Size-structured population dynamics
Boundary controllability of nonlinear size-structured population dynamics
... age, size, spatial location, life stage or other structuring of individuals have an extensive ...the size- structured models, Sinko and Streifer formulated the first one in ...a population ...
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OPTIMIZATION OF STATIONARY SOLUTION OF A MODEL OF SIZE-STRUCTURED POPULATION EXPLOITATION
... the size-structured population dynamics in the case where the growth rate, mortality, and exploitation in- tensity depend only on the size and certain conditions on the model parameters ...
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Numerical analysis of stability for a nonlinear size-structured population model with elastic growth
... of size- structured population dynamics [15], their efforts should be ...affinis population from a numerical point of view, obtained such long-run behaviors as periodic Oscillation ...
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Effective Size of a Fluctuating Age-Structured Population
... effective size of age-structured populations assumed a constant environment and, usually, a constant population size and age ...effective size of populations subject to fluctuations in ...
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Population and evolutionary dynamics in spatially structured seasonally varying environments
... sub-population size and composition, where pie and segment sizes respectively denote the total number of individuals, and the number of individuals expressing each strategy, that are present in the A, B, ...
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Analytic algorithms for Some Models of Nonlinear Age–Structured Population Dynamics and Epidemiology
... Age-Structured Population Models, Population Dynamics, SIS Epidemic Models, Adomian Decomposition Method, Homotopy Perturbation and Homotopy Analysis ...a structured population ...
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Size-Structured Population Model for Ocean Acidification Impacts Through Effects on Demographic Processes.
... Spacial distribution is neglected when forming the PSPM so that identical individuals de- velop in the same way. A more realistic model would allow coral colony demography to be dependent on an individual’s proximity to ...
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On the performance of four methods for the numerical solution of ecologically realistic size-structured population models
... Figure S3 illustrates how different values of 𝜏𝜏 affect mesh distribution. The temporal regulari- zation parameter 𝜏𝜏 influences how quickly the mesh responds to changes in the solution. The smaller the value of 𝜏𝜏, the ...
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The Dynamics of Transposable Elements in Structured Populations
... the dynamics of transposable elements (TEs) according to Wright’s island and continent- island models, assuming that selection tends to counter the deleterious effects of ...the population size, but ...
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The Evolution of Cooperation in a Lattice-Structured Population
... The numbers below shaded circles are the fractions of runs in which TFT become fixed. When w is less than about 0.8, AD is an evolutionarily stable strategy. When w is larger than about 0.4, TFT is an evolutionarily ...
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Joint Effects of Habitat Heterogeneity and Species Life- History Traits on Population Dynamics in Spatially Structured Landscapes
... driving population dynamics, yet there is little scientific consensus around the combined effect of these two factors on populations in complex ...affect population dynamics in spatially ...
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Continuous structured population models for Daphnia magna
... each size class as well as the total ...total population numbers at each day for each class and on the right is a surface representing dynamics of age, time, and population ...each size ...
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Propagation of growth uncertainty in a physiologically structured population
... tured population models are built on the assumption that individuals with the same structure level at same time have the same growth rates, and the only uncertainty enters the population is through the ...
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Sensitivity equations for a size-structured population model
... Sinko-Streifer size-structured population model and derive sensitivity partial differential equations for the sensitivities of solutions with respect to initial conditions, growth rate, mortality ...
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Effective Population Size and Population Subdivision in Demographically Structured Populations
... effective population size with discrete generations and separate sexes are derived for a variety of different modes of ...a population of partially self-fertilizing ...of population ...
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Coagulation, fragmentation and growth processes in a size structured population
... e-mail: [email protected] e-mail: [email protected] Abstract An equation describing the dynamical behaviour of phytoplankton cells is considered in which the effects of cell division and aggregration are ...
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An Explicit Third-Order Numerical Method For Size-Structured Population Equations
... Abstract A numerical method incorporating a combination of a difference scheme and several uniform and nonuniform quadrature rules is presented. The method is designed to solve size-structured ...
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Dynamics of a stage structured single population model with state dependent delay
... Before World War II, people discovered that juvenile seals needed five years to mature, small whales needed seven to ten years, and big whales needed 12 to 15 years. After the war, owing to the introduction of factory ...
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Uncertainty Quantification in the Estimation of Probability Distributions on Parameters in Size-Structured Population Models
... We demonstrated how to construct “functional” confidence bands for estimated probability distributions in size-structured mosquitofish populations in both parametric and non-parametric settings with several ...
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Dynamics of microbial population size in rhizosphere soil of Monsanto’s Cry1Ac cotton
... The dynamics of eubacterial, fungal and actinomycetes population sizes in rhizosphere soil of the Bt cotton were analysed by real- time PCR (qPCR) at the different growth stages under field conditions ...
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