Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Parshad, Rana D."'
The provision of additional food (AF) sources to an introduced predator has been identified as a mechanism to improve pest control. However, AF models with prey dependent functional responses can cause unbounded growth of the predator \cite{S27}. To
Externí odkaz:
http://arxiv.org/abs/2312.11726
A number of top down bio-control models have been proposed where the introduced predators' efficacy is enhanced via the provision of additional food (AF). However, if the predator has a pest dependent monotone functional response, pest extinction is
Externí odkaz:
http://arxiv.org/abs/2310.17003
In the current manuscript, a first two-patch model with Allee effect and nonlinear dispersal is presented. We study both the ODE case and the PDE case here. In the ODE model, the stability of the equilibrium points and the existence of saddle-node bi
Externí odkaz:
http://arxiv.org/abs/2310.10558
Aphids are damaging insect pests on many crops. Their density can rapidly build up on a host plant to several thousand over one growing season. Occasionally, a competition-driven decline in population early in the season, followed by a build-up later
Externí odkaz:
http://arxiv.org/abs/2310.03058
This paper is the first to propose an allelopathic phytoplankton competition ODE model influenced by a fear effect based on natural biological phenomena. It is shown that the interplay of this fear effect and the allelopathic term cause rich dynamics
Externí odkaz:
http://arxiv.org/abs/2309.08383
In the current manuscript, we consider a predator-prey model where the predator is modeled as a generalist using a modified Leslie-Gower scheme, and the prey exhibits group defence via a generalised response. We show that the model could exhibit fini
Externí odkaz:
http://arxiv.org/abs/2306.13666
We consider the effect of finite time extinction mechanisms (FTEM) such as (1) semi-linear harvesting terms, and (2) quasi-linear fast diffusion terms on two species Lokta-Volterra competition models. We show that these mechanisms can alter classical
Externí odkaz:
http://arxiv.org/abs/2305.19572
Population ecology theory is replete with density dependent processes. However trait-mediated or behavioral indirect interactions can both reinforce or oppose density-dependent effects. This paper presents the first two species competitive ODE and PD
Externí odkaz:
http://arxiv.org/abs/2303.04919
Non-consumptive effects such as fear of depredation, can strongly influence predator-prey dynamics. These effects have not been as well studied in the case of purely competitive systems, despite ecological and social motivations for the same. In this
Externí odkaz:
http://arxiv.org/abs/2210.10280
The literature posits that an introduced predator population, is able to drive it's target pest population extinct, if supplemented with high quality additional food of quantity $\xi > \xi_{critical}$, \cite{SP11, SPV18, SPD17, SPM13}. We show this a
Externí odkaz:
http://arxiv.org/abs/2208.00153