Apex marine predator declines ninety percent in association with changing oceanic climate
Apex marine predator declines ninety percent in association with changing oceanic climate
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由于海洋气候变化，顶级海洋捕食者数量减少了百分之九十
DOI：
10.1046/j.1365-2486.1997.d01-130.x
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发表时间：
1997
影响因子：
11.6
通讯作者：
P. Pyle
中科院分区：
文献类型：
--
作者：
R. Veit;J. Mcgowan;D. Ainley;T. Wahl;P. Pyle
在加利福尼亚海流不同部分收集的三个远洋鸟类丰度的时间序列显示，1987至1994年间，烟灰鸟(Puffinus Griseus)的丰度下降了90%。这一下降与海面温度同时上升呈负相关；煤烟切变水域下降，而海洋温度上升。剪切机对温度变化的反应有九个月的滞后。我们研究的地理范围表明，烟尘的减少不是一个局部性的现象，也不能归因于短期的分布转移。在夏季(南半球冬季)，黑水鼠是加州洋流系统(CCS)的数量优势物种，据估计，20世纪70年代末的种群数量为500万只。如果观察到的加州海流系统水域变暖是全球气候变化的不可逆转的表现，那么对Sooty Searwater种群的影响似乎是深远的。
Three time series of pelagic bird abundance collected in disparate portions of the California Current reveal a 90% decline in Sooty Shearwater (Puffinus griseus) abundance between 1987 and 1994. This decline is negatively correlated with a concurrent rise in sea‐surface temperatures; Sooty Shearwaters have declined while sea temperatures have risen. There is a nine‐month lag in the response by shearwaters to changing temperatures. The geographical scale of our study demonstrates that the decline of Sooty Shearwaters is not a localized phenomenon, nor can it be ascribed to a short‐term distributional shift. The Sooty Shearwater is the numerically dominant species of the California Current System (CCS) in summer (austral winter), with an estimated population in the late 1970s of 5 million individuals. If the observed warming of the waters of the California Current System is an irreversible manifestation of a changing global climate, then the impact upon Sooty Shearwater populations seems likely to be profound.