The impact of increasing temperatures on dormancy duration in Calanus finmarchicus
The impact of increasing temperatures on dormancy duration in Calanus finmarchicus
复制标题
温度升高对鳍马哲哲休眠持续时间的影响
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
J. Runge
中科院分区：
文献类型：
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作者：
J. Pierson;H. Batchelder;Whitley J. Saumweber;A. Leising;J. Runge
休眠是哲水蚤属哲水蚤类生活史的一个重要特征。经验证据表明，休眠的持续时间是由环境温度控制的，从而驱动个体的脂质代谢。在这里，我们使用越冬个体的温度依赖性代谢率来表明，与未来几十年全球气候变化相关的气温升高可能会减少北大西洋物种C的休眠持续时间。finmarchicus最多40天。我们的计算是基于比较预测的休眠持续时间为一个给定的大小的个人在特定的温度下休眠持续时间在温暖的温度和较小的尺寸。本文还对Saumweber和Durbin [Calanus finmarchicus.深海水库角二、53，2597 - 2617.]。我们的计算表明，海洋温度的变化可能会导致C的生活史的物候变化。finmarchicus和同源物，这可能对水生食物网和营养动力学的影响。
Dormancy is a key life history trait of planktonic calanoid copepods in the genus Calanus. Empirical evidence suggests that duration of dormancy is controlled by ambient temperature driving lipid metabolism in individuals. Here, we use the temperature-dependent metabolic rates of overwintering individuals to show that increasing temperatures, associated with global climate change over the next several decades, may reduce dormancy duration for the north Atlantic species C. finmarchicus by up to 40 days. Our calculations are based on comparing predicted dormancy duration for individuals of a given size at specific temperatures to dormancy duration at warmer temperatures and smaller size. We also provide corrections to the relationship of dormancy duration described by Saumweber and Durbin [Estimating potential diapause duration in Calanus finmarchicus. Deep Sea Res. Pt. II., 53, 2597‐2617.]. Our calculations indicate that changing temperatures in the sea may lead to phenological shifts in life histories of C. finmarchicus and congeners, which may have implications for planktonic food web and trophic dynamics.