论文标题
觅食者应该多么聪明？
How Smart Should a Forager Be?
论文作者
论文摘要
我们介绍了一个理想化的智能觅食模型，其中较高的智能对应于较大的空间范围，觅食者可以检测食物。每当最近的食物比觅食者的检测范围（$ r $）远处时，这种觅食者会随机扩散，并以弹性移动到其检测范围内最近的食物。同时，觅食者的代谢能量成本是其智力的越来越多的功能。愚蠢的觅食者随机徘徊，可能会错过附近的食物，从而使其容易饥饿。相反，在寻找食物期间，过于聪明的觅食者每步造成了每一步的大型代谢成本，并且再次容易受到饥饿的影响。我们表明，在最佳的中间智力水平上，觅食者的生命周期最大化。
We introduce an idealized model of an intelligent forager in which higher intelligence corresponds to a larger spatial range over which the forager can detect food. Such a forager diffuses randomly whenever the nearest food is more distant than the forager's detection range, $R$, and moves ballistically towards the nearest food inside its detection range. Concomitantly, the forager's metabolic energy cost per step is an increasing function of its intelligence. A dumb forager wanders randomly and may miss nearby food, thus making it susceptible to starvation. Conversely, a too-smart forager incurs a large metabolic cost per step during its search for food and is again susceptible to starvation. We show that the forager's lifetime is maximized at an optimal, intermediate level of intelligence.
