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Widespread diminish...
Widespread diminishing anthropogenic effects on calcium in freshwaters
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- Weyhenmeyer, Gesa A. (author)
- Uppsala universitet,Limnologi
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- Hartmann, Jens (author)
- Univ Hamburg, Ctr Earth Syst Res & Sustainabil CEN, Inst Geol, Bundesstr 55, D-20146 Hamburg, Germany
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- Hessen, Dag O. (author)
- Univ Oslo, CBA, Dept Biosci, Box 1066, N-0316 Blindern, Norway
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- Kopacek, Jiri (author)
- CAS, Biol Ctr, Inst Hydrobiol, Na Sadkach 7, Ceske Budejovice 37005, Czech Republic
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- Hejzlar, Josef (author)
- CAS, Biol Ctr, Inst Hydrobiol, Na Sadkach 7, Ceske Budejovice 37005, Czech Republic
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- Jacquet, Stephan (author)
- INRA CARRTEL, 75 Bis Ave Corzent, F-74203 Thonon Les Bains, CX, France
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- Hamilton, Stephen K. (author)
- Michigan State Univ, Kellogg Biol Stn, Hickory Corners, MI 49060 USA;Michigan State Univ, Dept Integrat Biol, Hickory Corners, MI 49060 USA;Cary Inst Ecosyst Studies, Millbrook, NY 12545 USA
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- Verburg, Piet (author)
- Natl Inst Water & Atmospher Res, Hamilton, New Zealand
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- Leach, Taylor H. (author)
- Rensselaer Polytech Inst, Dept Biol Sci, Troy, NY 12180 USA
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- Schmid, Martin (author)
- Eawag Swiss Fed Inst Aquat Sci & Technol, Surface Waters Res & Management, Seestr 79, CH-6047 Kastanienbaum, Switzerland
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- Flaim, Giovanna (author)
- Fdn Edmund Mach, Res & Innovat Ctr, Dept Sustainable Agroecosyst & Bioresources, Via E Mach 1, I-38010 San Michele All Adige, Italy
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- Nöges, Tiina (author)
- Estonian Univ Life Sci, Inst Agr & Environm Sci, Kreutzwaldi 5, EE-51014 Tartu, Estonia
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- Nöges, Peeter (author)
- Estonian Univ Life Sci, Inst Agr & Environm Sci, Kreutzwaldi 5, EE-51014 Tartu, Estonia
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- Wentzky, Valerie C. (author)
- Helmholtz Ctr Environm Res, Dept Lake Res, Magdeburg, Germany;Helmholtz Ctr Environm Res, Dept Aquat Ecosyst Anal, Magdeburg, Germany
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- Rogora, Michela (author)
- CNR Water Res Inst, Lgo Tonolli 50, I-28922 Verbania, Italy
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- Rusak, James A. (author)
- Dorset Environm Sci Ctr, Dorset, ON P0A 1E0, Canada
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- Kosten, Sarian (author)
- Radboud Univ Nijmegen, Inst Water & Wetland Res, Dept Aquat Ecol & Environm Biol, NL-6525 AJ Nijmegen, Netherlands
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- Paterson, Andrew M. (author)
- Dorset Environm Sci Ctr, Dorset, ON P0A 1E0, Canada
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- Teubner, Katrin (author)
- Univ Vienna, Dept Limnol & Biol Oceanog, Althanstr 14, A-1090 Vienna, Austria
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- Higgins, Scott N. (author)
- IISD Expt Lakes Area Inc, 111 Lombard Ave Suite 325, Winnipeg, MB R3B 0T5, Canada
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- Lawrence, Gregory (author)
- US Geol Survey, NewYork Water Sci Ctr, Troy, NY 12180 USA
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- Kangur, Kulli (author)
- Estonian Univ Life Sci, Inst Agr & Environm Sci, Ctr Limnol, EE-51117 Tartu, Estonia
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- Kokorite, Ilga (author)
- Univ Latvia, Inst Biol, Miera Str 3, LV-2169 Salaspils, Latvia
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- Cerasino, Leonardo (author)
- Fdn Edmund Mach, Res & Innovat Ctr, Dept Sustainable Agroecosyst & Bioresources, Via E Mach 1, I-38010 San Michele All Adige, Italy
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- Funk, Clara (author)
- US Environm Protect Agcy, Clean Air Markets Div, Washington, DC 20460 USA
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- Harvey, Rebecca (author)
- Vermont Dept Environm Serv, 1 Natl Life Dr, Montpelier, VT USA
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- Moatar, Florentina (author)
- Irstea, 5 Rue Doua, F-69625 Villeurbanne, France
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- de Wit, Heleen A. (author)
- Norwegian Inst Water Res, Gaustadalleen 23, NO-0349 Oslo, Norway
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- Zechmeister, Thomas (author)
- Biol Stn Lake Neusiedl, A-7142 Illmitz, Austria
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(creator_code:org_t)
- 2019-07-18
- 2019
- English.
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In: Scientific Reports. - : NATURE PUBLISHING GROUP. - 2045-2322. ; 9
- Related links:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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Abstract
Subject headings
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- 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 carbonate alkalinity concentrations have increased or remained constant, while Ca concentrations have rapidly declined towards or even below pre-industrial conditions as a consequence of recovery from anthropogenic acidification. Thus, a paradoxical outcome of the successful remediation of acid deposition is a globally widespread freshwater Ca concentration decline towards critically low levels for many aquatic organisms.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Weyhenmeyer, Ges ...
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Hartmann, Jens
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Hessen, Dag O.
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Kopacek, Jiri
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Hejzlar, Josef
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Jacquet, Stephan
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show more...
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Hamilton, Stephe ...
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Verburg, Piet
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Leach, Taylor H.
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Schmid, Martin
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Flaim, Giovanna
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Nöges, Tiina
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Nöges, Peeter
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Wentzky, Valerie ...
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Rogora, Michela
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Rusak, James A.
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Kosten, Sarian
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Paterson, Andrew ...
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Teubner, Katrin
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Higgins, Scott N ...
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Lawrence, Gregor ...
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Kangur, Kulli
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Kokorite, Ilga
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Cerasino, Leonar ...
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Funk, Clara
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Harvey, Rebecca
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Moatar, Florenti ...
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de Wit, Heleen A ...
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Zechmeister, Tho ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
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Scientific Repor ...
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Uppsala University