基于预测性生态模型,对西藏高原气候变化下的Simulium equinum (Diptera: Simuliidae) 的潜在分布进行比较研究
Yunxiang Liu1,2, Sengen Lai1,2, Chuanji Li1,2
1State Key Laboratory of Plateau Ecology and Agriculture, Academy of Agricultural and Forestry Sciences, Qinghai University, Xining, Qinghai, China.
Journal of medical entomology
|October 17, 2025
概括
西藏高原的Simulium equinum分布受温度,降水和海拔高度的影响. 生态利基模型预测其在各种气候场景下的范围变化,有助于害虫控制策略.
科学领域:
- 生态建模 生态建模
- 生物地理学 生物地理学 生物地理学
- 媒介性疾病生态学 媒介性疾病生态学
背景情况:
- 马 (Simulium equinum) 是一个重要的吸血昆虫和潜在的病原体载体.
- 了解其生态利基对于管理疾病传播风险至关重要.
研究的目的:
- 模拟西藏高原Simulium equinum在西藏高原的潜在分布.
- 在古气候,当前和未来气候场景下比较模型预测.
- 确定关键的环境驱动因素,并将分布与人类活动和生态系统质量相关联.
主要方法:
- 采用单个物种生态利基模型 (MaxEnt) 和整体模型 (BIOMOD2).
- 利用古气候,当前和未来的气候数据进行分布建模.
- 使用Kuenm和ENMeval套件评估模型准确性.
主要成果:
- 温度,降水和海拔是主要的分布因素 (>95%的贡献).
- 目前和未来的场景预测西藏高原东北部的分布集中,与人类活动和生态系统质量相关.
- 古气候场景显示模型分歧,从恒向北转移到山,支持冰川避难所假设.
结论:
- 生态利基模型为了解Simulium equinum动态提供了基础.
- 这些发现支持划定控制区和评估西藏高原的淡水生态系统.
- 该物种的分布中心随着时间的推移向北移动,这表明它适应了气候变化.
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