Keyword: population

Found 27 papers in total
Global versus local search: the impact of population sizes on evolutionary algorithm performance
Global versus local search: the impact of population sizes on evolutionary algorithm performance
2016,
In the field of Evolutionary Computation, a common myth that ‘An Evolutionary...
The large-scale stocking of young anadromous whitefish (Coregonus lavaretus) and corresponding catches of returning spawners in the River Tornionjoki, northern Baltic Sea
The large-scale stocking of young anadromous whitefish (Coregonus lavaretus) and corresponding catches of returning spawners in the River Tornionjoki, northern Baltic Sea
2014,
Stocking and fishing effort are two important potentially conflicting factors in fish...
Conditions for Cooperation to be More Abundant than Defection in a Hierarchically Structured Population
Conditions for Cooperation to be More Abundant than Defection in a Hierarchically Structured Population
2015,
We study conditions for weak selection to favor tit‐for‐tat (TFT) over...
Qualitative analysis of a Hölling‐Tanner predator‐prey model with mutual interference
Qualitative analysis of a Hölling‐Tanner predator‐prey model with mutual interference
2013,
A reaction‐diffusion system arising from the Hölling–Tanner...
Improved estimation of population mean in simple random sampling using information on auxiliary attribute
Improved estimation of population mean in simple random sampling using information on auxiliary attribute
2012,
This paper addresses the problem of estimating the population mean with known...
Global stability of multigroup epidemic model with group mixing and nonlinear incidence rates
Global stability of multigroup epidemic model with group mixing and nonlinear incidence rates
2011,
In this paper, we introduce a basic reproduction number for a multigroup SEIR model...
Dispersal permanence of a periodic predator‐prey system with Holling type-IV functional response
Dispersal permanence of a periodic predator‐prey system with Holling type-IV functional response
2011,
In this paper, we study the permanence of a class of periodic predator–prey...
Uniform persistence for a discrete predator‐prey system with delays
Uniform persistence for a discrete predator‐prey system with delays
2011,
In this paper, we deal with a discrete predator–prey model with monotonic...
Permanence of an SIR epidemic model with density dependent birth rate and distributed time delay
Permanence of an SIR epidemic model with density dependent birth rate and distributed time delay
2011,
In this paper, we investigate the permanence of an SIR epidemic model with a...
Hopf bifurcation and Turing instability in spatial homogeneous and inhomogeneous predator‐prey models
Hopf bifurcation and Turing instability in spatial homogeneous and inhomogeneous predator‐prey models
2011,
This paper is concerned with two‐species spatial homogeneous and inhomogeneous...
Numerical integration of a hierarchically size-structured population model with contest competition
Numerical integration of a hierarchically size-structured population model with contest competition
2014,
We formulate schemes for the numerical solution to a hierarchically...
Positive periodic solutions for neutral delay ratio-dependent predator‐prey model with Holling type III functional response
Positive periodic solutions for neutral delay ratio-dependent predator‐prey model with Holling type III functional response
2011,
By using a continuation theorem based on coincidence degree theory, some new and...
Global stability of delay multigroup epidemic models with group mixing and nonlinear incidence rates
Global stability of delay multigroup epidemic models with group mixing and nonlinear incidence rates
2011,
In this paper, we present a new delay multigroup SEIR model with group mixing and...
Modeling spatial adaptation of populations by a time non-local convection cross-diffusion evolution problem
Modeling spatial adaptation of populations by a time non-local convection cross-diffusion evolution problem
2011,
In , Sighesada et al. presented a system of partial differential equations for...
Stable periodic traveling waves for a predator‐prey model with non-constant death rate and delay
Stable periodic traveling waves for a predator‐prey model with non-constant death rate and delay
2011,
In this paper we will consider a predator–prey model with a non‐constant...
Study of rank‐ and size‐frequency functions and their relations in a generalized Naranan framework
Study of rank‐ and size‐frequency functions and their relations in a generalized Naranan framework
2012,
The Naranan formalism supposes that the number of sources and the number of items in...
An almost periodic solution for an impulsive two‐species logarithmic population model with time‐varying delay
An almost periodic solution for an impulsive two‐species logarithmic population model with time‐varying delay
2012,
In this paper, the existence of an almost periodic solution for an impulsive...
Estimation Of Finite Population Mean Using Random Non–Response In Survey Sampling
Estimation Of Finite Population Mean Using Random Non–Response In Survey Sampling
2011,
This paper consider the problem of estimating the population mean under three...
Ratio Estimators in Simple Random Sampling Using Information on Auxiliary Attribute
Ratio Estimators in Simple Random Sampling Using Information on Auxiliary Attribute
2008,
Some ratio estimators for estimating the population mean of the variable under study,...
Stability of Variance Estimator of Modified Murthy Estimator
Stability of Variance Estimator of Modified Murthy Estimator
2007,
Stability of the estimator of sampling variance is very important in using the...
Optimal Population Path Fitting for Flawed Vital Statistics and Censuses
Optimal Population Path Fitting for Flawed Vital Statistics and Censuses
2011,
A problem, often encountered in the analysis of historical data, is the difficulty in...
Robust backward population projections made possible
Robust backward population projections made possible
2011,
Based on formal results for population dynamics under varying fertility and mortality...
On the coexistence of different religions
On the coexistence of different religions
1999,
A general model for pair formation in age, sex, and sociologically structured...
The adaptive dynamics of consumer choice
The adaptive dynamics of consumer choice
1999,
This article uses mathematical models to investigate the consequences of...
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