Co‐occurrence patterns in a steppe bird community: insights into the role of dominance and competition

A Barrero, O Ovaskainen, J Traba, J Gómez‐Catasús - Oikos, 2023 - Wiley Online Library
Spatial co‐occurrence patterns are determined by environmental factors, such as food
availability or habitat characteristics and by biotic associations. When resources are limited …

Competitive exclusion in a general multi-species chemostat model with stochastic perturbations

C Xu, S Yuan, T Zhang - Bulletin of Mathematical Biology, 2021 - Springer
Based on the fact that the continuous culture of microorganisms in a chemostat is subject to
environmental noises, we present and analyze a stochastic competition chemostat model …

Competition in the chemostat: a stochastic multi-species model and its asymptotic behavior

C Xu, S Yuan - Mathematical biosciences, 2016 - Elsevier
In this paper, a stochastic chemostat model in which n-species compete for a single growth-
limiting substrate is considered. We first prove that the stochastic model has an unique …

Average break-even concentration in a simple chemostat model with telegraph noise

C Xu, S Yuan, T Zhang - Nonlinear Analysis: Hybrid Systems, 2018 - Elsevier
In this paper, we aim to investigate the effect of telegraph noise on the continuous culture of
microorganism in a chemostat. With the help of a finite-state Markov chain, we first construct …

Ergodic property of the chemostat: A stochastic model under regime switching and with general response function

L Wang, D Jiang - Nonlinear Analysis: Hybrid Systems, 2018 - Elsevier
The dynamics of chemostat involving stochastic perturbations is considered. Instead of
assuming the familiar Monod kinetics for nutrient uptake, a general class of functions is used …

Dynamics of a stochastic delayed chemostat model with nutrient storage and Lévy jumps

X Chen, X Xu, B Tian, D Li, D Yang - Chaos, Solitons & Fractals, 2022 - Elsevier
In this paper, a stochastic delayed chemostat model with nutrient storage and Lévy jumps is
proposed. Firstly, the existence and uniqueness of the positive global solution of the model …

Stochastic dynamics of the delayed chemostat with Lévy noises

D Zhao, S Yuan, H Liu - International Journal of Biomathematics, 2019 - World Scientific
This paper formulates and studies a delayed chemostat with Lévy noises. Existence of the
globally positive solution is proved first by establishing suitable Lyapunov functions, and a …

Sensitivity analysis and feedback control of noise-induced extinction for competition chemostat model with mutualism

C Xu, S Yuan, T Zhang - Physica A: Statistical Mechanics and its …, 2018 - Elsevier
We consider a stochastic chemostat model involving two obligate mutualistic species
feeding on a limiting substrate. It is shown that the spatial arrangement of the random states …

Stationary distribution of a chemostat model with distributed delay and stochastic perturbations

M Gao, D Jiang - Applied Mathematics Letters, 2022 - Elsevier
In this paper, we consider a Lotka–Volterra food chain chemostat model that incorporates
both distributed delay and stochastic perturbations. We obtain sufficient conditions for the …

Nonautonomous chemostats with variable delays

T Caraballo, X Han, PE Kloeden - SIAM Journal on Mathematical Analysis, 2015 - SIAM
The appearance of delay terms in a chemostat model can be fully justified since the future
behavior of a dynamical system does not in general depend only on the present but also on …