Dryad
Published December 4, 2019 | Version v1
Dataset Open

Catchment properties and the photosynthetic trait composition of freshwater plant communities

Creators

  • 1. Arizona State University
  • 2. University of Copenhagen
  • 3. University of Oulu
  • 4. Aarhus University
  • 5. University of Duisburg-Essen
  • 6. Environment Canada
  • 7. Swedish University of Agricultural Sciences
  • 8. Estonian University of Life Sciences
  • 9. University of Life Sciences in Poznań
  • 10. Finnish Environment Institute
  • 11. Norwegian Institute for Water Research
  • 12. University of Illinois at Urbana Champaign
  • 13. United Nations Environment Programme
  • 14. Centre for Ecology and Hydrology

Description

Unlike in land plants, photosynthesis in many aquatic plants relies on bicarbonate in addition to carbon dioxide (CO2) to compensate for the low diffusivity and potential depletion of CO2 in water. Concentrations of bicarbonate and CO2 vary greatly with catchment geology. In this study, we investigate whether there is a link between these concentrations and the frequency of freshwater plants possessing the bicarbonate use trait. We show, globally, that the frequency of plant species with this trait increases with bicarbonate concentration. Regionally, however, the frequency of bicarbonate use is reduced at sites where the CO2 concentration is substantially above the air equilibrium, consistent with this trait being an adaptation to carbon limitation. Future anthropogenic changes of bicarbonate and CO2 concentrations may alter the species compositions of freshwater plant communities.

Notes

Georeferenced .tif file opens fine in all softwares that handles spatial data or R using the raster package.

Funding provided by: Carlsbergfondet
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100002808

Funding provided by: Danmarks Frie Forskningsfond
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100011958

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Additional details

Related works

Is cited by
10.1126/science.aay5945 (DOI)