Vulnerability and resistance in the spatial heterogeneity of soil microbial communities under resource additions
Spatial heterogeneity in composition and function enables ecosystems to supply diverse services. For soil microbes and the ecosystem functions they catalyze, whether such heterogeneity can be maintained in the face of altered resource inputs is uncertain. In a 50-ha northern California grassland wit...
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| Veröffentlicht in: | Proceedings of the National Academy of Sciences - PNAS 2020-03, Vol.117 (13), p.7263-7270 |
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| creator | Gravuer, Kelly Eskelinen, Anu Winbourne, Joy B. Harrison, Susan P. |
| description | Spatial heterogeneity in composition and function enables ecosystems to supply diverse services. For soil microbes and the ecosystem functions they catalyze, whether such heterogeneity can be maintained in the face of altered resource inputs is uncertain. In a 50-ha northern California grassland with a mosaic of plant communities generated by different soil types, we tested how spatial variability in microbial composition and function changed in response to nutrient and water addition. Fungal composition lost some of its spatial variability in response to nutrient addition, driven by decreases in mutualistic fungi and increases in antagonistic fungi that were strongest on the least fertile soils, where mutualists were initially most frequent and antagonists initially least frequent. Bacterial and archaeal community composition showed little change in their spatial variability with resource addition. Microbial functions related to nitrogen cycling showed increased spatial variability under nutrient, and sometimes water, additions, driven in part by accelerated nitrification on the initially more-fertile soils. Under anthropogenic changes such as eutrophication and altered rainfall, these findings illustrate the potential for significant changes in ecosystem-level spatial heterogeneity of microbial functions and communities. |
| doi_str_mv | 10.1073/pnas.1908117117 |
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For soil microbes and the ecosystem functions they catalyze, whether such heterogeneity can be maintained in the face of altered resource inputs is uncertain. In a 50-ha northern California grassland with a mosaic of plant communities generated by different soil types, we tested how spatial variability in microbial composition and function changed in response to nutrient and water addition. Fungal composition lost some of its spatial variability in response to nutrient addition, driven by decreases in mutualistic fungi and increases in antagonistic fungi that were strongest on the least fertile soils, where mutualists were initially most frequent and antagonists initially least frequent. Bacterial and archaeal community composition showed little change in their spatial variability with resource addition. Microbial functions related to nitrogen cycling showed increased spatial variability under nutrient, and sometimes water, additions, driven in part by accelerated nitrification on the initially more-fertile soils. 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For soil microbes and the ecosystem functions they catalyze, whether such heterogeneity can be maintained in the face of altered resource inputs is uncertain. In a 50-ha northern California grassland with a mosaic of plant communities generated by different soil types, we tested how spatial variability in microbial composition and function changed in response to nutrient and water addition. Fungal composition lost some of its spatial variability in response to nutrient addition, driven by decreases in mutualistic fungi and increases in antagonistic fungi that were strongest on the least fertile soils, where mutualists were initially most frequent and antagonists initially least frequent. Bacterial and archaeal community composition showed little change in their spatial variability with resource addition. Microbial functions related to nitrogen cycling showed increased spatial variability under nutrient, and sometimes water, additions, driven in part by accelerated nitrification on the initially more-fertile soils. Under anthropogenic changes such as eutrophication and altered rainfall, these findings illustrate the potential for significant changes in ecosystem-level spatial heterogeneity of microbial functions and communities.