No robust multispecies coexistence in a canonical model of plant–soil feedbacks,Ecology Letters

当前位置： X-MOL 学术 › Ecol. Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

No robust multispecies coexistence in a canonical model of plant–soil feedbacks
Ecology Letters ( IF 7.6 ) Pub Date : 2022-05-30 , DOI: 10.1111/ele.14027
Zachary R Miller ₁ , Pablo Lechón-Alonso ₁ , Stefano Allesina _{1,

2}

Affiliation

Plant–soil feedbacks (PSFs) are considered a key mechanism generating frequency-dependent dynamics in plant communities. Negative feedbacks, in particular, are often invoked to explain coexistence and the maintenance of diversity in species-rich communities. However, the primary modelling framework used to study PSFs considers only two plant species, and we lack clear theoretical expectations for how these complex interactions play out in communities with natural levels of diversity. Here, we extend this canonical model of PSFs to include an arbitrary number of plant species and analyse the dynamics. Surprisingly, we find that coexistence of more than two species is virtually impossible, suggesting that alternative theoretical frameworks are needed to describe feedbacks observed in diverse natural communities. Drawing on our analysis, we discuss future directions for PSF models and implications for experimental study of PSF-mediated coexistence in the field.

中文翻译：

在植物-土壤反馈的规范模型中没有稳健的多物种共存

植物-土壤反馈 (PSF) 被认为是在植物群落中产生频率相关动态的关键机制。尤其是负反馈，经常被用来解释物种丰富群落中的共存和多样性的维持。然而，用于研究 PSF 的主要建模框架仅考虑了两种植物物种，对于这些复杂的相互作用如何在具有自然多样性水平的群落中发挥作用，我们缺乏明确的理论预期。在这里，我们扩展了这种 PSF 的规范模型以包括任意数量的植物物种并分析动态。令人惊讶的是，我们发现两个以上物种的共存几乎是不可能的，这表明需要替代的理论框架来描述在不同自然群落中观察到的反馈。根据我们的分析，

更新日期：2022-05-30

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11