Marjakangas Emma-Liina, Dalsgaard Bo, Ordonez Alejandro
Section for Ecoinformatics and Biodiversity, Department of Biology, Aarhus University, Aarhus, Denmark.
Center for Ecological Dynamics in a Novel Biosphere (ECONOVO), Department of Biology, Aarhus University, Aarhus, Denmark.
Ecol Lett. 2025 Jun;28(6):e70146. doi: 10.1111/ele.70146.
Global change will create new species interactions and alter or eliminate existing ones, a process known as interaction rewiring. This rewiring can significantly affect how ecosystems function. To better predict the future structure of ecological networks, assessing their ability to adapt to changes is crucial. Here, we introduce two concepts: 'rewiring capacity' of a single species (the multidimensional trait space of all its potential interaction partners within a region) and 'rewiring potential' of a local community (the total trait space covered by interaction partners of the species at the target trophic level locally). To quantify the rewiring capacity and potential, we apply existing methods for determining species' functional interaction niches in a novel way to assess species' and communities' ability to form new interactions and the functional resilience of interaction networks to global change. To illustrate the applicability of these concepts, we quantified the rewiring capacity and potential of interactions between 1002 flowering plant species and 318 hummingbird species across the Americas. The rewiring capacity and potential metrics offer a new way to understand and quantify network resilience, allowing us to map how ecological networks respond to global change.
全球变化将创造新的物种相互作用，并改变或消除现有的相互作用，这一过程被称为相互作用重新布线。这种重新布线会显著影响生态系统的功能方式。为了更好地预测生态网络的未来结构，评估其适应变化的能力至关重要。在此，我们引入两个概念：单个物种的“重新布线能力”（其在一个区域内所有潜在相互作用伙伴的多维性状空间）和当地群落的“重新布线潜力”（当地目标营养级物种的相互作用伙伴所覆盖的总性状空间）。为了量化重新布线能力和潜力，我们以一种新颖的方式应用现有的确定物种功能相互作用生态位的方法，来评估物种和群落形成新相互作用的能力以及相互作用网络对全球变化的功能恢复力。为了说明这些概念的适用性，我们量化了美洲1002种开花植物物种和318种蜂鸟物种之间相互作用的重新布线能力和潜力。重新布线能力和潜力指标提供了一种理解和量化网络恢复力的新方法，使我们能够描绘生态网络对全球变化的响应方式。
