10.6084/m9.figshare.3528356.v1 John Maron John Maron Marilyn Marler Marilyn Marler Appendix A. Comparison of R2 values in models where realized species richness (RSR) or realized functional richness (RFR) were used as covariates, block and water treatment were used as fixed factors, and the various items were used as response variables. Wiley 2016 spotted knapweed resource additions Centaurea maculosa exotic species biological invasion diversity–invasibility grassland soil nitrogen Environmental Science Ecology 2016-08-05 05:36:41 Dataset https://wiley.figshare.com/articles/dataset/Appendix_A_Comparison_of_R2_values_in_models_where_realized_species_richness_RSR_or_realized_functional_richness_RFR_were_used_as_covariates_block_and_water_treatment_were_used_as_fixed_factors_and_the_various_items_were_used_as_response_variables_/3528356 Comparison of R2 values in models where realized species richness (RSR) or realized functional richness (RFR) were used as covariates, block and water treatment were used as fixed factors, and the various items were used as response variables.