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Title: Alpha-, beta-, and gamma-diversity of bacteria varies across habitats

Abstract

Bacteria are essential parts of ecosystems and are the most diverse organisms on the planet. Yet, we still do not know which habitats support the highest diversity of bacteria across multiple scales. We analyzed alpha-, beta-, and gamma-diversity of bacterial assemblages using 11,680 samples compiled by the Earth Microbiome Project. We found that soils contained the highest bacterial richness within a single sample (alpha-diversity), but sediment assemblages displayed the highest gamma-diversity. Sediment, biofilms/mats, and inland water exhibited the most variation in community composition among geographic locations (beta-diversity). Within soils, agricultural lands, hot deserts, grasslands, and shrublands contained the highest richness, while forests, cold deserts, and tundra biomes consistently harbored fewer bacterial species. Surprisingly, agricultural soils encompassed similar levels of beta-diversity as other soil biomes. These patterns were robust to the alpha- and beta- diversity metrics used and the taxonomic binning approach. Overall, the results support the idea that spatial environmental heterogeneity is an important driver of bacterial diversity.

Authors:
ORCiD logo; ;
Publication Date:
Research Org.:
Univ. of California, Irvine, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1664574
Alternate Identifier(s):
OSTI ID: 1706717
Grant/Contract Number:  
SC0016410
Resource Type:
Published Article
Journal Name:
PLoS ONE
Additional Journal Information:
Journal Name: PLoS ONE Journal Volume: 15 Journal Issue: 9; Journal ID: ISSN 1932-6203
Publisher:
Public Library of Science
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES

Citation Formats

Walters, Kendra E., Martiny, Jennifer B. H., and Nabout, ed., João Carlos. Alpha-, beta-, and gamma-diversity of bacteria varies across habitats. United States: N. p., 2020. Web. https://doi.org/10.1371/journal.pone.0233872.
Walters, Kendra E., Martiny, Jennifer B. H., & Nabout, ed., João Carlos. Alpha-, beta-, and gamma-diversity of bacteria varies across habitats. United States. https://doi.org/10.1371/journal.pone.0233872
Walters, Kendra E., Martiny, Jennifer B. H., and Nabout, ed., João Carlos. Wed . "Alpha-, beta-, and gamma-diversity of bacteria varies across habitats". United States. https://doi.org/10.1371/journal.pone.0233872.
@article{osti_1664574,
title = {Alpha-, beta-, and gamma-diversity of bacteria varies across habitats},
author = {Walters, Kendra E. and Martiny, Jennifer B. H. and Nabout, ed., João Carlos},
abstractNote = {Bacteria are essential parts of ecosystems and are the most diverse organisms on the planet. Yet, we still do not know which habitats support the highest diversity of bacteria across multiple scales. We analyzed alpha-, beta-, and gamma-diversity of bacterial assemblages using 11,680 samples compiled by the Earth Microbiome Project. We found that soils contained the highest bacterial richness within a single sample (alpha-diversity), but sediment assemblages displayed the highest gamma-diversity. Sediment, biofilms/mats, and inland water exhibited the most variation in community composition among geographic locations (beta-diversity). Within soils, agricultural lands, hot deserts, grasslands, and shrublands contained the highest richness, while forests, cold deserts, and tundra biomes consistently harbored fewer bacterial species. Surprisingly, agricultural soils encompassed similar levels of beta-diversity as other soil biomes. These patterns were robust to the alpha- and beta- diversity metrics used and the taxonomic binning approach. Overall, the results support the idea that spatial environmental heterogeneity is an important driver of bacterial diversity.},
doi = {10.1371/journal.pone.0233872},
journal = {PLoS ONE},
number = 9,
volume = 15,
place = {United States},
year = {2020},
month = {9}
}

Journal Article:
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https://doi.org/10.1371/journal.pone.0233872

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