Northern Prairie Wildlife Research Center
247. Steward, K K, and W. H. Ornes. 1975. The autoecology of sawgrass in the Florida Everglades. Ecology 56:162-171.
Mature sawgrass stands showed little seasonal variation in standing crop, plant density, or concentration of most inorganic nutrients. Plant nutrient requirement estimates were low; most nutrients were in adequate supply except that available N, P, K, and Cu were generally very low. Concentration of most nutrients in culms regrowing after fires was high during early growth stages, but decreased to levels found in older culms after 3-5 months (Ca, Fe, and Zn were the exceptions). After 18 months of growth, burned stands had produced only 38% of the standing crop contained in unburned mature stands. Apparent low nutrient demands by sawgrass may partially explain its dominance. [From authors' abstract]