Impacts of thermal mismatches on chytrid fungus Batrachochytrium dendrobatidis prevalence are moderated by life stage, body size, elevation and latitude
Impacts of thermal mismatches on chytrid fungus Batrachochytrium dendrobatidis prevalence are moderated by life stage, body size, elevation and latitude
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DOI：
10.1101/473934
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发表时间：
2018-11
期刊：
影响因子：
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通讯作者：
Jeremy M. Cohen;T. McMahon;Chloe Ramsay;E. A. Roznik;Erin L. Sauer;S. Bessler;D. Civitello;Bryan K. Delius;Neal T Halstead;Sarah A. Knutie;K. Nguyen;Nicole Ortega;B. Sears;Matthew D. Venesky;S. Young;Jason Rohr
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文献类型：
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作者：
Jeremy M. Cohen;T. McMahon;Chloe Ramsay;E. A. Roznik;Erin L. Sauer;S. Bessler;D. Civitello;Bryan K. Delius;Neal T Halstead;Sarah A. Knutie;K. Nguyen;Nicole Ortega;B. Sears;Matthew D. Venesky;S. Young;Jason Rohr
全球气候变化正在增加不可预测天气状况的发生频率；然而，目前尚不清楚物种水平和地理因素（包括体型和纬度）如何调节异常温暖或寒冷的气温对疾病的影响。由于较大的宿主和低纬度的宿主通常有较慢的适应时间，我们假设它们的疾病易感性在“热失配”或基线气候与调查期间温度之间的差异下增加。在这里，我们研究了热失配如何与体型、生命阶段、栖息地、纬度、海拔、系统发育和 IUCN 保护状态相互作用，以预测壶菌 Batrachochytrium dendrobatidis (Bd) 在对 38,967 个两栖动物宿主的全球分析中的感染流行率。正如假设的那样，我们发现较大宿主和低纬度宿主的敏感性受到热失配的强烈影响。此外，受保护问题影响的宿主比其他宿主更容易受到热失配的影响，这表明热失配可能导致了最近两栖动物的减少。数据可访问性声明 如果稿件被接受，支持结果的数据将存档在适当的公共存储库中，例如 Dryad 或 Figshare，并且数据 DOI 将包含在文章末尾。
Global climate change is increasing the frequency of unpredictable weather conditions; however, it remains unclear how species-level and geographic factors, including body size and latitude, moderate impacts of unusually warm or cool temperatures on disease. Because larger hosts and lower-latitude hosts generally have slower acclimation times, we hypothesized that their disease susceptibility increases under “thermal mismatches”, or differences between baseline climate and the temperature during surveying. Here, we examined how thermal mismatches interact with body size, life stage, habitat, latitude, elevation, phylogeny, and IUCN conservation status to predict infection prevalence of the chytrid fungus Batrachochytrium dendrobatidis (Bd) in a global analysis of 38,967 amphibian hosts. As hypothesized, we found that the susceptibility of larger hosts and hosts from lower latitudes was strongly influenced by thermal mismatches. Furthermore, hosts of conservation concern are more susceptible than others following thermal mismatches, suggesting that thermal mismatches might have contributed to recent amphibian declines. Data Accessibility Statement Should the manuscript be accepted, the data supporting the results will be archived in an appropriate public repository such as Dryad or Figshare and the data DOI will be included at the end of the article.