Michael A. Urban, David M. Nelson, F. Alayne Street-Perrot, Dirk Verschuren, and Feng Sheng Hu. 2015. A late-Quaternary perspective on atmospheric pCO2, climate, and fire as drivers of C4-grass abundance. Ecology 96:642–653. http://dx.doi.org/10.1890/14-0209.1
Appendix A: Histograms of δ13C values of individual grains of grass pollen for samples from Lake Challa and Lake Rutundu.
Ecological Archives E096-063-A1.
Supplement 1: Data showing percentage C4 grass for samples from Lake Challa and Lake Rutundu.
Ecological Archives E096-063-S1.