A dynamic and spatial model with migration generating the log-Gaussian field of population densities.
A spatial version of a dynamic population model leading to the lognormal distribution is defined. The model establishes relations between the joint spatial and temporal autocorrelation and biological concepts like environmental stochasticity, migration and strength of local density-regulation. The model is generalized to describe communities of species leading to a dynamic and spatial lognormal species abundance model with migration.
Engen
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Institute for Mathematical Sciences, Norwegian University of Science and Technology, Gløshaugen, N-7491 Trondheim, Norway. steinaen@math.ntnu.no
D000818:Animals; D003198:Computer Simulation; D004463:Ecology; D008954:Models, Biological; D011157:Population Dynamics