Short-term, sublethal response variables are increasingly used to provide rapid indications of whole organism responses to future climate conditions. Accumulating evidence suggests, however, that these response variables may not consistently reflect whole organism responses which manifest over longer time scales. Here, we consider the effect of moderate warming on longer-term whole organism fitness, as reflected by survival, as well as two shorter-term response variables, feeding rate and oxygen consumption, for two tropical gastropod species. We found a significant reduction in survival under warming, despite no significant effect of warming on feeding or oxygen consumption rates. This result demonstrates that the maintenance of physiological rates alone is not sufficient to sustain organism survival under elevated temperatures; rather an increase in physiological process rates is likely required. Consequently, isolated short-term physiological processes may not adequately reflect longer-term whole organism responses to altered climate. For improved understanding, both short- and long-term responses need to be considered.

中文翻译：

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尽管维持摄食和耗氧率，但海洋变暖降低了腹足动物的存活率

短期、亚致死反应变量越来越多地用于提供整个生物体对未来气候条件的反应的快速指示。然而，越来越多的证据表明，这些响应变量可能无法始终如一地反映在更长的时间尺度内表现出来的整个生物体的响应。在这里，我们考虑了适度变暖对两种热带腹足动物物种的长期整体健康状况的影响，如存活率以及两个短期响应变量，摄食率和耗氧量。尽管变暖对摄食或耗氧率没有显着影响，但我们发现在变暖的情况下存活率显着降低。这一结果表明，仅靠维持生理速率不足以维持生物体在高温下的生存；相反，可能需要增加生理过程速率。因此，孤立的短期生理过程可能无法充分反映整个生物体对气候变化的长期反应。为了加深理解，需要考虑短期和长期的反应。