Physiological stress as a fundamental mechanism linking predation to ecosystem functioning.

  title={Physiological stress as a fundamental mechanism linking predation to ecosystem functioning.},
  author={Dror Hawlena and Oswald J Schmitz},
  journal={The American naturalist},
  volume={176 5},
We present a framework to explain how prey stress responses to predation can resolve context dependency in ecosystem properties and functions such as food chain length, secondary production, elemental stoichiometry, and cycling. We first describe the major nonspecific physiological stress mechanisms and their ecologically relevant consequences. We next synthesize the evidence for prey physiological responses to predation risk and demonstrate that they are similar across taxa and fit well within… CONTINUE READING
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