Supporting data for "Sulfur geochemistry impacts population oscillations of wild rice (Zizania palustris)"

  • Sophia LaFond-Hudson (Creator)
  • Nathan W. Johnson (Creator)
  • John J Pastor (Creator)
  • Brad Dewey (Creator)



Wild rice populations decline with exposure to elevated sulfate due to production of sulfide in anoxic sediment. Using self-sustaining wild rice mesocosms, we collected data on the population response to sulfate, as well as iron and litter, which both may modify the production and availability of sulfide to plants. Wild rice also experiences natural population oscillations due to delays in release of nitrogen from decomposing litter. We use this data to investigate how sulfate-induced population declines interact with stable litter-driven population cycles. Population data was collected 2014-2019, and geochemical data (iron, sulfide, pH) was collected in 2019, after 5 years of of a factorial design treatment (sulfate, iron, litter).

Data consist of 1) population data from 2014-2019, including germination count, survival count, vegetative biomass, number of plants, seed biomass, number of seeds, and individual seed mass; 2) geochemical data from 2019, including sulfide, iron, and pH collected using passive equilibrium samples (peepers).

Funding information
Sponsorship: MNSeaGrant, Fond du Lac Band of Lake Superior Chippewa
Date made available2020
PublisherData Repository for the University of Minnesota
Date of data productionSep 1 2014 - Oct 1 2019

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