Asymptotic prey profitability drives star-nosed moles to the foraging speed limit

  title={Asymptotic prey profitability drives star-nosed moles to the foraging speed limit},
  author={Kenneth C Catania and Fiona E. Remple},
Foraging theory provides models for predicting predator diet choices assuming natural selection has favoured predators that maximize their rate of energy intake during foraging. Prey profitability (energy gained divided by prey handling time) is an essential variable for estimating the optimal diet. Time constraints of capturing and consuming prey generally result in handling times ranging from minutes to seconds, yet profitability increases dramatically as handling time approaches zero… 

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Test the effects of prey density on the evolution of a predator's searching and handling behaviours using a bacterial predator, Myxococcus xanthus, to demonstrate that predators evolve behaviours that reflect at least some of the opportunities and limitations imposed by the distribution of prey.

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    Proceedings of the National Academy of Sciences
  • 2012
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  • J. Emlen
  • Economics
    The American Naturalist
  • 1966
A model which relates optimal food preference relationships and caloric yield per unit time of potential food sources is derived and the terms pegmatype and pegmatypic mating are introduced to describe such mating preferences and such a mating system.

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