Exposure to airborne bacteria depends upon vertical stratification and vegetation complexity

Robinson, JM, Cando-Dumancela, C, Antwis, RE ORCID: https://orcid.org/0000-0002-8849-8194, Cameron, R, Liddicoat, C, Poudel, R, Weinstein, P and Breed, MF 2021, 'Exposure to airborne bacteria depends upon vertical stratification and vegetation complexity' , Scientific Reports, 11 (1) , p. 9516.

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Exposure to biodiverse aerobiomes supports human health, but it is unclear which ecological factors influence exposure. Few studies have investigated near-surface green space aerobiome dynamics, and no studies have reported aerobiome vertical stratification in different urban green spaces. We used columnar sampling and next generation sequencing of the bacterial 16S rRNA gene, combined with geospatial and network analyses to investigate urban green space aerobiome spatio-compositional dynamics. We show a strong effect of habitat on bacterial diversity and network complexity. We observed aerobiome vertical stratification and network complexity that was contingent on habitat type. Tree density, closer proximity, and canopy coverage associated with greater aerobiome alpha diversity. Grassland aerobiomes exhibited greater proportions of putative pathogens compared to scrub, and also stratified vertically. We provide novel insights into the urban ecosystem with potential importance for public health, whereby the possibility of differential aerobiome exposures appears to depend on habitat type and height in the airspace. This has important implications for managing urban landscapes for the regulation of aerobiome exposure.

Item Type: Article
Additional Information: ** From Springer Nature via Jisc Publications Router ** Licence for this article: http://creativecommons.org/licenses/by/4.0/ **Journal IDs: eissn 2045-2322 **Article IDs: publisher-id: s41598-021-89065-y; manuscript: 89065 **History: collection 12-2021; published 04-05-2021; online 04-05-2021; registration 21-04-2021; accepted 20-04-2021; submitted 06-01-2021
Schools: Schools > School of Environment and Life Sciences
Journal or Publication Title: Scientific Reports
Publisher: Nature Publishing Group UK
ISSN: 2045-2322
Related URLs:
Funders: Economic and Social Research Council (ESRC)
SWORD Depositor: Publications Router
Depositing User: Publications Router
Date Deposited: 05 May 2021 08:34
Last Modified: 16 Feb 2022 07:07
URI: https://usir.salford.ac.uk/id/eprint/60167

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