No detection of the pathogen Batrachochytrium dendrobatidis in Sardinian cave salamanders, genus Hydromantes
No detection of the pathogen Batrachochytrium dendrobatidis in Sardinian cave salamanders, genus Hydromantes
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DOI：
10.1163/15685381-00002876
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发表时间：
2013-01-01
影响因子：
1.6
通讯作者：
Veith, Michael
中科院分区：
文献类型：
--
作者：
Chiari, Ylenia;van der Meijden, Arie;Veith, Michael
两栖动物的减少在世界范围内都有记录。壶菌病是一种由水生真菌树枝状芽孢壶菌（Batrachochytrium dendrobatim）（Bd）引起的疾病，是与这些下降相关的原因之一。两栖动物壶菌病的发生率、感染率和死亡率取决于多种因素，包括栖息地和生活方式（水生/陆生）。Bd感染在陆生比水生物种低，但完全陆生的生活方式本身可能无法解释某些物种中Bd的缺失。低个人传播，减少与感染的生物体接触的发生，也有利于降低Bd感染。为了调查Bd感染的发生在完全陆地蝾螈低扩散，我们采样的撒丁岛Hydromantes物种，以衡量他们的感染水平。撒丁岛水蜈蚣中未检测到Bd，并且可能不存在。这一现象可以解释为陆地栖息地，低扩散，主要发生在栖息地，其他两栖动物不出现的组合。
Amphibian declines have been documented worldwide. Chytridiomycosis, a disease caused by the aquatic fungus Batrachochytrium dendrobatidis (Bd), is one of the causes associated with these declines. Occurrence, rate of infection and mortality due to chytridiomycosis in amphibians depend on multiple factors including habitat and life-style (aquatic/terrestrial). Bd infection is lower in terrestrial than in aquatic species, but a fully terrestrial life-style alone may not explain the absence of Bd in some species. Low individual dispersal, decreasing the occurrence of contact with infected organisms, could also favour lower Bd infection. To survey the occurrence of Bd infection in fully terrestrial salamanders with low dispersal, we sampled the Sardinian Hydromantes species to measure their level of infection. Bd was not detected and likely absent in Sardinian Hydromantes. This phenomenon could be explained by a combination of terrestrial habitat, low dispersal, and occurrence mostly in habitats where other amphibians do not occur.