ANTIPREDATOR BEHAVIOR AND THE ASSET-PROTECTION PRINCIPLE
ANTIPREDATOR BEHAVIOR AND THE ASSET-PROTECTION PRINCIPLE
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DOI：
10.1093/beheco/5.2.159
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发表时间：
1994-06-01
影响因子：
2.4
通讯作者：
CLARK, CW
中科院分区：
文献类型：
--
作者：
CLARK, CW
许多物种的动物面临着一个持续的问题，即如何在减少捕食风险和维持或增加生殖健康之间取得平衡。权衡的条件通常是不对称的：每个单独的行为决定可能只会导致适应性的小幅增加，但可能会使生物体未来的整个繁殖处于危险之中。因此，生物体的繁殖价值是大多数反捕食决策问题的重要组成部分。本文认为生殖价值是一种需要保护的资产。“资产保护原则”指出，当前的生殖资产越大，保护它就越重要。因为生殖价值通常取决于年龄和条件，最佳反捕食行为也往往取决于这些变量。我使用统一的建模技术（动态编程）来解决与反捕食者行为相关的各种问题。
Many species of animals face the continual problem of balancing the trade-off between reducing predation risks and maintaining or increasing their reproductive fitness. The terms of the trade-off are often asymmetric: each separate behavioral decision may lead to only a marginal increase in fitness, but may place the organism's entire future reproduction in jeopardy. Consequently, the organism's reproductive value is an important component of most antipredator decision problems. In this paper reproductive value is considered as an asset in need of protection. The ''asset-protection principle'' states that the larger the current reproductive asset, the more important it becomes to protect it. Because reproductive value is usually age and condition dependent, optimal antipredator behavior also often depends on these variables. I use a uniform modeling technique (dynamic programming) to address a variety of issues related to antipredator behavior.