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Migration characteristics of long-tailed ducks (Clangula hyemalis) from the western Canadian Arctic

机译：加拿大西部北极地区长尾鸭的迁移特征

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There are significant deposits of oil and gas in the Beaufort and Chukchi Seas, and many long-tailed ducks (Clangula hyemalis) spend a large portion of their annual cycle in that region, but little is known about their migration patterns. Consequently, we used satellite telemetry to track movements and reveal migration routes and staging areas of 57 long-tailed ducks from the western Canadian Arctic. After molting, all ducks moved westward along the Beaufort Sea coast of Canada and Alaska, into the Chukchi and Bering Seas and the North Pacific, staging at various locations. Long-tailed ducks wintered throughout the North Pacific region as far south as British Columbia, Canada on the North American side and Japan and South Korea on the Asian side, a distribution similar to long-tailed ducks marked with transmitters in Alaska. Spring migration of long-tailed ducks was generally a reversal of fall migration, following Alaskan and Asian coastlines north and eastward to breeding areas in Northwest Territories, Canada, with the exception of two females that travelled to Russia and one male and one female that stopped in northwestern Alaska for the breeding period. Migratory patterns of ducks from this study displayed both similarities and variations to other species breeding in the Arctic, e.g., eiders. However, similar to eiders, long-tailed ducks were in or near offshore oil and gas lease areas of the Beaufort and Chukchi Seas for significant portions of their annual life cycle, making them vulnerable to impacts from exploration and development in that region.
机译：博福特和楚科奇海中有大量的石油和天然气沉积，许多长尾鸭（Clangula hyemalis）在该地区度过了大部分年循环，但对其迁移方式知之甚少。因此，我们使用了卫星遥测技术来跟踪运动，并揭示了来自加拿大西部北极地区的57只长尾鸭的迁徙路线和登载区域。蜕皮后，所有鸭子都沿着加拿大的波弗特海沿岸和阿拉斯加向西移动，进入楚科奇海，白令海和北太平洋，并在不同的地点分栖。长尾鸭在整个北太平洋地区越冬，最南端是北美洲的不列颠哥伦比亚省，加拿大，而亚洲侧则是日本和韩国，其分布类似于阿拉斯加标有发射器的长尾鸭。长尾鸭的春季迁徙通常是秋季迁徙的逆转，沿着阿拉斯加和亚洲的海岸线向北和向东延伸到加拿大西北地区的繁殖区，除了两只雌性前往俄罗斯，一只雄性和一只雌性停止在阿拉斯加西北部繁殖期。这项研究得出的鸭子的迁徙模式显示出与北极其他物种的繁殖，例如绒毛既相似又变异。然而，类似于绒鸭，长尾鸭在其整个生命周期的大部分时间内都位于博福特和楚科奇海的近海油气租赁区或其附近，这使其容易受到该地区勘探与开发的影响。

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