Chytrid fungus infection related to unusual mortalities of Salamandra salamandra and Bufo bufo in the Penalara Natural Park, Spain
Chytrid fungus infection related to unusual mortalities of Salamandra salamandra and Bufo bufo in the Penalara Natural Park, Spain
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DOI：
10.1017/s0030605306000093
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发表时间：
2006-01-01
期刊：
影响因子：
2.7
通讯作者：
Martínez-Solano, I
中科院分区：
文献类型：
--
作者：
Bosch, J;Martínez-Solano, I
壶菌病是一种与全球两栖动物数量下降和灭绝相关的致命疾病。在西班牙中部的佩纳拉拉自然公园保护区，这种疾病在短短几年内就几乎消灭了阿利特斯产科动物的数量，但显然没有影响其他两栖动物。我们提出了记录该疾病在其他物种中发生的新观察结果。 2001-2003年，我们收集了400多只蝾螈幼虫或最近变态的蝾螈个体，以及几只死亡的大蟾蜍个体。对变态后标本皮肤的分析表明，这两个物种都存在壶菌孢子囊和排出管。根据1999年和2003年幼虫丰度的测量，蝾螈的数量明显下降，但蟾蜍没有观察到明显的趋势。我们讨论了壶菌病在蝾螈数量减少中的可能作用，并对佩纳拉拉两栖动物群落中不同物种表现出的不同易感性进行了评论。
Chytridiomycosis is a fatal disease associated with amphibian population declines and extinctions worldwide. In a protected area in central Spain, the Penalara Natural Park, the disease almost extirpated the population of Alytes obstetricans over only a few years, but did not apparently affect other amphibians. We present new observations documenting the occurrence of the disease in other species. In 2001-2003 we collected over 400 larvae or recently metamorphosed individuals of Salamandra salamandra and also several dead individuals of Bufo bufo. The analysis of the skin of post-metamorphic specimens revealed the presence of chytrid sporangia and discharge tubes in both species. According to measures of larval abundances in 1999 and 2003 the population of S. salamandra has suffered a marked decline but no significant trend was observed for B. bufo. We discuss the possible role of chytridiomycosis in the decline of S. salamandra and comment on the differential susceptibility exhibited by various species in the amphibian community at Penalara.