Socioeconomic drivers of the human microbiome footprint in global sewage

IF 6.1 2区 环境科学与生态学 Q2 ENGINEERING, ENVIRONMENTAL Frontiers of Environmental Science & Engineering Pub Date : 2024-08-01 DOI:10.1007/s11783-024-1889-z
Minglei Ren, Shaojuan Du, Jianjun Wang
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Abstract

The human microbiome leaves a legacy in sewage ecosystems, also referred to as the human sewage microbiomes (HSM), and could cause potential risk to human health and ecosystem service. However, these host-associated communities remain understudied, especially at a global scale, regarding microbial diversity, community composition and the underlying drivers. Here, we built a metagenomic read mapping-based framework to estimate HSM abundance in 243 sewage samples from 60 countries across seven continents. Our approach revealed that 95.03% of human microbiome species were identified from global sewage, demonstrating the potential of sewage as a lens to explore these human-associated microbes while bypassing the limitations of human privacy concerns. We identified significant biogeographic patterns for the HSM community, with species richness increasing toward high latitudes and composition showing a distance-decay relationship at a global scale. Interestingly, the HSM communities were mainly clustered by continent, with those from Europe and North America being separated from Asia and Africa. Furthermore, global HSM diversity was shown to be shaped by both climate and socioeconomic variables. Specifically, the average annual temperature was identified as the most important factor for species richness (33.18%), whereas economic variables such as country export in goods and services contributed the most to the variation in community composition (27.53%). Economic and other socioeconomic variables, such as education, were demonstrated to have direct effects on the HSM, as indicated by structural equation modeling. Our study provides the global biogeography of human sewage microbiomes and highlights the economy as an important socioeconomic factor driving host-associated community composition.

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全球污水中人类微生物组足迹的社会经济驱动因素
人类微生物组在污水生态系统中留下的遗产,也称为人类污水微生物组(HSM),可能对人类健康和生态系统服务造成潜在风险。然而,这些与宿主相关的群落在微生物多样性、群落组成和潜在驱动因素方面的研究仍然不足,尤其是在全球范围内。在此,我们建立了一个基于元基因组读图的框架,以估算来自七大洲 60 个国家的 243 个污水样本中 HSM 的丰度。我们的方法显示,95.03% 的人类微生物组物种是从全球污水中鉴定出来的,这表明污水作为一种透镜,具有探索这些与人类相关的微生物的潜力,同时还绕过了人类隐私问题的限制。我们发现了人类共生微生物群落的重要生物地理学模式,物种丰富度在高纬度地区不断增加,物种组成在全球范围内呈现出距离衰减关系。有趣的是,HSM 群落主要按大洲聚集,欧洲和北美洲的群落与亚洲和非洲的群落分开。此外,全球 HSM 多样性还受到气候和社会经济变量的影响。具体而言,年平均气温被认为是物种丰富度的最重要因素(33.18%),而国家商品和服务出口等经济变量对群落组成的变化贡献最大(27.53%)。结构方程模型表明,经济变量和其他社会经济变量(如教育)对 HSM 有直接影响。我们的研究提供了人类污水微生物群的全球生物地理学,并强调经济是驱动宿主相关群落组成的重要社会经济因素。
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来源期刊
Frontiers of Environmental Science & Engineering
Frontiers of Environmental Science & Engineering ENGINEERING, ENVIRONMENTAL-ENVIRONMENTAL SCIENCES
CiteScore
10.90
自引率
12.50%
发文量
988
审稿时长
6.1 months
期刊介绍: Frontiers of Environmental Science & Engineering (FESE) is an international journal for researchers interested in a wide range of environmental disciplines. The journal''s aim is to advance and disseminate knowledge in all main branches of environmental science & engineering. The journal emphasizes papers in developing fields, as well as papers showing the interaction between environmental disciplines and other disciplines. FESE is a bi-monthly journal. Its peer-reviewed contents consist of a broad blend of reviews, research papers, policy analyses, short communications, and opinions. Nonscheduled “special issue” and "hot topic", including a review article followed by a couple of related research articles, are organized to publish novel contributions and breaking results on all aspects of environmental field.
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