The effects of different cold‐temperature regimes on development, growth, and susceptibility to an abiotic and biotic stressor
The effects of different cold‐temperature regimes on development, growth, and susceptibility to an abiotic and biotic stressor
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不同冷温条件对发育、生长以及对非生物和生物应激源的敏感性的影响
DOI：
10.1002/ece3.4957
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发表时间：
2019
影响因子：
2.6
通讯作者：
Hua, Jessica
中科院分区：
文献类型：
--
作者：
Wersebe, Matthew;Blackwood, Paradyse;Guo, Ying Tong;Jaeger, Jared;May, Dyllan;Meindl, George;Ryan, Sean N.;Wong, Vivian;Hua, Jessica
全球气候变化预计将增加平均气温和气温变异。平均温度的升高导致许多春季繁殖的生物提前繁殖。然而，较早繁殖的个体也将面临更大的温度波动，包括在早期发育阶段暴露于可能有害的低温环境。使用一种春季繁殖的两栖动物模型，我们研究了胚胎暴露于不同的低温制度（控制，冷脉冲和冷压）如何影响（a）补偿性幼虫发育和生长，（B）幼虫对常见污染物的敏感性，以及（c）幼虫对寄生虫的敏感性。我们发现：（a）没有补偿性发育或生长的证据，（B）暴露于冷压处理的幼虫在孵化后4天对NaCl更敏感，但在孵化后17天恢复，（c）暴露于两种冷处理的幼虫对寄生虫的敏感性较低。这些结果表明，低温制度的变化可能会对幼虫的生长、发育和对应激源的反应产生独特的直接和间接影响。这强调了在研究气候破坏的影响时，考虑冷温变率而不仅仅是平均气温上升的重要性。
Global climate change is expected to both increase average temperatures as well as temperature variability. Increased average temperatures have led to earlier breeding in many spring‐breeding organisms. However, individuals breeding earlier will also face increased temperature fluctuations, including exposure to potentially harmful cold‐temperature regimes during early developmental stages. Using a model spring‐breeding amphibian, we investigated how embryonic exposure to different cold‐temperature regimes (control, cold‐pulse, and cold‐press) affected (a) compensatory larval development and growth, (b) larval susceptibility to a common contaminant, and (c) larval susceptibility to parasites. We found: (a) no evidence of compensatory development or growth, (b) larvae exposed to the cold‐press treatment were more susceptible to NaCl at 4‐days post‐hatching but recovered by 17‐days post‐hatching, and (c) larvae exposed to both cold treatments were less susceptible to parasites. These results demonstrate that variation in cold‐temperature regimes can lead to unique direct and indirect effects on larval growth, development, and response to stressors. This underscores the importance of considering cold‐temperature variability and not just increased average temperatures when examining the impacts of climate disruption.
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影响因子：
14.6
作者：
Martijn Gough
通讯作者：
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影响因子：
8.9
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
2.6
作者：
Michael E. Dietz;Derek R Angel;G. Robbins;Lukas A. McNaboe
通讯作者：
Lukas A. McNaboe