Fortin Marie-Josée, Dale Mark R T, Brimacombe Chris
Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada.
Ecosystem Science and Management, University of Northern British Columbia, Prince George, British Columbia, Canada.
Proc Biol Sci. 2021 Apr 28;288(1949):20201889. doi: 10.1098/rspb.2020.1889.
Network ecology is an emerging field that allows researchers to conceptualize and analyse ecological networks and their dynamics. Here, we focus on the dynamics of ecological networks in response to environmental changes. Specifically, we formalize how network topologies constrain the dynamics of ecological systems into a unifying framework in network ecology that we refer to as the 'ecological network dynamics framework'. This framework stresses that the interplay between species interaction networks and the spatial layout of habitat patches is key to identifying which network properties (number and weights of nodes and links) and trade-offs among them are needed to maintain species interactions in dynamic landscapes. We conclude that to be functional, ecological networks should be scaled according to species dispersal abilities in response to landscape heterogeneity. Determining how such effective ecological networks change through space and time can help reveal their complex dynamics in a changing world.
网络生态学是一个新兴领域,它使研究人员能够对生态网络及其动态进行概念化和分析。在此,我们关注生态网络响应环境变化的动态。具体而言,我们将网络拓扑结构如何限制生态系统动态形式化,纳入网络生态学的一个统一框架,我们称之为“生态网络动态框架”。该框架强调,物种相互作用网络与栖息地斑块的空间布局之间的相互作用,是确定在动态景观中维持物种相互作用需要哪些网络属性(节点和链接的数量及权重)以及它们之间的权衡的关键。我们得出结论,为发挥功能,生态网络应根据物种扩散能力进行调整,以应对景观异质性。确定这种有效的生态网络如何随时间和空间变化,有助于揭示它们在不断变化的世界中的复杂动态。