Understanding how individual tradeoffs and carry‐over effects along the annual cycle influence fitness is fundamental to unravel population dynamics, but such data is particularly challenging to collect in long‐distance migrants. Here, with a full annual cycle perspective of Icelandic whimbrels Numenius phaeopus islandicus, we investigate tradeoffs across the entire distribution, assessing migration costs and wintering energetic balance experienced throughout the wintering range (from temperate to tropical regions), and link these to breeding parameters for two wintering regions.

中文翻译：

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将范围广泛的能量折衷与长距离移民的繁殖表现联系起来

理解个体权衡和沿年周期的结转效应如何影响适应度是弄清人口动态的基础，但是要收集长途移民的此类数据尤其具有挑战性。在这里，我们从冰岛奇门鸟Numenius phaeopus islandicus的年度周期角度出发，研究了整个分布的权衡，评估了整个越冬范围（从温带到热带地区）经历的迁徙成本和越冬能量平衡，并将这些与育种参数相关联。两个越冬区域。