CROWDING AND LIGHT LIMITATION AFFECT PHYTOPLANKTON COMPETITION FOR NITROGEN
CROWDING AND LIGHT LIMITATION AFFECT PHYTOPLANKTON COMPETITION FOR NITROGEN
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拥挤和光照限制影响浮游植物对氮的竞争
DOI：
10.1142/s0218339017400071
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
S. Pilyugin
中科院分区：
文献类型：
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作者：
Subhorn Khonthapagdee;S. Pilyugin
我们考虑了一个浮游植物竞争氮的恒化器模型，考虑了种内和种间拥挤以及光照限制的影响。我们认为拥挤是一个附加的密度依赖的死亡率。拥挤效应可分为种内拥挤和种间拥挤，这取决于额外的死亡率是由同一物种还是由交替物种造成的。利用Lyapunov的线性化和稳定性方法，分析了单种群平衡点和共存平衡点的存在性、局部稳定性和全局稳定性。我们给出了一个数值例子，说明拥挤效应可能导致两种浮游植物物种的双稳态共存。我们证明了拥挤效应和光照限制影响了单一资源开发竞争的结果，并促进了共存。在拥挤对浮游植物群落起到稳定作用的同时，光照限制可能会破坏系统的稳定，从而产生稳定的生态环境。
We consider a chemostat model of phytoplankton competing for nitrogen taking into account effects of both intra- and interspecific crowding and the light limitation. We consider crowding as an additive density-dependent mortality rate. Crowding effects may be classified into intra- and interspecific crowding depending on whether the additional mortality is caused by the same or alternate species. We analyze the existence and local and global stability of single species and coexistence equilibria using the linearization and stability method of Lyapunov. We present a numerical example illustrating the fact that the crowding effects may lead to the bistable coexistence of two phytoplankton species. We demonstrate that the crowding effects and the light limitation affect the outcome of exploitative competition for a single resource and promote coexistence. We also show that while the crowding has a stabilizing effect on phytoplankton community, the light limitation may destabilize the system and produce susta...
基于了解人类微生物组和生物反应的新健康促进策略
DOI：
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发表时间：
2013
期刊：
影响因子：
--
作者：
Yanagihara;S.;福田真嗣;福田真嗣;福田真嗣;福田真嗣;福田真嗣
通讯作者：
福田真嗣