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首页> 外文期刊>Oceanography and Marine Biology: An Annual Review >CLIMATE-DRIVEN TROPHIC CASCADES AFFECTING SEABIRDS AROUND THE BRITISH ISLES
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CLIMATE-DRIVEN TROPHIC CASCADES AFFECTING SEABIRDS AROUND THE BRITISH ISLES

机译：气候驱动的营养级联影响英国岛屿周围的海鸟

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摘要

After flourishing during the second half of the twentieth century, many North Sea seabird populations are now in decline. Much evidence is accumulating that climate change is driving these negative trends in growth rate. Climate-driven changes in the physical environment may affect seabirds both directly and indirectly. Direct impacts such as increasingly common extreme weather events will result in negative physiological responses. However, climate effects on seabirds are more likely to be indirect and mediated by prey quality and availability. Mounting evidence suggests that climate impacts on lower trophic levels are altering the pathway of energy to seabirds. While the basis for changes in primary production are complex and uncertain, climate-driven changes in the availability of sandeels (primarily Ammodytes marinus) and the copepod Ca/anus finmarchicus, key prey species in adjacent trophic levels, appear to be causing a reduction in breeding success and growth rate in several British seabird species.
机译：在20世纪下半叶蓬勃发展之后，许多北海海鸟种群正在减少。越来越多的证据表明，气候变化正在推动这些负增长趋势。由气候驱动的自然环境变化可能直接或间接影响海鸟。诸如越来越常见的极端天气事件等直接影响将导致负面的生理反应。但是，对海鸟的气候影响更可能是间接的，并且是由猎物的质量和可获得性介导的。越来越多的证据表明，气候对低营养级的影响正在改变海鸟的能量途径。尽管初级生产变化的基础是复杂且不确定的，但气候驱动的沙（（主要是沙门菌）和the足类Ca /肛门鳍金枪鱼（邻近营养级的主要猎物）的供应量变化似乎导致了几种英国海鸟的繁殖成功率和增长率。

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