Pulsed-resource dynamics constrain the evolution of predator-prey interactions.

  title={Pulsed-resource dynamics constrain the evolution of predator-prey interactions.},
  author={Ville-Petri Friman and Jouni Laakso},
  journal={The American naturalist},
  volume={177 3},
Although temporal variability in the physical environment plays a major role in population fluctuations, little is known about how it drives the ecological and evolutionary dynamics of species interactions. We studied experimentally how extrinsic resource pulses affect evolutionary and ecological dynamics between the prey bacterium Serratia marcescens and the predatory protozoan Tetrahymena thermophila. Predation increased the frequency of defensive, nonpigmented prey types, which bore… CONTINUE READING
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