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

    Author(s)
    Carey, Cayelan C
    Ibelings, Bas W
    Hoffmann, Emily P
    Hamilton, David P
    Brookes, Justin D
    Griffith University Author(s)
    Hamilton, David P.
    Year published
    2012
    Metadata
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    Abstract
    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 ...
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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. We predict that spatial variation in climate change will interact with physiological variation in cyanobacteria to create differences in the dominant cyanobacterial taxa among regions. 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.
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    Journal Title
    Water Research
    Volume
    46
    Issue
    5
    DOI
    https://doi.org/10.1016/j.watres.2011.12.016
    Subject
    Physical Geography and Environmental Geoscience not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/337290
    Collection
    • Journal articles

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