Global attractivity of the predator–prey system for cotton aphid and seven-spot ladybird beetle with stage structure

2018 ◽  
Vol 11 (01) ◽  
pp. 1850012
Author(s):  
Lifei Zheng ◽  
Guixin Hu ◽  
Huiyan Zhao ◽  
M. K. D. K. Piyaratne ◽  
Aying Wan
Keyword(s):  
Population Dynamics ◽  
Numerical Simulations ◽  
Natural Enemies ◽  
Global Attractivity ◽  
Equilibrium Points ◽  
Stage Structure ◽  
Cotton Aphid ◽  
Ladybird Beetle ◽  
Predator Prey ◽  
Prey System

It is well known that the cotton aphid is the major pest in cotton fields of Northwest China, and seven-spot ladybird is an important natural enemy among the various possible natural enemies of cotton aphid. In order to increase the applications of population dynamics in integrated pest management and control the cotton aphids biologically, we need to understand the population dynamics of cotton aphid and their natural enemies. A delay predator–prey system on cotton aphid and seven-spot ladybird beetle are proposed in this paper. Based on the comparison theorem and an iterative method, we investigate the global attractivity of the equilibrium points which have important biological meanings. Furthermore, some numerical simulations were carried out to illustrate and expand our theoretical results, in which a conjecture to generalize the well-known Theorem 16.4 in H. R. Thiemes book was put forward, which was taken as the open problem. The numerical simulations show coexistence of periodic solution, confirming the theoretical prediction.

scholarly journals The Dynamics of an Impulsive Predator-Prey System with Stage Structure and Holling Type III Functional Response

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Zhixiang Ju ◽  
Yuanfu Shao ◽  
Xiaolan Xie ◽  
Xiangmin Ma ◽  
Xianjia Fang
Keyword(s):  
Functional Response ◽  
Global Attractivity ◽  
Stage Structure ◽  
Biological Resource ◽  
Predator Prey ◽  
Analysis Techniques ◽  
Type Iii ◽  
Predator Prey Model ◽  
Prey System ◽  
Impulsive Harvesting

Based on the biological resource management of natural resources, a stage-structured predator-prey model with Holling type III functional response, birth pulse, and impulsive harvesting at different moments is proposed in this paper. By applying comparison theorem and some analysis techniques, the global attractivity of predator-extinction periodic solution and the permanence of this system are studied. At last, examples and numerical simulations are given to verify the validity of the main results.

Predator–Prey System: Bachelor Herding of the Prey Imposes Ecological Constraints on Predation

2021 ◽  
Vol 31 (14) ◽  
Author(s):  
Rajat Kaushik ◽  
Sandip Banerjee
Keyword(s):  
Numerical Simulations ◽  
Equilibrium Points ◽  
Sufficient Conditions ◽  
Herd Behavior ◽  
Ecological Constraints ◽  
Predator Prey ◽  
Predator Prey Model ◽  
Schooling Behavior ◽  
Prey System ◽  
Parent Groups

Bachelor herd behavior is very common among juvenile animals who have not become sexually matured but have left their parent groups. The complex grouping or schooling behavior provides vulnerable juveniles refuge from predation and opportunities for foraging, especially when their parents are not within the area to protect them. In spite of this, juvenile/immature prey may easily become victims because of their greenness while on the other hand, adult prey may be invulnerable to attack due to their tricky manoeuvring abilities to escape from the predators. In this study, we propose a stage-structured predator–prey model, in which predators attack only the bachelor herds of juvenile prey while adult prey save themselves due to small predator–prey size ratio and their fleeing capability, enabling them to avoid confrontation with the predators. Local and global stability analysis on the equilibrium points of the model are performed. Sufficient conditions for uniform permanence and the impermanence are derived. The model exhibits both transcritical as well as Hopf bifurcations and the corresponding numerical simulations are carried out to support the analytical results. Bachelor herding of juvenile prey as well as inaccessibility of adult prey restricts the uncontrolled predation so that prey abundance and predation remain balanced. This investigation on bachelor group defence brings out some unpredictable results, especially close to the zero steady state. Altogether, bachelor herding of the juvenile prey, which causes unconventional behavior near the origin, plays a significant role in establishing uniform permanence conditions, also increases richness of the dynamics in numerical simulations using the bifurcation theory and thereby, shapes ecosystem properties tremendously and may have a large influence on the ecosystem functioning.

