息地丧失对外寄生虫相关的细菌微生物群的级联影响
Kelly A Speer1,2,3, Tiago Souto Martins Teixeira4, Alexis M Brown5
1Richard Gilder Graduate School, American Museum of Natural History, New York, NY, USA. speerk@si.edu.
ISME communications
|November 8, 2023
概括
息地丧失影响蝙蝠的微生物群,其中寄生虫物种是主要的驱动因素. 更小的息地碎片改变了细菌网络,可能会影响宿主-寄生虫相互作用.
科学领域:
- 生态生态学 生态生态学
- 微生物生态学 微生物生态学
- 保护生物学 保护生物学
背景情况:
- 众所周知,息地碎片化会影响植物和动物群落,但它对宿主相关微生物群落的影响不太清楚.
- 假设寄生虫进化和生态驱动其微生物群比环境因素更需要进一步测试.
研究的目的:
- 调查更广泛的环境因素对有义务外寄生虫蝙蝠微生物群的影响.
- 测试息地特征是否塑造了寄生虫相关的微生物群落.
主要方法:
- 16S rRNA V4区域的高通量测序被用来描述222只蝙蝠 (Streblidae和Nycteribiidae) 的微生物组.
- 蝙蝠从巴西大西洋森林的10个息地碎片中收集了6个物种的155只蝙蝠.
主要成果:
- 寄生虫物种身份是微生物组合的主要决定因素.
- 减少息地碎片面积,但不是隔离,与增加的细菌协会网络连接性和中间中心性相关.
- 寄生虫社区多样性的变化推动了这些网络变化.
结论:
- 息地丧失可能对宏观和微生物群落产生级联影响.
- 细菌网络拓受到息地斑块面积的影响,寄生虫对环境变化有特定物种的反应.
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