Global emergent responses of stream microbial metabolism to glacier shrinkage
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F24%3A10489043" target="_blank" >RIV/00216208:11310/24:10489043 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=3mUwtbOiRs" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=3mUwtbOiRs</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41561-024-01393-6" target="_blank" >10.1038/s41561-024-01393-6</a>
Alternative languages
Result language
angličtina
Original language name
Global emergent responses of stream microbial metabolism to glacier shrinkage
Original language description
Most cryospheric ecosystems are energy limited. How their energetics will respond to climate change remains largely unknown. This is particularly true for glacier-fed streams, which interface with the cryosphere and initiate some of Earth's largest river systems. Here, by studying resource stoichiometry and microbial energetics in 154 glacier-fed streams sampled by the Vanishing Glaciers project across Earth's major mountain ranges, we show that these ecosystems and their benthic microbiome are overall carbon and phosphorus limited. Threshold elemental ratios and low carbon use efficiencies (median: 0.15) modelled from extracellular enzymatic activities corroborate resource limitation in agreement with maintenance metabolism of benthic microorganisms. Space-for-time substitution analyses suggest that glacier shrinkage will stimulate benthic primary production in glacier-fed streams, thereby relieving microbial metabolism from carbon limitation. Concomitantly, we find that increasing streamwater temperature will probably stimulate microbial growth (temperature sensitivity: 0.62 eV). Consequently, elevated microbial demands for phosphorus, but diminishing inputs from subglacial sources, may intensify phosphorus limitation as glaciers shrink. Our study thus unveils a 'green transition' towards autotrophy in the world's glacier-fed streams, entailing shifts in the energetics of their microorganisms.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nature Geoscience
ISSN
1752-0894
e-ISSN
1752-0908
Volume of the periodical
17
Issue of the periodical within the volume
4
Country of publishing house
GB - UNITED KINGDOM
Number of pages
16
Pages from-to
309-"315.s9"
UT code for WoS article
001176400200001
EID of the result in the Scopus database
2-s2.0-85186474492