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首页> 外文期刊>Polar biology >Body Condition Of Shorebirds Upon Arrival At Their Siberian Breeding Grounds
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Body Condition Of Shorebirds Upon Arrival At Their Siberian Breeding Grounds

机译：水鸟抵达西伯利亚繁殖场时的身体状况

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摘要

Arctic breeding shorebirds carry substantial body stores on their long-distance migrations from their non-breeding grounds. Upon arrival at the breeding area the remains of these stores can be used for egg formation, insurance against poor feeding conditions or rebuilding organs. We quantified body condition (body mass, total body water, lean body mass and fat mass estimated using the deuterium dilution method) in seven shorebird species caught upon arrival in the Siberian Arctic. Arrival condition was compared with incubation condition in a subset of species. After correction for structural size, body mass was significantly lower at arrival than during incubation in most of the species (but 3-18% above lean mass). Fat index (fat mass/lean mass) varied between 5.1 and 13.2%. Fat stores were estimated to enable survival for 0.6 days for the smallest and 2.5 days for the largest species. We discuss possible functions of arrival stores: insurance, egg-formation or rebuilding organs.
机译：北极繁殖的shore鸟从非繁殖场进行的远距离迁移具有大量的身体储备。到达繁殖区后，这些存储的剩余物可用于蛋的形成，防止不良饲养条件或重建器官的保障。我们对抵达西伯利亚北极地区捕获的七个shore鸟的身体状况（体重，总水，瘦体重和使用氘稀释法估算的脂肪量）进行了量化。将到达条件与孵化条件进行了比较。在校正了结构大小后，大多数物种的到达体重均比孵化期间低得多（但比瘦体重高出3-18％）。脂肪指数（脂肪质量/瘦肉质量）在5.1％和13.2％之间变化。据估计，脂肪储存能够使最小的物种生存0.6天，最大的物种生存2.5天。我们讨论了到达商店的可能功能：保险，蛋形成或重建器官。

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