The third question is whether there is a tradeoff between
maximal growth rate and thermal breadth. A reasonable
hypothesis, based on the supposed tradeoff between the
evolution of an optimal enzyme structure under the optimal
temperature and enzyme functions under non-optimal temperatures,
is that a generalist that can survive under a wide
range of temperatures should grow slower than a specialist
at the optimal temperature of the specialist (Levins, 1964).
However, Huey and Hertz (Huey and Hertz, 1984) show a
counter-example in lizards whereby the fastest species can
also tolerate the broadest thermal ranges. What patterns
exist for phytoplankton remains an interesting problem