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This paper presents a study of the two-predators-two-preys discrete-time Lotka-Volterra model with self- inhibition terms for preys with direct applications to ecological problems. Parameters in the model are modified so that each of them…

动力系统 · 数学 2012-11-27 Hanbaek Lyu , Piotr Grzegorz Jablonski

We study the influence of spatially varying reaction rates on a spatial stochastic two-species Lotka-Volterra lattice model for predator-prey interactions using two-dimensional Monte Carlo simulations. The effects of this quenched…

统计力学 · 物理学 2008-12-18 Ulrich Dobramysl , Uwe C. Tauber

This work investigated the stability and asymptotic behavior of some Lotka Volterra type models. We used the Liapunov method which consists in analyzing the stability of systems of ordinary differential equations (ODEs) around the…

Non-autonomous differential equations exhibit a highly intricate dynamics, and various concepts have been introduced to describe their qualitative behavior. In general, it is rare to obtain time dependent invariant compact attracting sets…

动力系统 · 数学 2024-02-09 Juan Garcia-Fuentes , José A. Langa , Piotr Kalita , Antonio Suárez

Field theory tools are applied to analytically study fluctuation and correlation effects in spatially extended stochastic predator-prey systems. In the mean-field rate equation approximation, the classic Lotka-Volterra model is…

统计力学 · 物理学 2012-09-21 Uwe C. Tauber

We study distributed lag effects in three-dimensional Lotka-Volterra systems by applying the concept of fractional calculus. We derive a new numerical method that provides enhanced stability for the Caputo-Fabrizio operator based on…

数值分析 · 数学 2024-07-25 Leila Eftekhari , Moein Khalighi , Soleiman Hosseinpour , Leo Lahti

Nonlinear mathematical models introduce the relation between various physical and biological interactions present in nature. One of the most famous models is the Lotka-Volterra model which defined the interaction between predator and prey…

动力系统 · 数学 2024-12-25 Aneesh Panchal , Kirti Beniwal , Vivek Kumar

In this paper we consider a model of a nutrient-prey-predator system in a chemostat with general functional responses, using the input concentration of nutrient as the bifurcation parameter. We study the changes in the existence of isolated…

动力系统 · 数学 2019-11-20 Mary Ballyk , Ibrahim Jawarneh , Ross Staffeldt

The linear instability of Lotka-Volterra orbits in the homogenous manifold of a two-patch system is analyzed. The origin of these orbits instability in the absence of prey migration is revealed to be the dependence of the angular velocity…

种群与进化 · 定量生物学 2009-11-13 Refael Abta , Nadav M. Shnerb

In this paper, we consider the inverse problem of determining the coefficients of interaction terms within some Lotka-Volterra models, with support from boundary observation of its non-negative solutions. In the physical background, the…

偏微分方程分析 · 数学 2024-04-23 Yuhan Li , Hongyu Liu , Catharine W. K. Lo

In this paper, we study the Lotka-Volterra prey-predator models consisting of two species on finite connected graphs under Neumann condition and the condition that there is no boundary condition. We establish the global stability of the…

偏微分方程分析 · 数学 2022-12-15 Yuanyang Hu , Chengxia Lei

We present new a stability result for periodic solutions of the periodic predator prey Lotka Volterra model, based on boundaries for the average of the coexistence states. Our result complements previous one in the literature.

动力系统 · 数学 2025-08-08 Paulo Santana

Urban ecosystems exhibit complex predator-prey dynamics increasingly disrupted by anthropogenic disturbances (e.g., noise, habitat fragmentation). Classical Lotka-Volterra (LV) models fail to capture these human-induced stressors, and…

Dynamical properties of numerically approximated discrete systems may become inconsistent with those of the corresponding continuous-time system. We present a qualitative analysis of the dynamical properties of two species Lotka-Volterra…

In contrast to the neutral population cycles of the deterministic mean-field Lotka--Volterra rate equations, including spatial structure and stochastic noise in models for predator-prey interactions yields complex spatio-temporal structures…

种群与进化 · 定量生物学 2013-10-16 Ulrich Dobramysl , Uwe C. Tauber

We study the stochastic spatial Lotka-Volterra (LV) model for predator-prey interaction subject to a periodically varying carrying capacity. The LV model with on-site lattice occupation restrictions that represent finite food resources for…

种群与进化 · 定量生物学 2023-07-07 Mohamed Swailem , Uwe C. Täuber

We employ Monte Carlo simulations to study a stochastic Lotka-Volterra model on a two-dimensional square lattice with periodic boundary conditions. If the (local) prey carrying capacity is finite, there exists an extinction threshold for…

种群与进化 · 定量生物学 2016-04-20 Sheng Chen , Uwe C. Täuber

The Lotka-Volterra model is a paradigm for self-organized predator-prey oscillations in far-from-equilibrium systems, yet testing it in real-world ecosystems is hindered by uncontrollable microscopic parameters. Here, we propose a quantum…

量子物理 · 物理学 2025-10-31 Ya-Xin Xiang , Zhengyang Bai , Yu-Qiang Ma

In the paper we consider a system of differential equations with two delays describing plankton--fish interaction. We study stability of the equilibrium point corresponding to the presence of phytoplankton and zooplankton in the system and…

动力系统 · 数学 2023-12-20 M. A. Skvortsova

In this paper, a stage structured predator-prey model with general nonlinear type of functional response is established and analyzed. The state-dependent time delay (hereafter SDTD) is the time taken from predator's birth to its maturity,…

动力系统 · 数学 2021-06-18 Qianqian Zhang , Yuan Yuan , Yunfei Lv , Shengqiang Liu