Risky Theories — The Effects of Variance on Foraging Decisions

  title={Risky Theories — The Effects of Variance on Foraging Decisions},
  author={Melissa Bateson},
SYNOPSIS This paper concerns the response of foraging animals to variability in rate of gain, or risk. Both the empirical and theoretical literatures relevant to this issue are reviewed. The methodology and results from fifty-nine studies in which animals are required to choose between foraging options differing in the variances in the rate of gain available are tabulated. We found that when risk is generated by variability in the amount of reward, animals are most frequently risk-averse and… CONTINUE READING
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