gcb2735-sup-0001-TableS1.docxWord document16KTable S1. Description of variables included in structural equation models.
gcb2735-sup-0002-TableS2.docxWord document17KTable S2. Linear regression relationships between the 5-year change in ANPP of sub-dominant perennial grasses and CO2 concentration for each of three soil types.
gcb2735-sup-0003-FigureS1.docxWord document71KFigure S1. The theoretical structural equation model used to explore direct and indirect effects of CO2 enrichment on ANPP of prairie communities.
gcb2735-sup-0004-FigureS2.docxWord document49KFigure S2. Relationships between the 5-year change in the fractional contribution of Sorghastrum to ANPP of prairie communities and CO2 treatment for each of three soil types.

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