Scopus记录号: 2-s2.0-85055709065
论文题名: Effect of phytoplankton size diversity on primary productivity in the North Pacific: trait distributions under environmental variability
作者: Chen B. ; Smith S.L. ; Wirtz K.W.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期: 1 起始页码: 56
结束页码: 66
语种: 英语
英文关键词: Biodiversity
; ecosystem functioning
; evenness
; ocean model
; phytoplankton size
英文摘要: While most biodiversity and ecosystem functioning (BEF) studies have found positive effects of species richness on productivity, it remain unclear whether similar patterns hold for marine phytoplankton with high local richness. We use the continuous trait-based modelling approach, which assumes infinite richness and represents diversity in terms of the variance of the size distribution, to investigate the effects of phytoplankton size diversity on productivity in a three-dimensional ocean circulation model driven by realistic physics forcing. We find a slightly negative effect of size diversity on primary production, which we attribute to several factors including functional trait-environment interactions, flexible stoichiometry and the saturation of productivity at low diversity levels. The benefits of trait optimisation, whereby narrow size distributions enhance productivity under relatively stable conditions, tend to dominate over those of adaptive capacity, whereby greater diversity enhances the ability of the community to respond to environmental variability. © 2018 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd. 资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122776
Appears in Collections: 气候变化事实与影响
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作者单位: Research Center for Global Change Research, JAMSTEC (Japan Agency for Marine-Earth Science and Technology), 3173-25 Showa-machi, Kanazawa-ku, Yokohama, 236-0001, Japan; Helmholtz Centre for Coastal and Materials Research (HZG), Geesthacht, Germany
Recommended Citation:
Chen B.,Smith S.L.,Wirtz K.W.. Effect of phytoplankton size diversity on primary productivity in the North Pacific: trait distributions under environmental variability[J]. Ecology Letters,2019-01-01,22(1)