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Linking changes in species-trait relationships and ecosystem function using a network analysis of traits.
Ecological Applications ( IF 5 ) Pub Date : 2019-10-30 , DOI: 10.1002/eap.2010
Ewa Siwicka 1 , Simon F Thrush 1 , Judi E Hewitt 2, 3
Affiliation  

A major challenge in ecology and environmental management is linking changes in community composition to ecosystem functions. We developed the network analysis of traits (NAT) to show changes in community network structure based on the changes in the composition and connectivity between clusters of species that share traits that imply shifts in functional diversity. We tested the application of NAT on a 113 species found on an intertidal sandflat that was subject to experimental nitrogen addition (control [0 g N/m2 ], medium [150 g N/m2 ], and high [600 g N/m2 ]). This allowed us to directly link mechanistic changes in community composition and function with the trait-space network patterns revealed by NAT. We demonstrate that under medium (150 g N/m2 ) N treatment, functional diversity remained consistent, whereas increasing disturbance to high (600 g N/m2 ) N treatment affected the species-trait network structure and caused merging of functional clusters implying a loss of functional trait diversity.

中文翻译:

使用性状的网络分析将物种-性状关系的变化与生态系统功能联系起来。

生态和环境管理的主要挑战是将社区构成的变化与生态系统功能联系起来。我们开发了特征网络分析(NAT),以基于共享隐含功能多样性的特征的物种集群之间的组成和连通性变化,来显示社区网络结构的变化。我们测试了NAT在潮间带沙滩上发现的113种物种上的应用,这些物种受到实验性氮添加(对照[0 g N / m2],中度[150 g N / m2]和高[600 g N / m2] )。这使我们能够将社区组成和功能的机械变化与NAT揭示的特征空间网络模式直接联系起来。我们证明,在中等(150 g N / m2)N处理下,功能多样性保持一致,
更新日期:2020-01-04
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