生态系统工程师的高寄生虫患病率与当地和景观层面的因素相关
Shelby L Ziegler1, Wil E Atencio2, John M Carroll2
1Odum School of Ecology, University of Georgia, Athens, GA, USA. shelbylziegler@gmail.com.
Oecologia
|June 19, 2024
概括
寄生虫Perkinsus marinus和Haplosporidium nelsoni在格鲁吉亚广泛存在. 在格鲁吉亚广泛存在. 景观环境影响了寄生虫的流行,对每个寄生虫的影响各不相同,突出了多层次的驱动因素.
科学领域:
- 海洋生态海洋生态学
- 寄生虫学的寄生虫学
- 生态系统工程生态系统工程
背景情况:
- 是面临全球衰退的关键沿海生态系统工程师,部分原因是致命的疾病,如Dermo (Perkinsus marinus) 和MSX (Haplosporidium nelsoni).
- 了解这些病原体的空间驱动因素至关重要,但除了水质和水力动力学之外的信息有限.
- 寄生虫影响等基础物种可能对河口社区产生级联影响.
研究的目的:
- 调查中Perkinsus marinus和Haplosporidium nelsoni的流行和强度空间变化的驱动因素.
- 检查宿主大小,当地珊瑚礁特性和景观特性对这些寄生虫在区域范围内的影响.
主要方法:
- 在美国乔治亚州海岸沿线的24个礁系统采样.
- 分析寄生虫的流行和强度,考虑宿主大小,珊瑚礁特征和景观背景.
- 统计建模以解释寄生虫感染的空间模式.
主要成果:
- 至少有一种寄生虫感染的普遍高患病率 (91.02%±8.89).
- 统计模型解释了寄生虫流行和强度变化的18-42%.
- 景观背景积极预测P. marinus,但负面预测H. nelsoni,表明复杂的空间影响.
结论:
- 中的寄生虫的流行和强度受到在多个空间尺度上运行的因素的影响.
- 同一个环境因素可以对同一宿主物种内的不同寄生虫产生不同的影响.
- 这些发现强调了需要采用多层面的方法来管理病并保护这些重要的生态系统工程师.
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