Evolution as a critical component of plankton dynamics.

  title={Evolution as a critical component of plankton dynamics.},
  author={Gregor F. Fussmann and Stephen P. Ellner and Nelson G. Hairston},
  journal={Proceedings. Biological sciences},
  volume={270 1519},
Microevolution is typically ignored as a factor directly affecting ongoing population dynamics. We show here that density-dependent natural selection has a direct and measurable effect on a planktonic predator-prey interaction. We kept populations of Brachionus calyciflorus, a monogonont rotifer that exhibits cyclical parthenogenesis, in continuous flow-through cultures (chemostats) for more than 900 days. Initially, females frequently produced male offspring, especially at high population… CONTINUE READING
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