Brian J. Wilsey and H. Wayne Polley. 2004. Realistically low species evenness does not alter grassland richness–productivity relationships. Ecology 85:2693–2700.

Appendix A. Additional figures.

FIG. A1. Gross primary productivity (derived from NEE1800 + R) in experimental Blackland Prairie plots planted with 1, 2, 4, or 8 species either at high or low (geometric) species evenness during (a) June and (b) October, 2001.

FIG. A2. Gross primary productivity (derived from NEE1800 + R) in experimental Blackland Prairie plots planted with 1, 2, 4, or 8 species either at high or low (geometric) species evenness during June 2002.

FIG. A3. Net biodiversity effect in experimental Blackland Prairie plots planted with 1, 2, 4, or 8 species either at high (filled circles) or low (geometric, open circles) species evenness.