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Local and regional drivers of headwater streams metabolism : insights from the first AIL collaborative project

Pastor, Ada (författare)
Univ Barcelona, Fac Biol, Dept Biol Evolutiva Ecol & Ciencies Ambientals, Av Diagonal 643, E-08028 Barcelona, Spain.;Catalan Inst Water Res ICRA, Emili Grahit 101, Girona 17003, Spain.
Lupon, Anna (författare)
Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management,Swedish Univ Agr Sci SLU, Dept Forest Ecol & Management, S-90183 Umea, Sweden.
Gomez-Gener, Lluis (författare)
Univ Barcelona, Fac Biol, Dept Biol Evolutiva Ecol & Ciencies Ambientals, Av Diagonal 643, E-08028 Barcelona, Spain.
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Rodriguez-Castillo, Tamara (författare)
Univ Cantabria Avda, Environm Hydraul Inst, Isabel Torres 15,Parque Cientif Tecnol Cantabria, Santander 39011, Spain.
Abril, Meritxell (författare)
Univ Barcelona, Fac Biol, Dept Biol Evolutiva Ecol & Ciencies Ambientals, Av Diagonal 643, E-08028 Barcelona, Spain.
Arce, Maria Isabel (författare)
Leibniz Inst Freshwater Ecol & Inland Fisheries I, Muggelseedamm 310, D-12587 Berlin, Germany.
Aristi, Ibon (författare)
Univ Basque Country, Dept Plant Biol & Ecol, Lab Stream Ecol, POB 644, Bilbao 48080, Spain.
Arroita, Maite (författare)
Univ Basque Country, Dept Plant Biol & Ecol, Lab Stream Ecol, POB 644, Bilbao 48080, Spain.
Bravo, Andrea Garcia (författare)
Uppsala universitet,Limnologi
Catalán, Núria, 1985- (författare)
Uppsala universitet,Limnologi,Catalan Inst Water Res ICRA, Emili Grahit 101, Girona 17003, Spain.
del Campo, Ruben (författare)
Univ Murcia, Fac Biol, Dept Ecol & Hydrol, Reg Campus Int Excellence Campus Mare Nostrum, E-30100 Murcia, Spain.
Pere Casas-Ruiz, Joan (författare)
Catalan Inst Water Res ICRA, Emili Grahit 101, Girona 17003, Spain.
Estevez, Edurne (författare)
Univ Cantabria Avda, Environm Hydraul Inst, Isabel Torres 15,Parque Cientif Tecnol Cantabria, Santander 39011, Spain.
Fernandez, Diego (författare)
Univ Koblenz Landau, Inst Environm Sci, Fortstr, D-776829 Landau, Germany.
Fillol, Mireia (författare)
Catalan Inst Water Res ICRA, Emili Grahit 101, Girona 17003, Spain.
Flores, Lorea (författare)
INRA, UMR 1224, Ecol Comportementale & Biol Populat Poissons, Aquapole, F-64310 St Pee Sur Nivelle, France.
Freixa, Anna (författare)
Catalan Inst Water Res ICRA, Emili Grahit 101, Girona 17003, Spain.;Univ Girona, Fac Ciencies, Inst Aquat Ecol, Campus Montilivi S-N, Girona 17071, Spain.
Gimenez-Grau, Pau (författare)
Ctr Ecol Res & Forestry Applicat CREAF, Cerdanyola Del Valles 08193, Spain.
Maria Gonzalez-Ferreras, Alexia (författare)
Univ Cantabria Avda, Environm Hydraul Inst, Isabel Torres 15,Parque Cientif Tecnol Cantabria, Santander 39011, Spain.
Hernandez-del Amo, Elena (författare)
Univ Girona, Fac Ciencies, Inst Aquat Ecol, Campus Montilivi S-N, Girona 17071, Spain.
Martin, Eduardo J. (författare)
Swiss Fed Inst Aquat Sci & Technol EAWAG, CH-8600 Dubendorf, Switzerland.
Martinez, Aingeru (författare)
Univ Basque Country, Dept Plant Biol & Ecol, Lab Stream Ecol, POB 644, Bilbao 48080, Spain.
Monroy, Silvia (författare)
Univ Basque Country, Dept Plant Biol & Ecol, Lab Stream Ecol, POB 644, Bilbao 48080, Spain.
Mora-Gomez, Juanita (författare)
Univ Girona, Fac Ciencies, Inst Aquat Ecol, Campus Montilivi S-N, Girona 17071, Spain.
Palacin-Lizarbe, Carlos (författare)
Ctr Ecol Res & Forestry Applicat CREAF, Cerdanyola Del Valles 08193, Spain.
Pereda, Olatz (författare)
Univ Basque Country, Dept Plant Biol & Ecol, Lab Stream Ecol, POB 644, Bilbao 48080, Spain.
Poblador, Silvia (författare)
Univ Barcelona, Fac Biol, Dept Biol Evolutiva Ecol & Ciencies Ambientals, Av Diagonal 643, E-08028 Barcelona, Spain.
Rasines-Ladero, Ruben (författare)
Univ Alcala De Henares, IMDEA Water Inst, Av Punto Com 2,Sci Technol Pk, Alcala De Henares 28805, Spain.
Reyes, Marta (författare)
Swiss Fed Inst Aquat Sci & Technol EAWAG, CH-8600 Dubendorf, Switzerland.
Rodriguez-Lozano, Pablo (författare)
Univ Barcelona, Fac Biol, Dept Biol Evolutiva Ecol & Ciencies Ambientals, Av Diagonal 643, E-08028 Barcelona, Spain.;Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
Ruiz, Celia (författare)
IMDEA Natl Museum Nat Sci MNCN CSIC, Jose Gutierrez Abascal 2, Madrid 28006, Spain.
Sanpera-Calbet, Isis (författare)
Univ Barcelona, Fac Biol, Dept Biol Evolutiva Ecol & Ciencies Ambientals, Av Diagonal 643, E-08028 Barcelona, Spain.
Solagaistua, Libe (författare)
Univ Basque Country, Dept Plant Biol & Ecol, Lab Stream Ecol, POB 644, Bilbao 48080, Spain.
Tornero, Irene (författare)
Univ Girona, Fac Ciencies, Inst Aquat Ecol, Campus Montilivi S-N, Girona 17071, Spain.
Catalán, Núria, 1985- (författare)
Uppsala universitet,Limnologi,Catalan Inst Water Res ICRA, Emili Grahit 101, Girona 17003, Spain.
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Univ Barcelona, Fac Biol, Dept Biol Evolutiva Ecol & Ciencies Ambientals, Av Diagonal 643, E-08028 Barcelona, Spain;Catalan Inst Water Res ICRA, Emili Grahit 101, Girona 17003, Spain. Institutionen för skogens ekologi och skötsel (creator_code:org_t)
 
