Acknowledgements
We thank L. Schiesari and over 20 undergraduate research assistants for
field assistance and enumeration of zooplankton. We thank the Ecology
and Evolutionary Biology department of the University of Michigan for
use of the E. S. George Reserve. This work was supported by the National
Science Foundation DEB-0089809 and DEB-1145808. S. D. Peacor
acknowledges support from AgBioResearch of Michigan State University.