Journal Article N762921K75 Nitrogen 27YLU75U4W Phosphorus R* phytoplankton resources temperature Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Thalassiosira pseudonana experimental evolution function-valued trait growth rate mechanistic species distribution model nitrate growth affinity nutrients performance population growth rate temperature optimum thermal breadth thermal maximum thermal minimum thermal optimum thermal reaction norm trade-off zero net growth isocline (ZNGI)