Before revision:  However, even in the presence of such feedbacks, a weaker, local version of the MEPP still applies in a limited region of resource space  .
After revision:  However, even in the presence of such feedbacks, a weaker, local version of the MEPP still applies in a limited region of resource space . We show that the MEPP framework is consistent with classic experiments on competition for substitutable resources in herbivorous zooplankton and propose new experiments for testing MEPP directly .