Parameter estimation for reaction‐diffusion models of biological invasions

Population Ecology - 2014
Samuel Soubeyrand1, Lionel Roques1
1INRA, UR546 Biostatistics and Spatial Processes, 84914 Avignon, France

Tóm tắt

AbstractIn this note, we discuss parameter estimation for population models based on partial differential equations (PDEs). Parametric estimation is first considered in the perspective of inverse problems (i.e., when the observation of the solution of a PDE is exactly observed or noise‐free). Then, adopting the point of view of statistics, we turn to parametric estimation for PDEs using more realistic noisy measurements. The approach that we describe uses mechanistic‐statistical models which combine (1) a PDE‐based submodel describing the dynamic under study and (2) a stochastic submodel describing the observation process. This Note is expected to contribute to bridge the gap between modelers using PDEs and population ecologists collecting and analyzing spatio‐temporal data.

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Population Ecology

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