Acquisition, allocation and turnover of carbon and mineral nutrients by plants are described, as well as interspecific variation and phenotypic plasticity, the underlying physiological causes and tradeoffs, and the ecological consequences. Interactions with other organisms, e.g. mycorhizal symbiosis and herbivory, are discussed. PREREQ: BIOL 3317. (lec 3, lab/tut 3) cr 3