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首页> 外文期刊>Canadian Journal of Zoology >Food caching by a marine apex predator, the leopard seal (Hydrurga leptonyx)
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Food caching by a marine apex predator, the leopard seal (Hydrurga leptonyx)

机译：海洋顶尖捕食者的食物缓存，豹纹密封（Hypturga Leptonyx）

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摘要

The foraging behaviors of apex predators can fundamentally alter ecosystems through cascading predator-prey interactions. Food caching is a widely studied, taxonomically diverse behavior that can modify competitive relationships and affect population viability. We address predictions that food caching would not be observed in the marine environment by summarizing recent caching reports from two marine mammal and one marine reptile species. We also provide multiple caching observations from disparate locations for a fourth marine predator, the leopard seal (Hydrurga leptonyx (de Blainville, 1820)). Drawing from consistent patterns in the terrestrial literature, we suggest the unusual diversity of caching strategies observed in leopard seals is due to high variability in their polar marine habitat. We hypothesize that caching is present across the spectrum of leopard seal social dominance; however, prevalence is likely to increase in smaller, less-dominant animals that hoard to gain competitive advantage. Given the importance of this behavior, we draw attention to the high probability of observing food caching behavior in other marine species.
机译：顶点捕食者的觅食行为可以通过级联捕食者 - 猎物交互来基本改变生态系统。食品缓存是一个广泛研究的分类论多类的行为，可以修改竞争关系并影响人口的活力。我们通过总结来自两个海洋哺乳动物和一个海上爬行动物物种的最近缓存报告，在海洋环境中不观察到食品缓存的预测。我们还提供多种缓存观察到第四次海洋捕食者，豹纹密封（Hydruga Leptonyx（de Blainville，1820））的不同地点。从陆地文学中汲取一致的模式，我们建议在豹纹密封件中观察到的缓存策略的异常多样性是由于其极地海洋栖息地的高度变化。我们假设缓存存在于豹子密封社会优势的频谱中;然而，流行率可能会增加囤积竞争优势的较小，较小的动物。鉴于这种行为的重要性，我们注意到在其他海洋物种中观察食物缓存行为的高可能性。

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