Density-dependent dispersal and relative dispersal affect the stability of predator–prey metacommunities
نویسندگان
چکیده
منابع مشابه
The stability of Lotka-Volterra metacommunities on random dispersal networks∗
We study the comparative linear stability of Lotka-Volterra metacommunities in cases where dispersal coefficients between individual communities within the larger metacommunity are either uniformly or normally distributed. We also vary the mean interaction strength between species within a community. In the case of uniform dispersal coefficients, stability (as quantified by the leading eigenval...
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Dispersal and the underlying movement behaviour are processes of pivotal importance for understanding and predicting metapopulation and metacommunity dynamics. Generally, dispersal decisions are condition-dependent and rely on information in the broad sense, like the presence of conspecifics. However, studies on metacommunities that include interspecific interactions generally disregard conditi...
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An ab-initio numerical study of the density-dependent, evolutionary stable dispersal strategy is presented. The simulations are based on a simple discretei generation island model with four processes: reproduction, dispersal, competition and local catastrophe. We do not impose any a priori constraints on the dispersal schedule, allowing the entire schedule to evolve. We find that the system con...
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Dispersal, and the underlying movement behaviour, are processes of pivotal importance for understanding and predicting metapopulation and metacommunity dynamics. Generally, dispersal decisions are non-random and rely on information, such as the presence of conspecifics. However, studies on metacommunities that include interspecific interactions generally disregard information use. Therefore, it...
متن کاملDensity-dependent dispersal and population aggregation patterns.
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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ژورنال
عنوان ژورنال: Journal of Theoretical Biology
سال: 2010
ISSN: 0022-5193
DOI: 10.1016/j.jtbi.2010.07.008