Archbold Biological Station, 123 Main Drive, Venus, FL 33960, USA.
Ecohealth. 2013 Jun;10(2):184-9. doi: 10.1007/s10393-013-0843-5. Epub 2013 May 4.
The interactive effects of environmental stressors and emerging infectious disease pose potential threats to stream salamander communities and their headwater stream ecosystems. To begin assessing these threats, we conducted occupancy surveys and pathogen screening of stream salamanders (Family Plethodontidae) in a protected southern Appalachians watershed in Georgia and North Carolina, USA. Of the 101 salamanders screened for both chytrid fungus (Batrachochytrium dendrobatidis) and Ranavirus, only two exhibited low-level chytrid infections. Prevalence of Ranavirus was much higher (30.4% among five species of Desmognathus). Despite the ubiquity of ranaviral infections, we found high probabilities of site occupancy (≥0.60) for all stream salamander species.
环境胁迫和新出现的传染病的相互作用对溪流蝾螈群落及其源头溪流生态系统构成潜在威胁。为了开始评估这些威胁，我们在美国佐治亚州和北卡罗来纳州的一个受保护的阿巴拉契亚南部流域对溪流蝾螈（有尾目蝾螈科）进行了占有度调查和病原体筛查。在对 101 只同时进行壶菌（Batrachochytrium dendrobatidis）和 Ranavirus 筛查的蝾螈中，只有 2 只表现出低水平的壶菌感染。Ranavirus 的流行率要高得多（五种 Desmognathus 中有 30.4%）。尽管 Ranavirus 感染普遍存在，但我们发现所有溪流蝾螈物种的地点占有率（≥0.60）都很高。
