The value of fat reserves and the tradeoff between starvation and predation.

@article{McNamara1990TheVO,
  title={The value of fat reserves and the tradeoff between starvation and predation.},
  author={J. M. McNamara and Alasdair Houston},
  journal={Acta biotheoretica},
  year={1990},
  volume={38 1},
  pages={37-61}
}
It is shown that in a range of models, the probability that a forager dies from starvation is, to a good approximation, an exponential function of energy reserves. Using a time and energy budget for a 19g passerine, we explore the consequences, in terms of starvation and predation, of various levels of energy reserves. It is shown that there exists an optimal level L* of reserves at which total mortality (starvation plus predation) is minimized. L* increases when the environment deteriorates as… CONTINUE READING