The evolutionary limit for models of populations interacting competitively via several resourcesReport as inadecuate




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1 TOSCA INRIA Lorraine, CRISAM - Inria Sophia Antipolis - Méditerranée , UHP - Université Henri Poincaré - Nancy 1, Université Nancy 2, INPL - Institut National Polytechnique de Lorraine, CNRS - Centre National de la Recherche Scientifique : UMR7502 2 JAD - Laboratoire Jean Alexandre Dieudonné

Abstract : We consider a integro-differential nonlinear model that describes the evolution of a population structured by a quantitative trait. The interactions between traits occur from competition for resources whose concentrations depend on the current state of the population. Following the formalism of~\cite{DJMP}, we study a concentration phenomenon arising in the limit of strong selection and small mutations. We prove that the population density converges to a sum of Dirac masses characterized by the solution $\varphi$ of a Hamilton-Jacobi equation which depends on resource concentrations that we fully characterize in terms of the function $\varphi$.

Keywords : adaptive dynamics Hamilton-Jacobi equation with constraints Dirac concentration metastable equilibrium





Author: Nicolas Champagnat - Pierre-Emmanuel Jabin -

Source: https://hal.archives-ouvertes.fr/



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