Context-dependent foraging decisions in rufous hummingbirds.

@article{Bateson2003ContextdependentFD,
  title={Context-dependent foraging decisions in rufous hummingbirds.},
  author={Melissa Bateson and Susan D. Healy and T. Andrew Hurly},
  journal={Proceedings. Biological sciences},
  year={2003},
  volume={270 1521},
  pages={1271-6}
}
A core assumption implicit in economic models of animal choice is that subjects assign absolute utilities to options that are independent of the type and number of alternatives available. Humans sometimes appear to violate this assumption and employ relative, as opposed to absolute, currencies when making choices. Recent evidence suggests that animals too might sometimes employ relative choice mechanisms. We tested this idea by measuring the foraging preferences of rufous hummingbirds… CONTINUE READING
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