Inter-breeding movements of little auks Alle alle reveal a key post-breeding staging area in the Greenland Sea
Inter-breeding movements of little auks Alle alle reveal a key post-breeding staging area in the Greenland Sea
复制标题
DOI：
10.1007/s00300-011-1064-4
复制
发表时间：
2012-02-01
期刊：
影响因子：
1.7
通讯作者：
Fort, Jerome
中科院分区：
文献类型：
--
作者：
Mosbech, Anders;Johansen, Kasper L.;Fort, Jerome
海鸟是海洋生态系统的重要组成部分。然而，人们对其非繁殖季节的生态和空间分布了解甚少。在这一关键时期迫切需要进行更多调查，因为海洋环境预计将受到气候变化和人类活动的深刻影响，对海洋顶级捕食者产生直接和间接的影响。在这里，我们研究了小海雀（Alle alle）的分布，小海雀是世界上最丰富的海鸟物种之一。我们发现，繁殖季节过后，来自东格陵兰的鸟类迅速向东北方向迁徙，在格陵兰海的禁区内停留数周。活动模式表明，在此期间飞行行为大大减少，表明这是小海雀的主要换羽区域。然后鸟类向南迁徙，在纽芬兰附近过冬。这些初步结果为该物种的保护提供了重要信息，并强调需要在更大的空间尺度上进行进一步研究。
Seabirds are important components in marine ecosystems. However, knowledge of their ecology and spatial distribution during the non-breeding season is poor. More investigations during this critical period are required urgently, as marine environments are expected to be profoundly affected by climate change and human activities, with both direct and indirect consequences for marine top predators. Here, we studied the distribution of little auks (Alle alle), one of the most abundant seabird species worldwide. We found that after the breeding season, birds from East Greenland quickly travelled north-east to stay for several weeks within a restricted area in the Greenland Sea. Activity patterns indicated that flying behaviour was much reduced during this period, suggesting that this is the primary moulting region for little auks. Birds then performed a southerly migration to overwinter off Newfoundland. These preliminary results provide important information for the conservation of this species and emphasise the need for further studies at a larger spatial scale.