DOI: 10.1111/ele.12835
Scopus记录号: 2-s2.0-85031508682
论文题名: Surface water CO2 concentration influences phytoplankton production but not community composition across boreal lakes
作者: Vogt R.J. ; St-Gelais N.F. ; Bogard M.J. ; Beisner B.E. ; del Giorgio P.A.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 11 起始页码: 1395
结束页码: 1404
语种: 英语
英文关键词: Climate change
; community composition
; gross primary production
; pCO2
; phytoplankton
; primary production
英文摘要: Recent experimental evidence suggests that changes in the partial pressure of CO2 (pCO2), in concert with nutrient fertilisation, may result in increased primary production and shifted phytoplankton community composition that favours species lacking adaptations to low CO2 environments. It is not clear whether these results apply in ambient freshwaters, which are already often supersaturated in CO2, and where phytoplankton structure and activity are under complex control of diverse local and regional factors. Here, we use a large-scale comparative study of 69 boreal lakes to explore the influence of existing CO2 gradients (c. 50–2300 μatm) on phytoplankton community composition and biomass production. While community composition did not respond to pCO2 gradients, gross primary production was enhanced, but only in lakes already supersaturated in CO2, demonstrating that environmental context is key in determining pCO2–phytoplankton interactions. We further argue that increased atmospheric CO2 is unlikely to influence phytoplanktonic composition and production in northern lakes. © 2017 John Wiley & Sons Ltd/CNRS Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107550
Appears in Collections: 气候减缓与适应
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作者单位: Department of Biological Sciences, University of Québec at Montréal, C.P. 8888 Succ. Centre-Ville, Montréal, QC, Canada
Recommended Citation:
Vogt R.J.,St-Gelais N.F.,Bogard M.J.,et al. Surface water CO2 concentration influences phytoplankton production but not community composition across boreal lakes[J]. Ecology Letters,2017-01-01,20(11)