Plantae
Marshall JK. 1977. Biomass and production partitioning in response to environment in some North American grasslands. In: Marshall JK, ed. The belowground ecosystem: a synthesis of plant-associated processes. Fort Collins, CO, USA: Colorado State University, 73-84. Sims PL, Singh JS. 1978. The structure and function of ten western North American grasslands. III. Net primary production, turnover and eficiencies of energy capture and water use. Journal of Ecology 66: 573-597.