The emerging fungal pathogen, Batrachochytrium salamandrivorans (Bsal), is a significant conservation threat to salamander biodiversity in Europe, although its potential to affect North American species is poorly understood. We tested the susceptibility of two genera (Eurycea and Pseudotriton) and three populations of lungless salamanders (Plethodontidae) to Bsal. All species became infected with Bsal and two (Pseudotriton ruber and Eurycea wilderae) developed chytridiomycosis. We also documented that susceptibility of E. wilderae differed among populations. Regardless of susceptibility, all species reduced feeding when exposed to Bsal at the highest zoospore dose, and P. ruber and one population of E. wilderae used cover objects less. Our results indicate that Bsal invasion in eastern North America could have significant negative impacts on endemic lungless salamander populations. Future conservation efforts should include surveillance for Bsal in the wild and in captivity, and championing legislation that requires and subsidizes pathogen‐free trade of amphibians.

中文翻译：

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拟南芥对拟南芥的保育风险

新兴的真菌病原体，Batrachochytrium salamandrivorans（Bsal），是对欧洲sal生物多样性的重大保护威胁，尽管人们对其潜在影响北美物种的潜力知之甚少。我们测试了两个属（Eurycea和Pseudotriton）和三个种群的无肺sal（Plethodontidae）对Bsal的敏感性。所有物种感染了BSAL和两个（Pseudotriton曲霉和Eurycea wilderae）开发的壶菌病。我们还记录了野外大肠杆菌的易感性人口之间存在差异。无论敏感性的，当暴露于所有物种摄食减少BSAL在最高剂量游动孢子，和P.曲霉和一个人口E. wilderae使用的覆盖对象更少。我们的结果表明，北美东部的Bsal入侵可能对地方性无肺sal种群产生重大负面影响。未来的保护工作应包括对野外和人工圈养的Bsal进行监测，并倡导要求和补贴两栖动物无病原体贸易的立法。