DOI: 10.1111/ecog.04643
论文题名: Spatio-temporal dynamics of multi-trophic communities reveal ecosystem-wide functional reorganization
作者: Pecuchet L. ; Lindegren M. ; Kortsch S. ; Całkiewicz J. ; Jurgensone I. ; Margonski P. ; Otto S.A. ; Putnis I. ; Strāķe S. ; Nordström M.C.
刊名: Ecography
ISSN: 9067590
出版年: 2020
卷: 43, 期: 2 语种: 英语
英文关键词: climate change
; community dynamics
; eutrophication
; functional reorganisation
; multi-trophic
; temperature
Scopus关键词: anthropogenic effect
; community dynamics
; community structure
; dominance
; ecosystem function
; environmental change
; environmental response
; eutrophication
; functional role
; marine ecosystem
; spatiotemporal analysis
; temperature effect
; Invertebrata
英文摘要: Large-scale alterations in marine ecosystems as a response to environmental and anthropogenic pressures have been documented worldwide. Yet, these are primarily investigated by assessing abundance fluctuations of a few dominant species, which inadequately reflect ecosystem-wide changes. In addition, it is increasingly recognized that it is not species identity per se, but their traits that determine environmental responses, biological interactions and ecosystem functioning. In this study, we investigated long-term, spatio-temporal variability in trait composition across multiple organism groups to assess whether functional changes occur in a similar way across trophic levels and whether shifts in trait composition link to environmental change. We combined extensive trait datasets with long-term surveys (30–40 yr) of four organism groups (phytoplankton, zooplankton, benthic invertebrates and fish) in three environmentally distinct areas of a large marine ecosystem. We found similar temporal trajectories in the community weighted mean trait time-series of the different trophic groups, revealing ecosystem-wide functional changes. The traits involved and their dynamics differed between areas, concurrent with climate-driven changes in temperature and salinity, as well as more local dynamics in nutrients and oxygen. This finding highlights the importance of considering both global climate, as well as local external drivers when studying ecosystem changes. Using a multi-trophic trait-based approach, our study demonstrates the importance of integrating community functional dynamics across multiple trophic levels to capture ecosystem-wide responses which could, ultimately, help moving towards a holistic understanding, assessment and management of marine ecosystems. © 2019 The Authors. Ecography published by John Wiley & Sons Ltd on behalf of Nordic Society Oikos Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159659
Appears in Collections: 气候变化与战略
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作者单位: Environmental and Marine Biology, Åbo Akademi Univ., Turku, Finland; Norwegian College of Fishery Science, UiT The Arctic Univ. of Norway, Tromsø, Norway; Centre for Ocean Life, National Inst. of Aquatic Resources (DTU-Aqua), Technical Univ. of Denmark, Kgs. Lyngby, Denmark; National Marine Fisheries Research Inst., Gdynia, Poland; Jurgensone and S. Strāķe, Latvian Inst. of Aquatic Ecology, Riga, Latvia; Inst. of Marine Ecosystem and Fishery Science, Center for Earth System Research and Sustainability, Univ. of Hamburg, Hamburg, Germany; Inst. of Food Safety, Animal Health and Environment BIOR, Riga, Latvia
Recommended Citation:
Pecuchet L.,Lindegren M.,Kortsch S.,et al. Spatio-temporal dynamics of multi-trophic communities reveal ecosystem-wide functional reorganization[J]. Ecography,2020-01-01,43(2)