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现在是时候了:小哺乳动物群落和莱姆病的出现

V Millien^1,2, S S T Leo^3,4, S Turney^3,4

¹Redpath Museum, McGill University, Montréal, QC, H3A 0C4, Canada. virginie.millien@mcgill.ca.

Scientific reports

|September 4, 2023

概括

生物多样性的变化会影响疾病的传播. 在北克省,小型哺乳动物的宿主丰富,特别是白足老鼠,显著影响着子的莱姆病风险,这是气候变暖的一个问题.

科学领域:

生态生态学生态生态学
流行病学流行病学
气候变化研究气候变化研究

背景情况:

气候变暖可能会改变生物多样性,可能会调解疾病出现率.
了解生物多样性和疾病动态之间的联系对于预测和管理公共卫生风险至关重要.
莱姆病在北克南部越来越令人担忧,需要对其生态驱动因素进行研究.

研究的目的:

调查小哺乳动物宿主多样性和丰富性以及北克南部莱姆病风险之间的关系.
确定宿主群体的组成如何影响虫载体中Borrelia burgdorferi的流行和丰度.
评估气候变暖对这些生物多样性疾病动态的影响.

主要方法:

在北克南部进行了实地调查,以评估小型哺乳动物种群和感染率.
使用统计分析,将宿主丰度和多样性指标与的莱姆病风险指标相关联.
研究了这些关系的地理和时间变化.

主要成果:

小哺乳动物宿主的总体丰富度和白足老鼠 (Peromyscus leucopus) 的相对丰富度都是子中莱姆病风险的显著预测因素.
较高的P. leucopus丰度与增加的Borrelia burgdorferi感染丰度和媒介的流行率有关.
这些关系的强度和性质在研究区域内的不同时间和地理位置上有所不同.

结论:

涉及小型哺乳动物组合的区域过程调节了莱姆病风险.
白足老鼠的丰富性是增加莱姆病风险的关键因素.
由于气候变暖而导致P. leucopus丰度的预计增加,引发了对该地区未来莱姆病出现的重大担忧.

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