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原文連結
論文資訊
- 類型：已發表論文
- 日期：2020-03-23
摘要
Foraging in uncertain environments requires balancing the risks associated with finding alternative resources against potential gains. In arid-land environments characterized by extreme variation in the amount and seasonal timing of primary production, consumers must weigh the risks associated with foraging for preferred seeds that can be cached against fallback foods of low nutritional quality (e.g., leaves) that must be consumed immediately. Here, we explore the influence of resource scarcity, body size, and seasonal uncertainty on the expected foraging behaviors of caching rodents in the northern Chihuahaun Desert by integrating these elements with a 隨機 dynamic program to determine fitness-maximizing foraging strategies. We demonstrate that resource-limited environments promote dependen
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