Conservation risk of Batrachochytrium salamandrivorans to endemic lungless salamanders
Conservation risk of Batrachochytrium salamandrivorans to endemic lungless salamanders
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DOI：
10.1111/conl.12675
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发表时间：
2020-01-01
影响因子：
8.5
通讯作者：
Gray, Matthew J.
中科院分区：
文献类型：
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作者：
Carter, Edward Davis;Miller, Debra L.;Gray, Matthew J.
新出现的真菌病原体，Batrachochytrium salamarvorans（Bsal），是一个重大的保护威胁蝾螈生物多样性在欧洲，虽然其影响北美物种的潜力知之甚少。我们测试了两个属（Eurycea和Pseudotriton）和三个种群的无肺蝾螈（Plethodontidae）Bsal的敏感性。所有物种都感染了Bsal，两个（Pseudotriton ruber和Eurycea wilderae）发生了壶菌病。我们还证明了E.野生动物在种群间存在差异。无论敏感性如何，当暴露于最高游动孢子剂量的Bsal时，所有物种都减少了摄食，并且P.ruber和一个E.我们的研究结果表明，Bsal入侵北美东部可能会对地方性无肺蝾螈种群产生重大的负面影响。未来的保护工作应包括监测野生和圈养的Bsal，并支持要求和补贴无病原体两栖动物贸易的立法。
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.