Sequential boundary eigenvalue destabilisation (SeBEDes): An expert method for parameter screening and estimation in complex ecosystem models

We used the method to find an initial parameter set for which all populations coexisted. Only three model evaluations were required to find a parameter set that allowed coexistence. In contrast, a random search of parameter space required an average of 250 model evaluations to find each coexistence parameter set. The method is useful for identifying regions of parameter space that have high densities of coexistence solutions.