Assessing density-dependent establishment and dispersal: an example using caddisfly larvae
نویسندگان
چکیده
منابع مشابه
Evolutionarily Stable Density-Dependent Dispersal
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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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 question of how dispersal behavior is adaptive and how it responds to changes in selection pressure is more relevant than ever, as anthropogenic habitat alteration and climate change accelerate around the world. In metapopulation models where local populations are large, and thus local population size is measured in densities, density-dependent dispersal is expected to evolve to a single-th...
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ژورنال
عنوان ژورنال: Canadian Journal of Fisheries and Aquatic Sciences
سال: 2000
ISSN: 1205-7533,0706-652X
DOI: 10.1139/cjfas-57-6-1190