A GENERAL-THEORY OF CENTRAL PLACE FORAGING FOR SINGLE-PREY LOADERS
A GENERAL-THEORY OF CENTRAL PLACE FORAGING FOR SINGLE-PREY LOADERS
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DOI：
10.1016/0040-5809(85)90029-2
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发表时间：
1985-01-01
影响因子：
1.4
通讯作者：
MCNAMARA, JM
中科院分区：
文献类型：
--
作者：
HOUSTON, AI;MCNAMARA, JM
本文分析了每次觅食行程只能收集一件物品的觅食者的猎物选择问题。用 Orians 和 Pearson（1979）的术语来说，这是单一猎物装载机在中心位置觅食。我们的分析超越了 Orians 和 Pearson 的分析，包括了远离中心地点的时间成本，该成本可以是每单位时间的常数，也可以增加。出现了两个新效果：（i）在没有收集到物品的情况下放弃觅食之旅可能是最佳选择。 (ii) 可接受的最低限度物品取决于觅食所花费的时间。我们展示了我们的框架如何涵盖通常不被认为是中心觅食场所的情况，例如必须浮出水面呼吸空气的潜水动物。
This paper analyses the problem of prey choice for a forager that can collect only one item per foraging trip. In the terminology of Orians and Pearson (1979) this is central-place foraging by single-prey loaders. Our analysis goes beyond that of Orians and Pearson by including a cost of time away from the central place that can be a constant per unit time or can increase. Two new effects emerge: (i) It can be optimal to abandon the foraging trip without having collected an item. (ii) The minimum acceptable item depends on the time spent foraging. We show how our framework encompasses cases not usually thought of as central place foraging, such as diving animals that must surface for air.