Annual and seasonal movements of migrating short-tailed shearwaters reflect environmental variation in sub-Arctic and Arctic waters
Annual and seasonal movements of migrating short-tailed shearwaters reflect environmental variation in sub-Arctic and Arctic waters
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迁徙的短尾海鸥的年度和季节性运动反映了亚北极和北极水域的环境变化
DOI：
10.1007/s00227-014-2589-1
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发表时间：
2015
期刊：
影响因子：
2.4
通讯作者：
Y. Watanuki
中科院分区：
文献类型：
--
作者：
Takashi Yamamoto;K. Hoshina;B. Nishizawa;C. Meathrel;R. Phillips;Y. Watanuki
由于最近海冰减少，白令海和邻近楚科奇海南部的海洋生态系统正在经历迅速变化。短尾剪水禽Puffinus tenuirostris在北方夏季和秋季之间的非繁殖季节大量访问这一地区，并代表了占主导地位的顶级捕食者之一。为了了解太平洋次北极和北极海域持续环境变化对这一物种的影响，我们分别在2010年和2011年使用光级地理定位仪跟踪了19只和24只鸟类的迁徙活动。在这两年中，跟踪鸟类占领了西部（鄂霍次克海和千岛群岛）和东部（白令海东南）北太平洋从5月至7月。在2010年8月至9月，但不是2011年，很大一部分（2010年68%的跟踪个体，而2011年为38%）通过白令海峡进入楚科奇海觅食。根据与海洋学变量的相关性，在浅水区海面温度为8-10 °C的沃茨发生切变的可能性最高。此外，当SST高于9 °C时，海鸥花更多的时间飞行，这表明增加了对猎物的搜索努力。我们假设，向北移动的分布的剪切水可能已经与温度驱动的变化，其优势猎物，磷虾（磷虾）的丰度，磷虾产卵的时间与季节性的水温上升相吻合。我们的研究结果表明，觅食鸟类对亚北极和北极生态系统持续变化的灵活反应。
The marine ecosystems of the Bering Sea and adjacent southern Chukchi Sea are experiencing rapid changes due to recent reductions in sea ice. Short-tailed shearwatersPuffinus tenuirostrisvisit this region in huge numbers between the boreal summer and autumn during non-breeding season, and represent one of the dominant top predators. To understand the implications for this species of ongoing environmental change in the Pacific sub-Arctic and Arctic seas, we tracked the migratory movements of 19 and 24 birds in 2010 and 2011, respectively, using light-level geolocators. In both years, tracked birds occupied the western (Okhotsk Sea and Kuril Islands) and eastern (southeast Bering Sea) North Pacific from May to July. In August–September of 2010, but not 2011, a substantial proportion (68 % of the tracked individuals in 2010 compared to 38 % in 2011) moved through the Bering Strait to feed in the Chukchi Sea. Based on the correlation with oceanographic variables, the probability of shearwater occurrence was highest in waters with sea surface temperatures (SSTs) of 8–10 °C over shallow depths. Furthermore, shearwaters spent more time flying when SST was warmer than 9 °C, suggesting increased search effort for prey. We hypothesized that the northward shift in the distribution of shearwaters may have been related to temperature-driven changes in the abundance of their dominant prey, krill (Euphausiacea), as the timing of krill spawning coincides with the seasonal increase in water temperature. Our results indicate a flexible response of foraging birds to ongoing changes in the sub-Arctic and Arctic ecosystems.
饶安海中部大和隆起周围缰绳（甲壳纲：磷虾科）的垂直分布、种群结构和生活史
DOI：
--
发表时间：
2004
期刊：
Journal of Plankton Research 26
影响因子：
--
作者：
Naoki Iguchi;Naoki Iguchi
通讯作者：
Naoki Iguchi
北海道日本北海春季洄游短尾海鸥和繁殖犀牛海雀及其猎物的分布
DOI：
10.3838/jjo.60.216
发表时间：
2011
期刊：
Japanese Journal of Ornithology
影响因子：
--
作者：
倉沢康大;本田聡;綿貫豊
通讯作者：
綿貫豊