高分辨率的环境和与宿主相关的因素影响寻找Ixodes scapularis在它们的北方范围边缘
Kirsten E Crandall1,2,3, Virginie Millien2,3, Jeremy T Kerr1
1Department of Biology University of Ottawa Ottawa Ontario Canada.
Ecology and evolution
|February 22, 2024
概括
气候变暖在加拿大扩大了种群. 环境和哺乳动物宿主数据显示,降水和哺乳动物多样性是黑腿 (Ixodes scapularis) 繁多的关键驱动因素,影响疾病风险.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 流行病学 流行病学
背景情况:
- 气候变暖正在推动加拿大的虫种群及其宿主向极地扩展范围.
- 无生物因素 (温度,降雨,雪) 和生物因素 (哺乳动物宿主数量/多样性) 影响的数量和疾病风险.
研究的目的:
- 评估非生物和生物因素对探索Ixodes scapularis在加拿大安大略省和北克省丰富的综合影响.
- 确定群动态和地理分布的关键驱动因素.
主要方法:
- 集成的高分辨率环境数据 (遥感,气象塔) 与对哺乳动物宿主的活跃现场监测数据.
- 采用了通用的添加模型来评估环境和宿主因素对Ixodes scapularis丰度的相对重要性.
主要成果:
- 无论是非生物的还是生物的因素都显著地影响了Ixodes scapularis的丰富性.
- 在繁多,月平均降水量和哺乳动物物种丰富之间观察到积极的关系.
- 在 abundance和积雪之间发现了负线性关系;白足小鼠 abundance没有影响.
结论:
- 结合的非生物和生物因素是 Ixodes scapularis 丰度的关键驱动因素.
- 未来对种群和传播病原体的评估需要综合宿主监测和高分辨率的环境数据.
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