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Seabird reproduction in an unpredictable environment: how King penguins provide their young chicks with food

机译:在无法预测的环境中繁殖海鸟:帝王企鹅如何为幼雏提供食物

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摘要

Pelagic seabirds depend on resources far out at sea and for which the availability can vary greatly. King penguins rely essentially on myctophid fish, which in summer are mostly available 400 to 500 km south of the Crozet Archipelago at the Antarctic Polar Front. Incubating male King penguins anticipate a possible delay in the return of the female by storing food in their stomach for several weeks, which enables them to feed the chick quickly if hatching occurs. We investigated the foraging trip duration, adult body mass regulation and the meal size for chicks relative to the laying date and the Polar Front position.
机译:远洋海鸟依赖于远离海洋的资源,其可用性可能有很大差异。帝王企鹅主要依靠Myctophid鱼,夏季通常在南极极地Crozet群岛以南400至500 km的地方捕食。孵化雄性帝王企鹅通过将食物储存在它们的胃中数周来预计雌性企鹅的返回可能会延迟,这使得它们能够在孵化时迅速喂食雏鸡。我们调查了觅食行程的持续时间,成年体重的调节以及雏鸡相对于产蛋日期和极地位置的进食量。

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