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Widespread diminishing anthropogenic effects on calcium in freshwaters
- Source :
- Scientific Reports, Vol 9, Iss 1, Pp 1-10 (2019), Scientific Reports, Scientific Reports, Nature Publishing Group, 2019, 9 (1), ⟨10.1038/s41598-019-46838-w⟩, Scientific Reports 1 (9), . (2019), Scientific reports (Nature Publishing Group) 9 (2019). doi:10.1038/s41598-019-46838-w, info:cnr-pdr/source/autori:Weyhenmeyer, Gesa A.; Hartmann, Jens; Hessen, Dag O.; Kopá?ek, Ji?í; Hejzlar, Josef; Jacquet, Stéphan; Hamilton, Stephen K.; Verburg, Piet; Leach, Taylor H.; Schmid, Martin; Flaim, Giovanna; Nõges, Tiina; Nõges, Peeter; Wentzky, Valerie C.; Rogora, Michela; Rusak, James A.; Kosten, Sarian; Paterson, Andrew M.; Teubner, Katrin; Higgins, Scott N.; Lawrence, Gregory; Kangur, Külli; Kokorite, Ilga; Cerasino, Leonardo; Funk, Clara; Harvey, Rebecca; Moatar, Florentina; de Wit, Heleen A.; Zechmeister, Thomas/titolo:Widespread diminishing anthropogenic effects on calcium in freshwaters/doi:10.1038%2Fs41598-019-46838-w/rivista:Scientific reports (Nature Publishing Group)/anno:2019/pagina_da:/pagina_a:/intervallo_pagine:/volume:9, 9:10450
- Publication Year :
- 2019
- Publisher :
- Nature Publishing Group, 2019.
-
Abstract
- Calcium (Ca) is an essential element for almost all living organisms. Here, we examined global variation and controls of freshwater Ca concentrations, using 440 599 water samples from 43 184 inland water sites in 57 countries. We found that the global median Ca concentration was 4.0 mg L−1 with 20.7% of the water samples showing Ca concentrations ≤ 1.5 mg L−1 , a threshold considered critical for the survival of many Ca-demanding organisms. Spatially, freshwater Ca concentrations were strongly and proportionally linked to carbonate alkalinity, with the highest Ca and carbonate alkalinity in waters with a pH around 8.0 and decreasing in concentrations towards lower pH. However, on a temporal scale, by analyzing decadal trends in >200 water bodies since the 1980s, we observed a frequent decoupling between carbonate alkalinity and Ca concentrations, which we attributed mainly to the influence of anthropogenic acid deposition. As acid deposition has been ameliorated, in many freshwaters. Financial support was received from the Swedish Research Council (Grant No. 2016-04153), the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No. 643052 (C-CASCADES project), and from the Knut and Alice Wallenberg Foundation (KAW project). This work is part of the international Global Lake Ecological Observatory Network (GLEON). The work of J.H. is supported by the Deutsche Forschungsgemeinschaft (DFG) under Germany’s Excellence Strategy – EXC 20 2037 ‘Climate, Climatic Change, and Society’ – Project Number: 390683824, contribution to the Center for Earth System Research and Sustainability (CEN) of Universität Hamburg. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. We thank all data providers, listed in Supplementary Table 1. Financial support was received from the Swedish Research Council (Grant No. 2016-04153), the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No. 643052 (C-CASCADES project), and from the Knut and Alice Wallenberg Foundation (KAW project). This work is part of the international Global Lake Ecological Observatory Network (GLEON). The work of J.H. is supported by the Deutsche Forschungsgemeinschaft (DFG) under Germany’s Excellence Strategy – EXC 20 2037 ‘Climate, Climatic Change, and Society’ – Project Number: 390683824, contribution to the Center for Earth System Research and Sustainability (CEN) of Universität Hamburg. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. We thank all data providers, listed in Supplementary Table 1.
- Subjects :
- [SDV]Life Sciences [q-bio]
[SDE.MCG]Environmental Sciences/Global Changes
alkalinity
lcsh:Medicine
Article
Isolation
anthropogenic effects
Environmental impact
biogeochemistry
anthropique
Lake Geneva Abbreviations: BALO: Bdellovibrio and Like Organisms
Settore BIO/07 - ECOLOGIA
Element cycles
freshwaters
Bdellovibrio sp
freshwater
lcsh:Science
Ekologi
calcium
Ecology
BSA: Bovine Serum Albumin
lcsh:R
trend
eau douce
[SDU]Sciences of the Universe [physics]
Bacterial Predator
SDS: Sodium Dodecyl Sulfate
[SDE]Environmental Sciences
articles
Freshwater ecology
lcsh:Q
Preys
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 9
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.pmid.dedup....0bca0a7fe95f1af64abeafda4f89eeec