Data Processing for Dynamic Consequences of Prey Refuge in a Predator-Prey System with Stage Structure and Time Delay

2014 ◽  
Vol 978 ◽  
pp. 88-93
Author(s):  
Li Han
Keyword(s):  
Population Dynamics ◽  
Time Delay ◽  
Stage Structure ◽  
Equilibrium Density ◽  
Prey Refuge ◽  
Predator Prey ◽  
Data Process ◽  
Prey System ◽  
Stabilizing Effect ◽  
System With Time Delay

—In this paper, the effect of prey refuge on the dynamic consequences of the stage-structured predator-prey system with time delay are studied. The results indicate that the prey refuge play an important role in population dynamics, the extinction and coexistence of predator and prey population. The results show that the equilibrium density of immature and mature prey populations increase with increasing in prey refuge and the prey refuge has a clearly stabilizing effect on the predator-prey system with stage structure and time delay under a restricted set of conditions. The Data process is also analysized and obtained.

GLOBAL ATTRACTIVITY OF A STAGE-STRUCTURE VARIABLE COEFFICIENTS PREDATOR-PREY SYSTEM WITH TIME DELAY AND IMPULSIVE PERTURBATIONS ON PREDATORS

2008 ◽  
Vol 01 (02) ◽  
pp. 197-208 ◽  
Author(s):  
JIANJUN JIAO ◽  
LANSUN CHEN
Keyword(s):  
Global Attractivity ◽  
Discrete Dynamical System ◽  
Sufficient Conditions ◽  
Stage Structure ◽  
Variable Coefficients ◽  
Predator Prey ◽  
Prey System ◽  
All Solutions ◽  
Impulsive Perturbations ◽  
System With Time Delay

In this work, we consider a delayed stage-structured variable coefficients predator-prey system with impulsive perturbations on predators. By using the discrete dynamical system determined by stroboscopic map and the standard comparison theorem, we obtain the sufficient conditions which guarantee the global attractivity of prey-extinction periodic solution of the investigated system. We also prove that all solutions of the system are uniformly ultimately bounded. Our results provide reliable tactic basis for the practical pest management.

scholarly journals A Stochastic Predator-Prey System with Stage Structure for Predator

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Shufen Zhao ◽  
Minghui Song
Keyword(s):  
Global Existence ◽  
Global Stability ◽  
Numerical Simulations ◽  
Functional Response ◽  
Sufficient Conditions ◽  
Stage Structure ◽  
Predator Prey ◽  
Stability In Probability ◽  
Prey System ◽  
Theoretical Results

The authors introduce stochasticity into a predator-prey system with Beddington-DeAngelis functional response and stage structure for predator. We present the global existence and positivity of the solution and give sufficient conditions for the global stability in probability of the system. Numerical simulations are introduced to support the main theoretical results.

scholarly journals Asymptotic Behaviors of a Delayed Nonautonomous Predator-Prey System Governed by Difference Equations

2011 ◽  
Vol 2011 ◽  
pp. 1-15 ◽  
Author(s):  
Lili Liu ◽  
Zhijun Liu
Keyword(s):  
Numerical Simulations ◽  
Positive Solutions ◽  
Differential System ◽  
Difference Equations ◽  
Global Attractivity ◽  
Asymptotic Behaviors ◽  
Predator Prey ◽  
Prey System ◽  
Discretization Technique ◽  
Theoretical Results

Based on a predator-prey differential system with continuously distributed delays, we derive a corresponding difference version by using the method of a discretization technique. A good understanding of permanence of system and global attractivity of positive solutions of system is gained. An example and its numerical simulations are presented to substantiate our theoretical results.

scholarly journals On a Periodic Predator-Prey System with Holling III Functional Response and Stage Structure for Prey

2010 ◽  
Vol 2010 ◽  
pp. 1-12
Author(s):  
Xiangzeng Kong ◽  
Zhiqin Chen ◽  
Li Xu ◽  
Wensheng Yang
Keyword(s):  
Functional Response ◽  
Prey Species ◽  
Necessary Conditions ◽  
Stage Structure ◽  
Predator Prey ◽  
Prey System ◽  
Sufficient And Necessary Conditions ◽  
Holling Iii Functional Response

We propose and study the permanence of the following periodic Holling III predator-prey system with stage structure for prey and both two predators which consume immature prey. Sufficient and necessary conditions which guarantee the predator and the prey species to be permanent are obtained.

scholarly journals Permanence of Periodic Predator-Prey System with Functional Responses and Stage Structure for Prey

2008 ◽  
Vol 2008 ◽  
pp. 1-15 ◽  
Author(s):  
Can-Yun Huang ◽  
Min Zhao ◽  
Hai-Feng Huo
Keyword(s):  
Functional Response ◽  
Prey Species ◽  
Necessary Conditions ◽  
Stage Structure ◽  
Functional Responses ◽  
Predator Prey ◽  
Predator Prey Model ◽  
Prey System ◽  
Sufficient And Necessary Conditions ◽  
Holling Ii Functional Response

A stage-structured three-species predator-prey model with Beddington-DeAngelis and Holling II functional response is introduced. Based on the comparison theorem, sufficient and necessary conditions which guarantee the predator and the prey species to be permanent are obtained. An example is also presented to illustrate our main results.

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