DOI: 10.1111/gcb.12139
论文题名: Dramatic changes in a phytoplankton community in response to local and global pressures: A 24-year survey of the river Loire (France)
作者: Larroudé S. ; Massei N. ; Reyes-Marchant P. ; Delattre C. ; Humbert J.F.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 5 起始页码: 1620
结束页码: 1631
语种: 英语
英文关键词: Cyanobacteria
; Herbicides
; Large river
; NAO
; Phosphorus decrease
; Phytoplankton community
Scopus关键词: phosphorus
; abundance
; anthropogenic effect
; climate change
; climate effect
; community response
; cyanobacterium
; herbicide
; phosphorus
; phytoplankton
; river discharge
; species diversity
; species richness
; water temperature
; article
; biomass
; biota
; chemistry
; climate change
; cyanobacterium
; France
; physiology
; phytoplankton
; river
; season
; Biomass
; Biota
; Climate Change
; Cyanobacteria
; France
; Phosphorus
; Phytoplankton
; Rivers
; Seasons
; France
; Loire River
; Cyanobacteria
英文摘要: The impact of climate change and of other anthropogenic pressures on the structure and composition of phytoplankton communities of large European rivers remains poorly documented. Here we report the findings of a study of the changes in the phytoplankton community of the middle segment of the river Loire over the past 24 years. An attempt is made to distinguish between the impact of changes acting at the local scale and that of those acting more globally. A dramatic reduction in phytoplankton abundance was observed, particularly in the mid -1990s; this was concomitant with an increase in the relative proportion of cyanobacteria. At the same time, the phytoplankton community displayed increasing richness and diversity, and little change in its size structure. All these changes seem to be related to local changes, in particular to the reduction in phosphorus concentrations, as well as to changes in climate, throughout modifications in the river discharge and water temperature. Interestingly, herbicide contamination also appeared to be of particular importance in explaining the unexpected increase in the proportion of cyanobacteria in the phytoplankton community after the 1990s. These findings suggest that combinations of numerous anthropogenic pressures acting at different spatial and temporal scales have led to a mix of predictable and unpredictable changes occurring in the phytoplankton community of the river Loire, with probable consequences for the trophic networks in this river. © 2013 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62468
Appears in Collections: 影响、适应和脆弱性
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作者单位: INRA, UMR BIOEMCO, Site de l'ENS, 46 rue d'Ulm, Paris, France; ASCONIT Consultants, 24 rue du Sagnat, Jozerand, France; CNRS, UMR 6143, Laboratoire Morphodynamique Continentale et Côtière, Université de Rouen, Lont-Saint-Aignan, France; EDF R and D, Laboratoire National Hydraulique et Environnement, 6 quai Watier, BP49, Chatou, 78401, France
Recommended Citation:
Larroudé S.,Massei N.,Reyes-Marchant P.,et al. Dramatic changes in a phytoplankton community in response to local and global pressures: A 24-year survey of the river Loire (France)[J]. Global Change Biology,2013-01-01,19(5)