Results 11 to 20 of about 1,808 (165)

Stability and bifurcations of a discrete-time prey-predator system with constant prey refuge

open access: yesJournal of Physics: Conference Series, 2021
In ecology, by refuge an organism attains protection from predation by hiding in an area where it is unreachable or cannot simply be found. In population dynamics, once refuges are available, both prey-predator populations are expressively greater and ...
A. George Maria Selvam   +3 more
semanticscholar   +1 more source

Bifurcation and chaos in a discrete predator-prey system of Leslie type with Michaelis-Menten prey harvesting

open access: yesOpen Mathematics, 2022
In this paper, a discrete Leslie-Gower predator-prey system with Michaelis-Menten type harvesting is studied. Conditions on the existence and stability of fixed points are obtained.
Chen Jialin   +3 more
doaj   +1 more source

Complex dynamics of a four-species food-web model: An analysis through Beddington-DeAngelis functional response in the presence of additional food

open access: yesComputational and Mathematical Biophysics, 2023
The four-dimensional food-web system consisting of two prey species for a generalist middle predator and a top predator is proposed and investigated. The middle predator is predating over both the prey species with a modified Holling type-II functional ...
Rani Surbhi   +2 more
doaj   +1 more source

Global bifurcation of coexistence states for a prey-predator model with prey-taxis/predator-taxis

open access: yesAdvanced Nonlinear Studies, 2023
This article is concerned with the stationary problem for a prey-predator model with prey-taxis/predator-taxis under homogeneous Dirichlet boundary conditions, where the interaction is governed by a Beddington-DeAngelis functional response.
Li Shanbing, Wu Jianhua
doaj   +1 more source

Sharp profiles for diffusive logistic equation with spatial heterogeneity

open access: yesAdvanced Nonlinear Studies, 2023
In this article, we study the sharp profiles of positive solutions to the diffusive logistic equation. By employing parameters and analyzing the corresponding perturbation equations, we find the effects of boundary and spatial heterogeneity on the ...
Xing Yan-Hua, Sun Jian-Wen
doaj   +1 more source

An eco-epidemiological model with predator switching behavior

open access: yesComputational and Mathematical Biophysics, 2023
Switching mechanism is adopted by predator populations when they are provided with two types of prey: susceptible and infected. In this study, we propose a modification of an eco-epidemiological model with the predator switching mechanism.
Tripathi Deepak, Singh Anuraj
doaj   +1 more source

Port-Hamiltonian model of two-dimensional shallow water equations in moving containers

open access: yesIMA Journal of Mathematical Control and Information, 2020
The free surface motion in moving containers is an important physical phenomenon for many engineering applications. One way to model the free surface motion is by employing shallow water equations (SWEs).
F. Cardoso-Ribeiro   +2 more
semanticscholar   +1 more source

Impact of fear in a prey-predator system with herd behaviour

open access: yesComputational and Mathematical Biophysics, 2021
Fear of predation plays an important role in the growth of a prey species in a prey-predator system. In this work, a two-species model is formulated where the prey species move in a herd to protect themselves and so it acts as a defense strategy.
Saha Sangeeta, Samanta Guruprasad
doaj   +1 more source

On the Calibration of a Size-Structured Population Model from Experimental Data [PDF]

open access: yes, 2009
The aim of this work is twofold. First, we survey the techniques developed in (Perthame, Zubelli, 2007) and (Doumic, Perthame, Zubelli, 2008) to reconstruct the division (birth) rate from the cell volume distribution data in certain structured population
AL Koch   +13 more
core   +5 more sources

A robust study of the transmission dynamics of zoonotic infection through non-integer derivative

open access: yesDemonstratio Mathematica, 2022
In Sub-Saharan Africa, zoonotic diseases are the leading cause of sickness and mortality, yet preventing their spread has long been difficult. Vaccination initiatives have significantly reduced the frequency of zoonotic diseases mostly in African regions.
Jan Rashid   +4 more
doaj   +1 more source

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