نتایج جستجو برای: ratio dependent functional response model

تعداد نتایج: 4179560  

Journal: :I. J. Bifurcation and Chaos 2015
Hong-Bo Shi Shigui Ruan Ying Su Jia-Fang Zhang

This paper is devoted to the study of spatiotemporal dynamics of a diffusive Leslie–Gower predator–prey system with ratio-dependent Holling type III functional response under homogeneous Neumann boundary conditions. It is shown that the model exhibits spatial patterns via Turing (diffusion-driven) instability and temporal patterns via Hopf bifurcation. Moreover, the existence of spatiotemporal ...

2012
R. Kara

In this paper we study a food chain model with three trophic levels and Michaelis-Menten type ratio-dependent functional response. Distinctive feature of this model is the sensitive dependence of the dynamical behavior on the initial populations and parameters of the real world. The stability of the equilibrium points are also investigated. Keywords—Food chain, Ratio dependent models, Three lev...

2005
Donald L. DeAngelis J. Nathaniel Holland

Prey (N) dependence [g(N)], predator (P) dependence [g(P) or g(N,P)], and ratio dependence [f(P/N)] are often seen as contrasting forms of the predator’s functional response describing predator consumption rates on prey resources in predator–prey and parasitoid–host interactions. Analogously, prey-, predator-, and ratio-dependent functional responses are apparently alternative functional respon...

Journal: :Discrete and Continuous Dynamical Systems-series B 2021

In this paper, we study the global dynamics of a density-dependent predator-prey system with ratio-dependent functional response. The main features and challenges are that origin model is degenerate equilibrium higher order there multiple positive equilibria. Firstly, local qualitative behavior around explicitly described. Then, based on other equilibria, analysis c...

Ali-Mohammad alizadeh, fakhri Badaghabadi, hamidreza Moheimani, maryah Rajaei, mohammadali Zeyghami, mohsen Nayebpour, mona pourabouk, saeed saleki, samaneh Naeimipour, sepideh Shariatnezhad, vahid khori,

Introduction: Intranodal pathways of atrioventricular (AV) node play a vital role in the delay of conduction time in response to various atrial inputs. The present study was aimed to determine the frequency-dependent electrophysiological properties of concealed slow pathway according to a functional model of isolated rabbit atrioventricular node preparation after fast pathway ablation. Meth...

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