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Sökning: WFRF:(Bruesewitz Denise A.) > (2023) > Response of lake me...

Response of lake metabolism to catchment inputs inferred using high-frequency lake and stream data from across the northern hemisphere

Corman, Jessica R. (författare)
School of Natural Resources, University of Nebraska–Lincoln, NE, Lincoln, United States
Zwart, Jacob A. (författare)
Integrated Information Dissemination Division, U.S. Geological Survey, CA, San Francisco, United States
Klug, Jennifer (författare)
Biology Department, Fairfield University, CT, Fairfield, United States
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Bruesewitz, Denise A. (författare)
Environmental Studies Department, Colby College, ME, Waterville, United States
de Eyto, Elvira (författare)
Fisheries Ecosystems Advisory Service, Marine Institute, Newport, Co. Mayo, Ireland
Klaus, Marcus (författare)
Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management
Knoll, Lesley B. (författare)
Department of Biology, Miami University, OH, Oxford, United States
Rusak, James A. (författare)
Dorset Environmental Science Centre, Ontario Ministry of the Environment, Conservation and Parks, ON, Dorset, Canada; Biology Department, Queen's University, ON, Kingston, Canada
Vanni, Michael J. (författare)
Department of Biology, Miami University, OH, Oxford, United States
Alfonso, María Belén (författare)
Research Institute for Applied Mechanics, Kyushu University, Fukuoka Prefecture, Kasuga, Japan
Fernandez, Rocio Luz (författare)
National Scientific and Technical Research Council (CONICET), Santa Fe, Argentina
Yao, Huaxia (författare)
Inland Waters Unit, Ontario Ministry of the Environment, Conservation and Parks, ON, Dorset, Canada
Austnes, Kari (författare)
Section for Catchment Biogeochemistry, Norwegian Institute for Water Research, Oslo, Norway
Couture, Raoul-Marie (författare)
Department of Chemistry, Centre d'Études Nordiques, Université Laval, QC, Quebec, Canada
de Wit, Heleen A. (författare)
Section for Catchment Biogeochemistry, Norwegian Institute for Water Research, Oslo, Norway
Karlsson, Jan, 1974- (författare)
Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
Laas, Alo (författare)
Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
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School of Natural Resources, University of Nebraska–Lincoln, NE, Lincoln, United States Integrated Information Dissemination Division, US. Geological Survey, CA, San Francisco, United States (creator_code:org_t)
 
John Wiley & Sons, 2023
2023
Engelska.
Ingår i: Limnology and Oceanography. - : John Wiley & Sons. - 0024-3590 .- 1939-5590. ; 68:12, s. 2617-2631
Relaterad länk:
https://doi.org/10.1...
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https://urn.kb.se/re...
https://doi.org/10.1...
https://res.slu.se/i...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • In lakes, the rates of gross primary production (GPP), ecosystem respiration (R), and net ecosystem production (NEP) are often controlled by resource availability. Herein, we explore how catchment vs. within lake predictors of metabolism compare using data from 16 lakes spanning 39°N to 64°N, a range of inflowing streams, and trophic status. For each lake, we combined stream loads of dissolved organic carbon (DOC), total nitrogen (TN), and total phosphorus (TP) with lake DOC, TN, and TP concentrations and high frequency in situ monitoring of dissolved oxygen. We found that stream load stoichiometry indicated lake stoichiometry for C : N and C : P (r2 = 0.74 and r2 = 0.84, respectively), but not for N : P (r2 = 0.04). As we found a strong positive correlation between TN and TP, we only used TP in our statistical models. For the catchment model, GPP and R were best predicted by DOC load, TP load, and load N : P (R2 = 0.85 and R2 = 0.82, respectively). For the lake model, GPP and R were best predicted by TP concentrations (R2 = 0.86 and R2 = 0.67, respectively). The inclusion of N : P in the catchment model, but not the lake model, suggests that both N and P regulate metabolism and that organisms may be responding more strongly to catchment inputs than lake resources. Our models predicted NEP poorly, though it is unclear why. Overall, our work stresses the importance of characterizing lake catchment loads to predict metabolic rates, a result that may be particularly important in catchments experiencing changing hydrologic regimes related to global environmental change.

Ämnesord

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
NATURVETENSKAP  -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Ecology (hsv//eng)

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