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首页> 外文期刊>Ecology letters >Putting prey and predator into the CO_2 equation - qualitative and quantitative effects of ocean acidification on predator-prey interactions
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Putting prey and predator into the CO_2 equation - qualitative and quantitative effects of ocean acidification on predator-prey interactions

机译：将猎物和捕食者纳入CO_2方程-海洋酸化对捕食者与猎物相互作用的定性和定量影响

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Little is known about the impact of ocean acidification on predator-prey dynamics. Herein, we examined the effect of carbon dioxide (CO_2) on both prey and predator by letting one predatory reef fish interact for 24h with eight small or large juvenile damselfishes from four congeneric species. Both prey and predator were exposed to control or elevated levels of CO_2. Mortality rate and predator selectivity were compared across CO_2 treatments, prey size and species. Small juveniles of all species sustained greater mortality at high CO_2 levels, while large recruits were not affected. For large prey, the pattern of prey selectivity by predators was reversed under elevated CO_2. Our results demonstrate both quantitative and qualitative consumptive effects of CO_2 on small and larger damselfish recruits respectively, resulting from CO_2-induced behavioural changes likely mediated by impaired neurological function. This study highlights the complexity of predicting the effects of climate change on coral reef ecosystems.
机译：关于海洋酸化对捕食者-猎物动力学的影响知之甚少。在本文中，我们通过让一只掠食性珊瑚鱼与来自四个同类物种的八个大小不等的小雀鲷互动24小时，研究了二氧化碳（CO_2）对捕食者和捕食者的影响。捕食者和捕食者都暴露于对照或升高的CO_2水平。比较了CO_2处理，猎物大小和物种的死亡率和捕食者选择性。所有物种的幼鱼在较高的CO_2水平下仍保持较高的死亡率，而新兵则不受影响。对于大型猎物，在升高的CO_2下，捕食者对猎物的选择性模式相反。我们的结果表明，CO_2分别对小型和大型雀鲷新兵的定量和定性消费效果，这是由于CO_2诱导的行为变化（可能是由神经功能受损所介导的）引起的。这项研究强调了预测气候变化对珊瑚礁生态系统影响的复杂性。

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