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Data from: Thermal tolerance of western corn rootworm: critical thermal limits, knock-down resistance, and chill coma recovery

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DataCite Commons2022-09-28 更新2024-07-03 收录
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https://data.nal.usda.gov/node/275454
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Data files for manuscript titled "Thermal tolerance of western corn rootworm: critical thermal limits, knock-down resistance, and chill coma recovery". Metadata is contained within excel file that describes all variables for each tab. Abstract from paper: Western corn rootworm, Diabrotica virgifera virgifera, is one of the most economically important crop pests in the world with estimates of damage and control approximating over $1 billion USD annually. Despite an abundance of research devoted to studying rootworm biology in the central Corn Belt of the United States, key aspects on their thermal ecology are still lacking. Here we address this knowledge gap by measuring critical thermal limits, knock-down resistance, and chill coma recovery. In doing so, we also address methodological questions surrounding measurements of thermal tolerance using a variety of dynamic and static assays. The average critical thermal maxima across all trials was 43.0°C, while the average critical thermal minima was 2.5°C. Critical thermal limits were relatively invariant across all treatments except at faster ramping rates. Knock-down resistance decreased with increasing temperature as survival dropped from 100% at 39°C to 0% within 10 minutes at 44°C. Recovery from chill coma increased by 1.62 minutes for each hour of exposure at 0°C, while survival decreased by 50% after only 24 hours. Combined, our results present the first composite picture of different thermal traits for western corn rootworm, which will be vital for predicting their survival and potential spread under future climate change scenarios.

本数据集对应题为《西方玉米根虫的耐热性:临界热极限、击倒抗性与冷僵恢复》的研究手稿。元数据(Metadata)存储于Excel文件中,该文件对每个工作表的所有变量进行了说明。论文摘要如下:西方玉米根虫(Diabrotica virgifera virgifera)是全球经济重要性最高的作物害虫之一,年度危害与防治成本估算超过10亿美元。尽管美国中部玉米带针对根虫生物学开展了大量研究,但有关其热生态学的关键认知仍存在空白。本研究通过测定临界热极限、击倒抗性与冷僵恢复,填补了这一知识缺口。在此过程中,我们还结合多种动态与静态测定方法,探讨了耐热性测量相关的方法学问题。所有试验的平均临界热最大值为43.0℃,平均临界热最小值为2.5℃。除升温速率更快的处理组外,临界热极限在所有处理中相对恒定。击倒抗性随温度升高而下降:39℃时存活率为100%,44℃时10分钟内存活率降至0%。在0℃下暴露每小时,冷僵恢复时间增加1.62分钟,而仅暴露24小时后存活率便下降50%。综合来看,本研究首次完整呈现了西方玉米根虫不同热适应性性状的综合特征,这对于预测未来气候变化情景下其存活与潜在扩散风险至关重要。
提供机构:
Ag Data Commons
创建时间:
2022-09-28
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