DOI: 10.1111/gcb.12421
论文题名: Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification
作者: Eggers S.L. ; Lewandowska A.M. ; Barcelos e Ramos J. ; Blanco-Ameijeiras S. ; Gallo F. ; Matthiessen B.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 3 起始页码: 713
结束页码: 723
语种: 英语
英文关键词: Azores
; Biomass
; Climate change
; Community composition
; Diversity
; Ecosystem functioning
; Ocean acidification
; Phytoplankton
Scopus关键词: acidification
; biomass
; carbon dioxide
; climate change
; community composition
; diatom
; ecosystem dynamics
; environmental change
; environmental factor
; nutrient cycling
; phytoplankton
; species diversity
; Azores
; Portugal
; Bacillariophyta
; Cyanobacteria
; Dinophyceae
; carbon dioxide
; sea water
; article
; Atlantic islands
; biodiversity
; biomass
; chemistry
; classification
; climate change
; community composition
; cyanobacterium
; diatom
; dinoflagellate
; diversity
; ecosystem functioning
; growth, development and aging
; metabolism
; ocean acidification
; pH
; phytoplankton
; sea
; Azores
; biomass
; climate change
; community composition
; diversity
; ecosystem functioning
; ocean acidification
; phytoplankton
; Biodiversity
; Biomass
; Carbon Dioxide
; Climate Change
; Cyanobacteria
; Diatoms
; Dinoflagellida
; Hydrogen-Ion Concentration
; Oceans and Seas
; Phytoplankton
; Seawater
英文摘要: Ecosystem functioning is simultaneously affected by changes in community composition and environmental change such as increasing atmospheric carbon dioxide (CO2) and subsequent ocean acidification. However, it largely remains uncertain how the effects of these factors compare to each other. Addressing this question, we experimentally tested the hypothesis that initial community composition and elevated CO2 are equally important to the regulation of phytoplankton biomass. We full-factorially exposed three compositionally different marine phytoplankton communities to two different CO2 levels and examined the effects and relative importance (ω2) of the two factors and their interaction on phytoplankton biomass at bloom peak. The results showed that initial community composition had a significantly greater impact than elevated CO2 on phytoplankton biomass, which varied largely among communities. We suggest that the different initial ratios between cyanobacteria, diatoms, and dinoflagellates might be the key for the varying competitive and thus functional outcome among communities. Furthermore, the results showed that depending on initial community composition elevated CO2 selected for larger sized diatoms, which led to increased total phytoplankton biomass. This study highlights the relevance of initial community composition, which strongly drives the functional outcome, when assessing impacts of climate change on ecosystem functioning. In particular, the increase in phytoplankton biomass driven by the gain of larger sized diatoms in response to elevated CO2 potentially has strong implications for nutrient cycling and carbon export in future oceans. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61973
Appears in Collections: 影响、适应和脆弱性
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作者单位: GEOMAR Helmholtz Centre for Ocean Research Kiel, Duesternbrooker Weg 20, 24105 Kiel, Germany; Centre of Climate, Meteorology and Global Change, University of the Azores, Rua Capitão João d'Avila, 9700-042 Angra do Heroísmo, Portugal; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany; Institute F.-A. Forel, University of Geneva, 10 Route de Suisse, 1290 Versoix, Switzerland
Recommended Citation:
Eggers S.L.,Lewandowska A.M.,Barcelos e Ramos J.,et al. Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification[J]. Global Change Biology,2014-01-01,20(3)