditure (i.e. the
budget). Also, let \(F\) represent each feature (indexed by \(f\)),
\(W_f\) represent the weight for each feature \(f\) (defaults to one
for each feature unless specified otherwise), \(T_f\) represent the
persistence target for each feature \(f\), and \(E_f\) denote the
probability that each feature will go extinct given the funded
conservation projects.</p>
<p>To guide the prioritization, the conservat