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Eco-physiological adaptations that favour freshwater cyanobacteria in a changing climate

Carey, C.C. and Ibelings, B.W. and Hoffmann, E.P. and Hamilton, D.P. and Brookes, J.D. (2012) Eco-physiological adaptations that favour freshwater cyanobacteria in a changing climate. Water Research, 46, 1394-1407. ISSN 0043-1354.

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Climate change scenarios predict that rivers, lakes, and reservoirs will experience increased temperatures, more intense and longer periods of thermal stratification, modified hydrology, and altered nutrient loading. These environmental drivers will have substantial effects on freshwater phytoplankton species composition and biomass, potentially favouring cyanobacteria over other phytoplankton. In this Review, we examine how several cyanobacterial eco-physiological traits, specifically, the ability to grow in warmer temperatures; buoyancy; high affinity for, and ability to store, phosphorus; nitrogen-fixation; akinete production; and efficient light harvesting, vary amongst cyanobacteria genera and may enable them to dominate in future climate scenarios. Variation in predicted climatic shifts will most likely interact with variation in cyanobacterial traits to create regional differences in which cyanobacterial taxa dominate. Finally, we suggest that physiological traits specific to different cyanobacterial taxa may favour certain taxa over others in different regions, but overall, cyanobacteria as a group are likely to increase in most regions in the future.

Item Type:Article
Institutes:Nederlands Instituut voor Ecologie (NIOO)
ID Code:10160
Deposited On:16 Feb 2012 12:07
Last Modified:22 Aug 2013 11:53

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