Abstract
We have recently investigated the evolution of linguistic diversity by means of a simple spatial model that considers selective geographic colonization, linguistic anomalous diffusion and mutation. In the model, regions of the lattice are characterized by the amount of resources available to populations which are going to colonize the region. In that approach, the resources were ascribed in a randomly and uncorrelated way. Here, we extend the previous model and introduce a degree of correlation for the resource landscape. A change of the qualitative scenario is observed for high correlation, where the increase of the linguistic diversity on area is faster than for low correlated landscapes. For low correlated landscapes, the dependence of diversity on area shows two scaling regimes, while we observe the rising of another scaling region for high correlated landscapes.
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