Impact of climate change on marine pelagic phenology and trophic mismatch
Impact of climate change on marine pelagic phenology and trophic mismatch
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DOI：
10.1038/nature02808
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发表时间：
2004-08-19
期刊：
影响因子：
64.8
通讯作者：
Richardson, AJ
中科院分区：
文献类型：
--
作者：
Edwards, M;Richardson, AJ
物候学是对每年重复发生的生命周期事件的研究，如迁徙和开花的时间，可以提供气候变化的特别敏感的指标。物候的变化可能对生态系统的功能很重要，因为对气候变化的反应程度可能因功能群体和多个营养级而异。物候关系的脱钩将对营养相互作用产生重要影响，改变食物网结构，并导致最终的生态系统水平的变化。温带海洋环境可能特别容易受到这些变化的影响，因为较高营养级的补充成功在很大程度上取决于与脉冲式浮游生物生产的同步性（2，3）。利用1958年至2002年期间66个浮游生物分类群的长期数据，我们调查了气候变暖信号（4）是否在生态群落中的所有营养级和功能组中出现。在这里，我们表明，不仅是海洋浮游生物群落对气候变化的反应，而且整个社会和季节周期的反应水平不同，导致营养水平和功能群之间的不匹配。
Phenology, the study of annually recurring life cycle events such as the timing of migrations and flowering, can provide particularly sensitive indicators of climate change(1). Changes in phenology may be important to ecosystem function because the level of response to climate change may vary across functional groups and multiple trophic levels. The decoupling of phenological relationships will have important ramifications for trophic interactions, altering food-web structures and leading to eventual ecosystem-level changes. Temperate marine environments may be particularly vulnerable to these changes because the recruitment success of higher trophic levels is highly dependent on synchronization with pulsed planktonic production(2,3). Using long-term data of 66 plankton taxa during the period from 1958 to 2002, we investigated whether climate warming signals(4) are emergent across all trophic levels and functional groups within an ecological community. Here we show that not only is the marine pelagic community responding to climate changes, but also that the level of response differs throughout the community and the seasonal cycle, leading to a mismatch between trophic levels and functional groups.