2017-05-15
2017
Engelska.
Ingår i: LIMNETICA. - : Asociacion Iberica de Limnologia. - 0213-8409 .- 1989-1806. ; 36:1, s. 67-85
Relaterad länk:
https://doi.org/10.2...
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https://uu.diva-port... (primary) (Raw object)
https://doi.org/10.2...
https://urn.kb.se/re...
https://doi.org/10.2...
https://res.slu.se/i...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Streams play a key role in the global biogeochemical cycles, processing material from adjacent terrestrial systems and transporting it downstream. However, the drivers of stream metabolism, especially those acting at broad spatial scales, are still not well understood. Moreover, stream metabolism can be affected by hydrological changes associated with seasonality, and thus, assessing the temporality of metabolic rates is a key question to understand stream function. This study aims to analyse the geographical and temporal patterns in stream metabolism and to identify the main drivers regulating the whole ecosystem metabolic rates at local and regional scales. Using a coordinated distributed experiment, we studied ten headwaters streams located across five European ecoregions during summer and fall 2014. We characterized the magnitude and variability of gross primary production (GPP) and ecosystem respiration (ER) with the open-channel method. Moreover, we examined several climatic, geographical, hydrological, morphological, and physicochemical variables that can potentially control stream metabolic rates. Daily rates of stream metabolism varied considerately across streams, with GPP and ER ranging from 0.06 to 4.33 g O-2 m(-2) d(-1) and from 0.72 to 14.20 g O-2 m(-2) d(-1), respectively. All streams were highly heterotrophic (P/R < 1), except the southernmost one. We found that the drier climates tended to have the highest GPP, while humid regions presented the highest ER. Between the sampling periods no statistical differences were found. Partial-least squares models (PLS) explained similar to 80% of the variance in GPP and ER rates across headwater streams and included both local and regional variables. Rates of GPP varied primarily in response to the local variables, such as streambed substrate and stream water temperature. In contrast, regional variables, such as the mean annual temperature or the land use of the catchment, had more relevance to explain ER. Overall, our results highlight that stream metabolism depends on both local and regional drivers and show the positive experience of a young network of researchers to assess scientific challenges across large-scale geographic areas.

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 (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences (hsv//eng)

Nyckelord

Gross primary production
ecosystem respiration
functioning
ecoregions
season
coordinated distributed experiment

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

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