Results 11 to 20 of about 126,952 (298)

Quasicycles in a spatial predator-prey model [PDF]

open access: yesPhysical Review E, 2008
We show that spatial models of simple predator-prey interactions predict that predator and prey numbers oscillate in time and space. These oscillations are not seen in the deterministic versions of the models, but are due to stochastic fluctuations about the time-independent solutions of the deterministic equations which are amplified due to the ...
Lugo, Carlos A., McKane, Alan J.
openaire   +5 more sources

Change in prey genotype frequency rescues predator from extinction

open access: yesRoyal Society Open Science, 2022
Indirect evolutionary rescue (IER) is a mechanism where a non-evolving species is saved from extinction in an otherwise lethal environment by evolution in an interacting species.
Ruben Joseph Hermann, Lutz Becks
doaj   +1 more source

Impulsive predator-prey model [PDF]

open access: yesITM Web of Conferences, 2015
In this paper we considered a predator-prey model with state-dependent impulse. We determine periodic solutions for the model without impulses and we prove the existence of nontrivial periodic solution in the case of impulse depending on the state of the model.
Charif Fayssal   +2 more
openaire   +2 more sources

Geometric factors influencing the diet of vertebrate predators in marine and terrestrial environments [PDF]

open access: yes, 2014
Predator–prey relationships are vital to ecosystem function and there is a need for greater predictive understanding of these interactions. We develop a geometric foraging model predicting minimum prey size scaling in marine and terrestrial vertebrate ...
Bielby, Jon   +5 more
core   +1 more source

Multiple positive periodic solutions of a Gause-type predator-prey model with Allee effect and functional responses

open access: yesAIMS Mathematics, 2020
This paper deals with a Gause-type predator-prey model with Allee effect and Holling type III functional response. We also consider the influence of predator competition and the artificial harvesting on predator-prey system.
Shanshan Yu, Jiang Liu, Xiaojie Lin
doaj   +1 more source

IMPACT OF FEAR BEHAVIOR ON PREY POPULATION GROWTH PREY-PREDATOR INTERACTION

open access: yesBarekeng, 2022
Experiments on the living environment of vertebrate ecosystems, it has been shown that predators have a massive influence on the demographic growth rate of prey.
Rian Ade Pratama
doaj   +1 more source

Tearing Out the Income Tax by the (Grass)Roots [PDF]

open access: yes, 2011
Landscapes are increasingly fragmented, and conservation programs have started to look at network approaches for maintaining populations at a larger scale. We present an agent-based model of predator–prey dynamics where the agents (i.e.
A Hastings   +52 more
core   +2 more sources

PREDATOR–PREY MODEL WITH AGE STRUCTURE [PDF]

open access: yesThe ANZIAM Journal, 2017
Mealybug is an important pest of cassava plant in Thailand and tropical countries, leading to severe damage of crop yield. One of the most successful controls of mealybug spread is using its natural enemies such as green lacewings, where the development of mathematical models forecasting mealybug population dynamics improves implementation of ...
J. PROMRAK, G. C. WAKE, C. RATTANAKUL
openaire   +1 more source

On some Free Boundary Problems of the Prey-predator Model [PDF]

open access: yes, 2014
In this paper we investigate some free boundary problems for the Lotka-Volterra type prey-predator model in one space dimension. The main objective is to understand the asymptotic behavior of the two species (prey and predator) spreading via a free ...
Wang, Mingxin
core   +1 more source

Modeling and Analysis of Predator-Prey Model with Fear Effect in Prey and Hunting Cooperation among Predators and Harvesting

open access: yesJournal of Applied Mathematics, 2022
In this paper, we present and analyze predator-prey system where prey population is linearly harvested and affected by fear and the prey population has grown logistically in the absence of predators.
Basaznew Belew, Dawit Melese
doaj   +1 more source

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