Levin 1969 dp/dt = c p (1-p) - e p where p = patch-occupancy; persistence requires c > e; Hanski 1999 spatially-realistic incidence-function model extends to real-landscape.
Levin 1969 dp/dt = c p (1-p) - e p where p = patch-occupancy; persistence requires c > e; Hanski 1999 spatially-realistic incidence-function model extends to real-landscape.