Results 91 to 100 of about 1,843 (161)

The Influence of Generalist Predator and Michaelis–Menten Harvesting in a Holling–Tanner Model

open access: yesAxioms
In this paper, a Holling–Tanner predator–prey model with generalist predators and Michaelis–Menten-type prey harvesting is investigated. We analyze the existence and stability of equilibria and find the system has at most three positive equilibria.
Tanglei Huang, Huiling Wu, Zhong Li
doaj   +1 more source

Bogdanov-Takens Bifurcation of a Delayed Ratio-Dependent Holling-Tanner Predator Prey System

open access: yesAbstract and Applied Analysis, 2013
A delayed predator prey system with refuge and constant rate harvesting is discussed by applying the normal form theory of retarded functional differential equations introduced by Faria and Magalhães.
Xia Liu, Yanwei Liu, Jinling Wang
doaj   +1 more source

Degenerated Bogdanov-Takens bifurcations in an immuno-tumor model

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2009
A mathematical immuno-tumor model proposed by A. Kavaliauskas [Nonlinear Anal. Model. Control 8, 55 (2003)] and consisting of a Cauchy problem for a system of two first-order ordinary differential equations is studied.
Mariana P. Trifan, Adelina Georgescu
doaj   +1 more source

Dynamics of a state-dependent delay-differential equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations
We present a detailed study of a scalar differential equation with threshold state-dependent delayed feedback. This equation arises as a simplification of a gene regulatory model.
Tomas Gedeon   +4 more
doaj   +1 more source

Bifurcation analysis of a Leslie-type predator–prey system with prey harvesting and group defense

open access: yesFrontiers in Physics
In this paper, we investigate a Leslie-type predator–prey model that incorporates prey harvesting and group defense, leading to a modified functional response.
Yongxin Zhang, Jianfeng Luo
doaj   +1 more source

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