...
首页> 外文期刊>Journal of Theoretical Biology >Nutrient flows between ecosystems can destabilize simple food chains.
【24h】

Nutrient flows between ecosystems can destabilize simple food chains.

机译:生态系统之间的营养流动会破坏简单的食物链。

获取原文
获取原文并翻译 | 示例
           

摘要

Dispersal of organisms has large effects on the dynamics and stability of populations and communities. However, current metacommunity theory largely ignores how the flows of limiting nutrients across ecosystems can influence communities. We studied a meta-ecosystem model where two autotroph-consumer communities are spatially coupled through the diffusion of the limiting nutrient. We analyzed regional and local stability, as well as spatial and temporal synchrony to elucidate the impacts of nutrient recycling and diffusion on trophic dynamics. We show that nutrient diffusion is capable of inducing asynchronous local destabilization of biotic compartments through a diffusion-induced spatiotemporal bifurcation. Nutrient recycling interacts with nutrient diffusion and influences the susceptibility of the meta-ecosystem to diffusion-induced instabilities. This interaction between nutrient recycling and transport is further shown to depend on ecosystem enrichment. It more generally emphasizes the importance of meta-ecosystem theory for predicting species persistence and distribution in managed ecosystems.
机译:生物的扩散对人口和社区的动态和稳定性有很大影响。但是,当前的元社区理论在很大程度上忽略了整个生态系统中有限养分流如何影响社区。我们研究了一个元生态系统模型,其中两个自养型消费者群落通过有限营养素的扩散在空间上耦合。我们分析了区域和地方的稳定性以及时空同步,以阐明养分循环利用和营养扩散对营养动力学的影响。我们表明,营养物质的扩散能够通过扩散诱导的时空分叉来诱导生物区室的异步局部不稳定。营养循环与养分扩散相互作用,并影响元生态系统对扩散引起的不稳定性的敏感性。养分循环与运输之间的这种相互作用进一步证明取决于生态系统的富集。它更普遍地强调了元生态系统理论对于预测受管理生态系统中物种的持久性和分布的重要性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号