Information limitation and the dynamics of coupled ecological systems
Information limitation and the dynamics of coupled ecological systems
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DOI：
10.1038/s41559-019-1008-x
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发表时间：
2020-01-01
影响因子：
16.8
通讯作者：
Martin, Benjamin T.
中科院分区：
文献类型：
--
作者：
Hein, Andrew M.;Martin, Benjamin T.
一个理论框架的发展表明，生物体之间的相互作用是有限的感官信息的可用性，以及各种各样的相互作用种群的动力学特性取决于对这些信息的响应。在这里，我们发展数学理论来表明，这种相互作用的速率本质上受到生物体获得彼此信息的能力的限制。这种现象，我们称之为“信息限制”，很可能是广泛存在于真实的生态系统中，可以决定生态相互作用的速率和相互作用种群的长期动态。我们展示了信息限制如何导致S形相互作用率函数，可以稳定拮抗相互作用和不稳定的互利互惠的;作为一个物种或类型变得罕见，其下落的信息也变得罕见，削弱耦合与消费者，病原体和互利。这可以促进消费者-资源系统的持久性，改变宿主体内病原体感染的过程，并提高海洋生产力和碳输出的速度。我们的发现可能会揭示许多生命系统中信息驱动交互的现象。
A theoretical framework is developed to show that interactions among organisms are limited by the availability of sensory information, and that the dynamical properties of a wide variety of interacting populations depend on responses to this information.The dynamics of large ecological systems result from vast numbers of interactions between individual organisms. Here, we develop mathematical theory to show that the rate of such interactions is inherently limited by the ability of organisms to gain information about one another. This phenomenon, which we call 'information limitation', is likely to be widespread in real ecological systems and can dictate both the rates of ecological interactions and long-run dynamics of interacting populations. We show how information limitation leads to sigmoid interaction rate functions that can stabilize antagonistic interactions and destabilize mutualistic ones; as a species or type becomes rare, information on its whereabouts also becomes rare, weakening coupling with consumers, pathogens and mutualists. This can facilitate persistence of consumer-resource systems, alter the course of pathogen infections within a host and enhance the rates of oceanic productivity and carbon export. Our findings may shed light on phenomena in many living systems where information drives interactions.