寄生虫对资源供应的反应可以通过宿主内部的共同感染相互作用来改变
Diana Erazo1,2,3,4, Amy R Sweeny5, Amy B Pedersen5
1Institute of Infection, Veterinary, and Ecological Sciences, University of Liverpool, Liverpool, UK.
Proceedings. Biological sciences
|November 4, 2025
概括
资源供应通过改变宿主-寄生虫动态影响野生动物疾病. 同感染可以扭转这些影响,表明环境变化如何影响树木小鼠的疾病传播.
科学领域:
- 生态生态学 生态生态学
- 流行病学 流行病学
- 寄生虫学的寄生虫学
背景情况:
- 环境变化通过改变食物资源和宿主-寄生虫相互作用,影响野生动物疾病.
- 补充资源供应对寄生虫传播的影响是可变的,其在共感染中的作用还没有得到充分研究.
研究的目的:
- 探索共感染寄生虫如何调解资源供应对野生动物疾病动态的影响.
- 在树木小鼠中模拟资源供应,共感染和宿主-寄生虫相互作用之间的相互作用.
主要方法:
- 开发了一个基于木鼠 (Apodemus sylvaticus) 感染线虫 (Heligmosomoides polygyrus) 和微寄生虫 (Eimeria hungaryensis) 的数学模型.
- 研究了共感染相互作用如何影响宿主寄生虫接触率和在资源提供场景下的易感性.
主要成果:
- 资源配置对寄生虫流行病学的影响可以通过宿主内共感染动态来调解或逆转.
- 供应可以通过减少线虫负担来增加微寄生虫的流行,但如果增加宿主与感染阶段的接触,可以减少它.
结论:
- 宿主内部的共感染相互作用对于理解资源配置对寄生虫动态的复杂影响至关重要.
- 强调需要实验设计,分离影响多寄生虫系统中共感染寄生虫动态的因素.
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