Metabolic Trade-Offs Promote Diversity in a Model Ecosystem.
Metabolic Trade-Offs Promote Diversity in a Model Ecosystem.
复制标题
DOI：
10.1103/physrevlett.118.028103
复制
发表时间：
2017-01-13
影响因子：
8.6
通讯作者：
Wingreen NS
中科院分区：
文献类型：
--
作者：
Posfai A;Taillefumier T;Wingreen NS
在自然界中，大量的物种可以在少量的共享资源上共存;然而，资源竞争模型预测，稳定共存的物种数量不能超过资源数量。受最近浮游植物研究的启发，我们将权衡引入到资源竞争模型中，发现无限数量的物种可以共存。我们的模型自发地再现了自然生态系统的几个显着特征，包括关键物种和种群动态和中性理论的丰度特征，尽管潜在的非中性资源竞争。
In nature, a large number of species can coexist on a small number of shared resources; however, resource-competition models predict that the number of species in steady coexistence cannot exceed the number of resources. Motivated by recent studies of phytoplankton, we introduce trade-offs into a resource-competition model and find that an unlimited number of species can coexist. Our model spontaneously reproduces several notable features of natural ecosystems, including keystone species and population dynamics and abundances characteristic of neutral theory, despite an underlying non-neutral competition for resources.