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We investigate a diffusive predator-prey model by incorporating the fear effect into prey population, since the fear of predators could visibly reduce the reproduction of prey. By introducing the mature delay as bifurcation parameter, we…

动力系统 · 数学 2019-05-01 Daifeng Duan , Ben Niu , Junjie Wei

In this paper, the dynamics of a modified Leslie-Gower predator-prey system with two delays and diffusion is considered. By calculating stability switching curves, the stability of positive equilibrium and the existence of Hopf bifurcation…

动力系统 · 数学 2019-01-30 Yanfei Du , Ben Niu , Junjie Wei

Competition of spatial and temporal instabilities under time delay near the codimension-two Turing-Hopf bifurcations is studied in a reaction-diffusion equation. The time delay changes remarkably the oscillation frequency, the intrinsic…

斑图形成与孤子 · 物理学 2015-05-30 Huijuan Wang , Zhi Ren

The spatiotemporal patterns of a reaction diffusion mussel-algae system with a delay subject to Neumann boundary conditions is considered. The paper is a continuation of our previous studies on delay-diffusion mussel-algae model. The global…

动力系统 · 数学 2018-07-26 Zuolin Shen , Junjie Wei

In this paper, by incorporating the general delay to the reaction term in the memory-based diffusive system, we propose a diffusive system with memory delay and general delay (e.g., digestion, gestation, hunting, migration and maturation…

偏微分方程分析 · 数学 2022-03-22 Yehu Lv

In this paper, we investigate the global boundedness, asymptotic stability and pattern formation of predator-prey systems with density-dependent preytaxis in a two-dimensional bounded domain with Neumann boundary conditions, where the…

偏微分方程分析 · 数学 2019-07-05 Hai-Yang Jin , Zhi-An Wang

This paper investigates the dynamical behaviors of a Holling type I Leslie-Gower predator-prey model where the predator exhibits an Allee effect and is subjected to constant harvesting. The model demonstrates three types of equilibrium…

动力系统 · 数学 2025-04-02 Jianhang Xie , Changrong Zhu

In this paper, we study the Rosenzweig-MacArthur predator-prey model with predator-taxis and time delay defined on a disk. Theoretically, we studied the equivariant Hopf bifurcation around the positive constant steady-state solution.…

动力系统 · 数学 2024-02-20 Yaqi Chen , Xianyi Zeng , Ben Niu

The existence and uniqueness of a global positive solution is proven for the system of stochastic differential equations describing a nonautonomous stochastic density dependent predator-prey model with Holling-type II functional response…

概率论 · 数学 2022-08-11 Olga Borysenko , Oleksandr Borysenko

In this paper, we investigate the asymptotic dynamics of Fisher-KPP equations with nonlocal dispersal operator and nonlocal reaction term in time periodic and space heterogeneous media. We first show the global existence and boundedness of…

偏微分方程分析 · 数学 2018-08-23 Jianping Gao , Shangjiang Guo , Wenxian Shen

We employ partial integro-differential equations to model trophic interaction in a spatially extended heterogeneous environment. Compared to classical reaction-diffusion models, this framework allows us to more realistically describe the…

种群与进化 · 定量生物学 2019-03-06 Jozsef Z. Farkas , Andrew Yu Morozov , E. G. Arashkevich , A. Nikishina

In this paper, we consider a general reaction-diffusion system with nonlocal effects and Neumann boundary conditions, where a spatial average kernel is chosen to be the nonlocal kernel. By virtue of the center manifold reduction technique…

动力系统 · 数学 2020-02-25 Zuolin Shen , Shanshan Chen , Junjie Wei

Differential diffusion is a source of instability in population dynamics systems when species diffuse with different rates. Predator-prey systems show this instability only under certain specific conditions, usually requiring Holling-type…

种群与进化 · 定量生物学 2020-01-01 Luciano Stucchi , Javier Galeano , Desiderio A. Vasquez

For delayed reaction-diffusion Schnakenberg systems with Neumann boundary conditions, critical conditions for Turing instability are derived, which are necessary and sufficient. And existence conditions for Turing, Hopf and Turing-Hopf…

动力系统 · 数学 2020-01-08 Weihua Jiang , Hongbin Wang , Xun Cao

This paper deals with the existence, multiplicity, minimal complexity and global structure of the subharmonic solutions to a class of planar Hamiltonian systems with periodic coefficients, being the classical predator-prey model of V.…

种群与进化 · 定量生物学 2022-12-23 Julián López-Gómez , Eduardo Muñoz-Hernández , Fabio Zanolin

Phenotypic plasticity is a key factor in driving the evolution of species in the predator-prey interaction. The natural environment is replete with phenotypic plasticity, which is the source of inducible defences against predators,…

种群与进化 · 定量生物学 2024-11-19 Sangeeta Saha , Swadesh Pal , Roderick Melnik

We consider an ecological model consisting of two species of predators competing for their common prey with explicit interference competition. With a proper rescaling, the model is portrayed as a singularly perturbed system with one-fast…

动力系统 · 数学 2022-09-23 Susmita Sadhu

This paper analyzes the generalized spatially heterogeneous diffusive predator-prey model introduced by the authors in \cite{LGMH20}, whose interaction terms depend on a saturation coefficient $m(x)\gneq0$. As the amplitude of the…

偏微分方程分析 · 数学 2023-02-21 Julián López-Gómez , Eduardo Muñoz-Hernández

Mutual interference and prey refuge are important drivers of predator-prey dynamics. The "exponent" or degree of mutual interference has been under much debate in theoretical ecology. In the present work, we investigate the interplay of the…

动力系统 · 数学 2021-09-13 Kwadwo Antwi-Fordjour , Rana D. Parshad , Matthew A. Beauregard

The aim of this work is to study the effect of diffusion on the stability of the equilibria in a general two-components reaction-diffusion system with Neumann boundary conditions in the space of continuous functions. As by product, we…

偏微分方程分析 · 数学 2023-12-19 Francisco J. Vielma-Leal , Miguel A. D. R. Palma , Miguel Montenegro-Concha