Climate-driven range expansion of a critically endangered top predator in northeast Atlantic waters
Climate-driven range expansion of a critically endangered top predator in northeast Atlantic waters
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DOI：
10.1098/rsbl.2007.0162
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发表时间：
2007-10-22
期刊：
影响因子：
3.3
通讯作者：
Yesou, Pierre
中科院分区：
文献类型：
--
作者：
Wynn, Russell B.;Josey, Simon A.;Yesou, Pierre
全球气候变化正在推动海洋生态系统分布的快速变化；这些对于较低营养级来说是很确定的，但对于迁徙的顶级捕食者来说很难量化。通过分析 25 年的目击数据集，我们发现了东北大西洋水域极度濒危的巴利阿里海鸥分布范围迅速向北扩张的证据。 20 世纪 90 年代中期海面温度上升 0.6 摄氏度被解释为潜在的控制因素，而浮游生物和被捕食鱼类物种同时向北转移表明存在强有力的自下而上的控制。我们的结果具有重要的保护意义，并为大西洋生态系统中气候驱动的政权转变提供了新的证据。
Global climate change is driving rapid distribution shifts in marine ecosystems; these are well established for lower trophic levels, but are harder to quantify for migratory top predators. By analysing a 25-year sightings-based dataset, we found evidence for rapid northwards range expansion of the critically endangered Balearic shearwater Puffinus mauretanicus in northeast Atlantic waters. A 0.6 degrees C sea surface temperature increase in the mid-1990s is interpreted as an underlying controlling factor, while simultaneous northward shifts of plankton and prey fish species suggests a strong bottom-up control. Our results have important conservation implications and provide new evidence for climate-driven regime shift in Atlantic ecosystems.