Density-dependent population dynamics and dispersal in heterogeneous metapopulations
نویسندگان
چکیده
منابع مشابه
Density-dependent diffusion and epidemics on heterogeneous metapopulations
Outline 1. The SIS-diffusion metapopulation model. 2. Combination of random movement of individuals and local transmission/recovery and demography. 3. Density-dependent diffusion (migration) rates. 4. The Disease-Free steady state. Connectivity matrix. 5. Rural vs Urban populations. 6. Stability analysis. Introduction ⋆ Epidemic models describe the spread of infectious diseases in space and tim...
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We have derived reaction-dispersal-aggregation equations from Markovian reaction-random walks with density-dependent jump rate or density-dependent dispersal kernels. From the corresponding diffusion limit we recover well-known reaction-diffusion-aggregation and reaction-diffusion-advection-aggregation equations. It is found that the ratio between the reaction and jump rates controls the onset ...
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The selection pressure experienced by organisms often varies across the species range. It is hence crucial to characterise the link between environmental spatial heterogeneity and the adaptive dynamics of species or populations. We address this issue by studying the phenotypic evolution of a spatial metapopulation using an adaptive dynamics approach. The singular strategy is found to be the mea...
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ژورنال
عنوان ژورنال: Journal of Animal Ecology
سال: 2010
ISSN: 0021-8790
DOI: 10.1111/j.1365-2656.2010.01768.x