AT-SEA DISTRIBUTION AND BEHAVIOR OF STREAKED SHEARWATERS (CALONECTRIS LEUCOMELAS) DURING THE NONBREEDING PERIOD
AT-SEA DISTRIBUTION AND BEHAVIOR OF STREAKED SHEARWATERS (CALONECTRIS LEUCOMELAS) DURING THE NONBREEDING PERIOD
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DOI：
10.1525/auk.2010.10029
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发表时间：
2010-10-01
期刊：
影响因子：
2.8
通讯作者：
Trathan, Philip N.
中科院分区：
文献类型：
--
作者：
Yamamoto, Takashi;Takahashi, Akinori;Trathan, Philip N.
条纹海鸥（Calonectris leucomelas）在东亚和东南亚的温带地区繁殖，人们认为繁殖后会迁徙到赤道附近的热带地区。我们使用全球定位传感器（GLS）记录了该物种的迁徙和觅食行为。 2006 年，GLS 记录仪被安装在 48 只繁殖鸟类身上，随后于次年从 38 只鸟类身上回收。条纹海鸥从日本周边海域迁徙到热带的三个越冬地区：新几内亚北部海域、阿拉弗拉海和南中国海（距繁殖地分别为 4,000、5,400 和 3,500 公里）。大多数条纹海鸥在新几内亚北部过冬，该地区初级生产力较低，但鲣鱼（Katsuwonus pelamis）丰富。在越冬期间，条纹海鸥飞行的时间更长，并且在黎明和黄昏时更频繁地降落在水面上。这种活动模式类似于金枪鱼等地下捕食者的活动模式，以及已知以地下捕食者为食的热带海鸟的活动模式。我们认为，条纹海鸥在越冬期间可能与热带海洋的地下捕食者一起觅食。与地下捕食者的觅食以及滑行的形态适应可能使条纹海鸥能够在温带和热带环境中有效地觅食。 2010年2月9日收到，2010年7月3日接受。
Streaked Shearwaters (Calonectris leucomelas) breed in temperate regions of East and Southeast Asia and have been thought to migrate to tropical regions near the Equator after breeding. We documented the migratory and foraging behavior of this species using global location sensors (GLS). The GLS loggers were attached to 48 breeding birds in 2006 and were subsequently recovered from 38 birds in the following year. The Streaked Shearwaters migrated from the seas around Japan to three wintering areas in the tropics, the seas off northern New Guinea, the Arafura Sea, and the South China Sea (4,000, 5,400, and 3,500 km from the breeding colony, respectively). Most Streaked Shearwaters wintered off northern New Guinea, an area of low primary productivity but high Skipjack Tuna (Katsuwonus pelamis) abundance. Streaked Shearwaters flew for longer periods and landed on the water more frequently around dawn and dusk during the wintering period. This pattern of activity is similar to that of subsurface predators such as tuna, and to that of tropical seabirds that are known to feed with subsurface predators. We suggest that Streaked Shearwaters probably forage in association with subsurface predators in the tropical oceans during the wintering period. Foraging in association with subsurface predators and morphological adaptations for gliding may allow Streaked Shearwaters to forage efficiently in both temperate and tropical environments. Received 9 February 2010, accepted 3 July 2010.