population models
Numerical Method of a Class of Stochastic Delay Population Models
... Abstract: Our aim in this paper is to present the design and implementation of a new numerical method to solve a class of stochastic delay population models. Firstly, a stochastic predator-prey model with ...
9
Pair-edge Approximation for Heterogeneous Lattice Population Models
... Lattice models, a form of discrete stochastic spatial population models, have been popular among theoretical biologists because they provide a simple, flexible framework for modeling spatial dynamics ...
35
Continuous structured population models for Daphnia magna
... Structured population models (SPMs) track the density of a population of individuals over time with respect to a physiologically structured variable, such as age or ...
22
Integrating pest population models with biophysical crop models to better represent the farming system
... systems models and biotic constraint models, be they population type models or static models, has previously been a ...systems models like APSIM have used simple disease or weed ...
8
On analytical and numerical approaches to division and label structured population models
... Structured population models are commonly used to describe populations of individuals according to some continuously structured variable, such as age, size, levels of fluorescent label, or spatial location ...
8
A computational comparison of alternatives to including uncertainty in structured population models
... Such models are termed cryptodeterministic [16] and embody the fundamental feature that uncertainty or stochastic variability enters the population only through that in the initial ...mosquitofish ...
16
Periodic Dynamical Systems of Population Models.
... g, of f fixes zero which is a notably problematic assumption. We would also be forced to assume that g 0 (0) ≥ 1 to maintain the properties of a population model. Again, this is a closed property which is ...
104
Statistical validation of structured population models for Daphnia magna
... daphnid population data gave extremely poor results (data not ...structured models from field data of daphnid ...tured population models, and thus they remain largely untested and ...
28
Evidence for reduced magnetic braking in polars from binary population models
... decades, population models of non-magnetic CVs have been de- veloped, which substantially improved our understanding of non- magnetic CV evolution ...
16
Population level risk assessment: practical considerations for evaluation of population models from a risk assessor's perspective
... a population model include some degree of variability and uncer- tainty resulting from methodological constraints or lim- ited ...of population ecology [15-17], these factors are not commonly addressed ...
11
Positive periodic solutions of functional discrete systems and population models
... POSITIVE PERIODIC SOLUTIONS OF FUNCTIONAL DISCRETE SYSTEMS AND POPULATION MODELS YOUSSEF N RAFFOUL AND CHRISTOPHER C TISDELL Received 29 March 2004 and in revised form 23 August 2004 We apply a cone t[.] ...
12
A comparison of theoretical and empirical results for some stochastic population models
... In recent papers Bartlett (1957), Leslie (1958) and Leslie & Gower (1958) have illustrated by means of artificial series the properties of various idealized models of biological sys[r] ...
12
Application of the SBA Method to Solve the Nonlinear Biological Population Models
... The objective of this paper is to apply Some Blaise Abbo(SBA) method, which is an elegant combination of ADM [3], and Picard principle and successive approximations [5] to find the analy[r] ...
10
Analysis of Nonlinear Delay Systems with Applications in Bumblebee Population Models
... bumblebee models satisfy the conditions outlined in the theory first presented in ...ecological models requiring delays as well as to our subsequently developed bumblebee ...
18
Population Models of Genomic Imprinting. II. Maternal and Fertility Selection
... Under several hypotheses for the evolutionary origin of imprinting, genes with maternal and re- productive effects are more likely to be imprinted. We thus investigate the effect of genomic imprinting in single-locus ...
8
Pradel models: recruitment, survival and population growth rate
... a population. For those of you with any background in matrix population models, this is an old concept: you have a metric describing the growth of the population (λ), and you want to determine ...
25
Likelihoods and Simulation Methods for a Class of Nonneutral Population Genetics Models
... nonneutral models, for approximating the mutation and selection must be strong enough to ensure distribution of sample statistics, and for approximating that all four alleles are present in the sample at reason- ...
15
Population Genetics Models of Local Ancestry
... and West African populations prior to the advent of massive intercontinental travel. Many routines have been proposed to infer the source population along the genome of admixed individuals (Ungerer et al. 1998; ...
13
Superpopulation models in finite population sampling
... finite population sampling is fundamentally ...actual population with a finite number of ...the population by means of a randomization process which is known and is fully controlled by ...finite ...
143
Population genetic models of genomic imprinting.
... Several population genetic models are presented and the following conclusions drawn: (i) systems with genomic imprinting need not behave similarly to otherwise identical[r] ...
9