CHASE: a model of human migration under environmental changes

This presentation focuses on migration of the most influential mammal species: humans! For humans, migration is one of the most drastic adaptation strategies against unfavorable conditions. This model is named after the factors it includes to capture migration probability by humans, namely CH = Changing mindset, A = Agglomeration, S = Social ties, and E = the Environment. Because many of these factors are not typically included in migration models of other non-human species, the CHASE model has the potential to give rise to different dynamics and patterns, which may in turn be useful for understanding and modeling migration of other species. Here we performed numerical experiments on the model by subjecting the human agents in the model to two different kinds of disturbances: sudden shocks and gradual changes. Preliminary results on the dynamics and patterns will be reported, compared, and discussed. Discussion with other presenters and comparison to other presentations in this session should lead to new ideas useful for modeling migration of humans and other species alike.