Optimal foraging for specific nutrients in predatory beetles.

  title={Optimal foraging for specific nutrients in predatory beetles.},
  author={Kim Vilbek Jensen and David Mayntz and S\oren Toft and Fiona J. Clissold and John Hunt and David Raubenheimer and Stephen J. Simpson},
  journal={Proceedings. Biological sciences},
  volume={279 1736},
Evolutionary theory predicts that animals should forage to maximize their fitness, which in predators is traditionally assumed equivalent to maximizing energy intake rather than balancing the intake of specific nutrients. We restricted female predatory ground beetles (Anchomenus dorsalis) to one of a range of diets varying in lipid and protein content, and showed that total egg production peaked at a target intake of both nutrients. Other beetles given a choice to feed from two diets differing… CONTINUE READING
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