How to assess numerically an invasion speed in a biological system using an individual-based model (IBM) of dispersal?

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Xiaodong Yan

Theoritically, I think IBM can not do that. because Invasion precess can be impacted by other species and envirromental condition(climate geography)

Fabien Campillo

Dear Nadja: for analysis did you check the papers of Méléard and collaborators about trait invasion, e.g. "Invasion and adaptive evolution for individual-based spatially structured populations" by Nicolas Champagnat, Sylvie Méléard. On the numerical point of view : if you have a few individual A among a lot B individual, to simulate the invasion of the A's among the B's you can hybridize : a PDE or integro-differential equations for the B's coupled with an IBM for the A's.