Extinction and permanence of two-nutrient and two-microorganism chemostat model with pulsed input

Extinction and permanence of two-nutrient and two-microorganism chemostat model with pulsed input
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脉冲输入的两种营养素和两种微生物恒化器模型的灭绝和持久性

DOI:
10.1016/j.cnsns.2009.11.008
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发表时间:
2010-10
期刊:
Communications in Nonlinear Science & Numerical Simulation
影响因子:
--
通讯作者:
Zhang, Ping
Zhang, Ping
中科院分区:
其他
文献类型:
--
作者:
Wang, Tieying;Chen, Lansun;Zhang, Ping

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在这篇文章中,考虑了两种微生物竞争两种完全互补的、生长受限的营养物质和周期性脉冲输入的恒化器模型。利用Floquet定理,我们发现当r1和lt;1时,两微生物消灭周期解是全局渐近稳定的。同时,当r2>1时,我们可以发现营养物质和微生物是永久的。同时,给出了基于模型中具有生物学意义的参数的充分条件,这些条件预测了在某些参数范围内竞争排斥和在其他参数范围内共存。最后,通过数值模拟验证了我们的结果。
In this paper, a model of the chemostat involving two species of microorganisms competing for two perfectly complementary, growth-limiting nutrients and periodically pulsed input is considered. By using the Floquet’s theorem, we find the two-microorganism eradication periodic solution is globally asymptotically stable if R1<1. At the same time we can find nutrients and microorganisms are permanent if R2>1. Meanwhile, sufficient conditions based on biologically meaningful parameters in the model are given that predict competitive exclusion for certain parameter ranges and coexistence for others. Finally, our results are illustrated by numerical simulation.
DOI: 10.1002/bit.260200203
发表时间: 1978-01-01
影响因子: 3.8
作者:
BADER, FG
通讯作者: BADER, FG
DOI: 10.1098/rstb.1982.0055
发表时间: 1982-01-01
期刊: PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES
影响因子: --
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