</description><subject>Antagonists</subject><subject>Anthropogenic factors</subject><subject>Archaea - physiology</subject><subject>Bacteria</subject><subject>Biological Sciences</subject><subject>Community composition</subject><subject>Composition</subject><subject>Conservation of Natural Resources - methods</subject><subject>Demography - methods</subject><subject>Ecosystem</subject><subject>Ecosystems</subject><subject>Environmental changes</subject><subject>Eutrophication</subject><subject>Fungi</subject><subject>Fungi - physiology</subject><subject>Grasslands</subject><subject>Heterogeneity</subject><subject>Microbial activity</subject><subject>Microbiota - physiology</subject><subject>Microorganisms</subject><subject>Multidisciplinary Sciences</subject><subject>Nitrification</subject><subject>Nitrogen - analysis</subject><subject>Nitrogen cycle</subject><subject>Nutrient cycles</subject><subject>Nutrients</subject><subject>Plant communities</subject><subject>Plant populations</subject><subject>Rain</subject><subject>Rainfall</subject><subject>Science & Technology</subject><subject>Science & Technology - Other Topics</subject><subject>Soil</subject><subject>Soil fertility</subject><subject>Soil Microbiology</subject><subject>Soil microorganisms</subject><subject>Soil testing</subject><subject>Soil types</subject><subject>Soils</subject><subject>Spatial heterogeneity</subject><subject>Symbiosis</subject><subject>Variability</subject><subject>Water</subject><issn>0027-8424</issn><issn>1091-6490</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>AOWDO</sourceid><sourceid>EIF</sourceid><recordid>eNqNkc2L1TAUxYMoznN07UopuJTO5KtJuhHk4RcMuFG3IU1v5uXRJjVJlfnvTXnjU3dCICH3d869yUHoOcFXBEt2vQSTr0iPFSGyrgdoR3BPWsF7_BDtMKayVZzyC_Qk5yPGuO8UfowuGCWi63i3Q8u3dQqQzOAnX-4aE8YmQfa5mGCh8aEpB2jyYoo3U3OAAineQoCNja7J0U_N7G2Kw1a3cZ7X4IuH3KxhhLR5xTVVJzOO9T6G_BQ9cmbK8Ox-v0Rf37_7sv_Y3nz-8Gn_9qa1nLPSWiW4kN1A7OAklZ1iticdl0xQRhwMvROM9G50lnRKqnEURlrBBgsGnMKOXaI3J99lHWYYLYSSzKSX5GeT7nQ0Xv9bCf6gb-MPLQmjVLJq8OreIMXvK-Sij_Upoc6sKVOSK8k6WqnrE1X_IOcE7tyBYL1FpLeI9J-IquLl34Od-d-ZVOD1CfgJQ3TZeqhRnLEaYm1LlCL1xEWl1f_Te1_MlsI-rqFU6YuT9JhLTGcNFT3tef3qX3ewu2o</recordid><startdate>20200331</startdate><enddate>20200331</enddate><creator>Gravuer, Kelly</creator><creator>Eskelinen, Anu</creator><creator>Winbourne, Joy B.</creator><creator>Harrison, Susan P.</creator><general>National Academy of Sciences</general><general>Natl Acad Sciences</general><scope>AOWDO</scope><scope>BLEPL</scope><scope>DTL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QR</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TK</scope><scope>7TM</scope><scope>7TO</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-2567-658X</orcidid><orcidid>https://orcid.org/0000-0003-1707-5263</orcidid><orcidid>https://orcid.org/0000-0001-6278-2181</orcidid></search><sort><creationdate>20200331</creationdate><title>Vulnerability and resistance in the spatial heterogeneity of soil microbial communities under resource additions</title><author>Gravuer, Kelly ; 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Microbial functions related to nitrogen cycling showed increased spatial variability under nutrient, and sometimes water, additions, driven in part by accelerated nitrification on the initially more-fertile soils. Under anthropogenic changes such as eutrophication and altered rainfall, these findings illustrate the potential for significant changes in ecosystem-level spatial heterogeneity of microbial functions and communities.</abstract><cop>WASHINGTON</cop><pub>National Academy of Sciences</pub><pmid>32165545</pmid><doi>10.1073/pnas.1908117117</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-2567-658X</orcidid><orcidid>https://orcid.org/0000-0003-1707-5263</orcidid><orcidid>https://orcid.org/0000-0001-6278-2181</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Antagonists Anthropogenic factors Archaea - physiology Bacteria Biological Sciences Community composition Composition Conservation of Natural Resources - methods Demography - methods Ecosystem Ecosystems Environmental changes Eutrophication Fungi Fungi - physiology Grasslands Heterogeneity Microbial activity Microbiota - physiology Microorganisms Multidisciplinary Sciences Nitrification Nitrogen - analysis Nitrogen cycle Nutrient cycles Nutrients Plant communities Plant populations Rain Rainfall Science & Technology Science & Technology - Other Topics Soil Soil fertility Soil Microbiology Soil microorganisms Soil testing Soil types Soils Spatial heterogeneity Symbiosis Variability Water |
| title | Vulnerability and resistance in the spatial heterogeneity of soil microbial communities under resource additions |
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