Collapse and rescue of evolutionary food webs under global warming
Collapse and rescue of evolutionary food webs under global warming
复制标题
全球变暖下进化食物网的崩溃与拯救
DOI：
10.1101/701839
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
N. Loeuille
中科院分区：
文献类型：
--
作者：
Youssef Yacine;K. T. Allhoff;A. Weinbach;N. Loeuille
全球变暖正在严重影响生态系统，威胁生态系统服务和人类福祉。虽然一些物种面临灭绝的风险，但一些研究表明，快速进化可能使物种能够适应环境变化并生存下来。我们评估这种进化拯救如何延伸到多营养群落，以及进化是否系统地保护了全球变暖下的生物多样性。更确切地说，我们暴露模拟营养网络的共同进化的消费者在不同的进化情景下变暖，这使我们能够评估进化对多样性维护的影响。我们还研究了如何在一个简化的消费者资源模块的身体质量和喂养偏好的演变影响共存。我们的模拟预测，在进化减慢或完全关闭的情况下，变暖引发的长期多样性损失要高得多，这表明生态进化反馈确实有助于保护生物多样性。然而，即使在快速进化的情况下，食物网的结构和功能仍然受到巨大的破坏。因此，逆转变暖可能不足以恢复以前的结构。我们的研究结果强调了进化拯救和营养结构变化之间的相互作用如何限制生态系统对变暖的反应，对保护和管理政策具有重要意义。
Global warming is severely impacting ecosystems and threatening ecosystem services as well as human well-being. While some species face extinction risk, several studies suggest the possibility that fast evolution may allow species to adapt and survive in spite of environmental changes. We assess how such evolutionary rescue extends to multitrophic communities and whether evolution systematically preserves biodiversity under global warming. More precisely, we expose simulated trophic networks of co-evolving consumers to warming under different evolutionary scenarios, which allows us to assess the effect of evolution on diversity maintenance. We also investigate how the evolution of body mass and feeding preference affects coexistence within a simplified consumer-resource module. Our simulations predict that the long-term diversity loss triggered by warming is considerably higher in scenarios where evolution is slowed down or switched off completely, indicating that eco-evolutionary feedback indeed helps to preserve biodiversity. However, even with fast evolution, food webs still experience vast disruptions in their structure and functioning. Reversing warming may thus not be sufficient to restore previous structures. Our findings highlight how the interaction between evolutionary rescue and changes in trophic structures constrains ecosystem responses to warming with important implications for conservation and management policies.
影响因子：
14.6
作者：
Martijn Gough
通讯作者：
Martijn Gough
DOI：
10.1098/rstb.2012.0230
发表时间：
2012-11-05
影响因子：
6.3
作者：
Binzer, Amrei;Guill, Christian;Rall, Bjoern C.
通讯作者：
Rall, Bjoern C.