Facultative mutualisms: A double-edged sword for foundation species in the face of anthropogenic global change.
Facultative mutualisms: A double-edged sword for foundation species in the face of anthropogenic global change.
复制标题
DOI：
10.1002/ece3.7044
复制
发表时间：
2021-01
影响因子：
2.6
通讯作者：
Eklöf JS
中科院分区：
文献类型：
--
作者：
van der Heide T;Angelini C;de Fouw J;Eklöf JS
世界范围内的生态系统依赖于形成栖息地的基础物种，这些物种通常通过增加密度和斑块大小来促进自身发展，同时也参与兼性共生。然而，人为的全球变化（例如气候变化、富营养化、过度捕捞、土地利用变化）正在导致基础物种结构的生态系统迅速衰退，通常表现为突然崩溃。尽管已知涉及基础物种的专性共生关系的破坏会加速崩溃（例如珊瑚白化），但兼性共生关系（即依赖于环境的、非约束性的相互作用）如何影响生态系统的恢复力尚不确定。在这里，我们综合了最新的进展，并将其与现实世界例子支持的模型分析相结合，提出兼性共生可能对基础物种构成一把双刃剑。我们建议，通过放大基础物种的自我促进反馈，兼性共生可以提高基础物种对人为影响压力的抵抗力。然而，同时，互利共生依赖性会产生或加剧双稳态，这意味着当超过互利共生的缓冲能力时，可能会突然崩溃，而恢复需要条件改善到超过初始崩溃点（滞后）。因此，我们的工作强调了承认兼性互利共生对于保护和恢复基础物种结构的生态系统的重要性，但强调了面对全球变化依赖互利共生的潜在风险。我们认为，在确定这些反馈方面仍然存在重要的警告，并建议对应力梯度进行经验操作，作为识别相关非线性响应的一种方法。全世界的生态系统依赖于兼性共生的栖息地形成基础物种。然而，全球变化正在导致基础物种结构的生态系统迅速衰退，通常表现为突然崩溃。在这里，我们综合了最新的进展，并将其与模型分析相结合，提出兼性共生可以增强基础物种对全球变化压力源的抵抗力，但同时通过产生或加剧双稳态而增加突然崩溃的风险。
Ecosystems worldwide depend on habitat‐forming foundation species that often facilitate themselves with increasing density and patch size, while also engaging in facultative mutualisms. Anthropogenic global change (e.g., climate change, eutrophication, overharvest, land‐use change), however, is causing rapid declines of foundation species‐structured ecosystems, often typified by sudden collapse. Although disruption of obligate mutualisms involving foundation species is known to precipitate collapse (e.g., coral bleaching), how facultative mutualisms (i.e., context‐dependent, nonbinding reciprocal interactions) affect ecosystem resilience is uncertain. Here, we synthesize recent advancements and combine these with model analyses supported by real‐world examples, to propose that facultative mutualisms may pose a double‐edged sword for foundation species. We suggest that by amplifying self‐facilitative feedbacks by foundation species, facultative mutualisms can increase foundation species’ resistance to stress from anthropogenic impact. Simultaneously, however, mutualism dependency can generate or exacerbate bistability, implying a potential for sudden collapse when the mutualism's buffering capacity is exceeded, while recovery requires conditions to improve beyond the initial collapse point (hysteresis). Thus, our work emphasizes the importance of acknowledging facultative mutualisms for conservation and restoration of foundation species‐structured ecosystems, but highlights the potential risk of relying on mutualisms in the face of global change. We argue that significant caveats remain regarding the determination of these feedbacks, and suggest empirical manipulation across stress gradients as a way forward to identify related nonlinear responses. Ecosystems worldwide depend on habitat‐forming foundation species that engage in facultative mutualisms. Global change, however, is causing rapid declines of foundation species‐structured ecosystems, often typified by sudden collapse. Here, we synthesize recent advancements and combine this with model analyses to propose that facultative mutualisms can increase foundation species resistance to global change stressors, but simultaneously increase the risk of sudden collapse by generating or exacerbating bistability.
登录
查看更多内容
影响因子：
9.8
作者：
Bulleri F;Eriksson BK;Queirós A;Airoldi L;Arenas F;Arvanitidis C;Bouma TJ;Crowe TP;Davoult D;Guizien K;Iveša L;Jenkins SR;Michalet R;Olabarria C;Procaccini G;Serrão EA;Wahl M;Benedetti-Cecchi L
通讯作者：
Benedetti-Cecchi L
影响因子：
5.5
作者：
Derksen-Hooijberg, Marlous;Angelini, Christine;van der Heide, Tjisse
通讯作者：
van der Heide, Tjisse
影响因子：
2.9
作者：
Altieri, Andrew H.;Silliman, Brian R.;Bertness, Mark D.
通讯作者：
Bertness, Mark D.
影响因子：
8.8
作者：
Afkhami, Michelle E.;McIntyre, Patrick J.;Strauss, Sharon Y.
通讯作者：
Strauss, Sharon Y.
影响因子：
16.6
作者：
Angelini C;Griffin JN;van de Koppel J;Lamers LPM;Smolders AJP;Derksen-Hooijberg M;van der Heide T;Silliman BR
通讯作者：
Silliman BR