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A global experiment suggests climate warming will not accelerate litter decomposition in streams but might reduce carbon sequestration

Boyero, Luz and Pearson, Richard G. and Gessner, Mark O. and Barmuta, Leon A. and Ferreira, Verónica and Graça, Manuel A. S. and Dudgeon, David and Boulton, Andrew J. and Callisto, Marcos and Chauvet, Eric and Helson, Julie E. and Bruder, Andreas and Albariño, Ricardo J. and Yule, Catherine M. and Arunachalam, Muthukumarasamy and Davies, Judy N. and Figueroa, Ricardo and Flecker, Alexander S. and Ramírez, Alonso and Death, Russell G. and Iwata, Tomoya and Mathooko, Jude M. and Mathuriau, Catherine and Gonçalves, José F. Jr and Moretti, Marcelo S. and Jinggut, Tajang and Lamothe, Sylvain and M'Erimba, Charles and Ratnarajah, Lavenia and Schindler, Markus and Castela, José and Buria, Leonardo M. and Cornejo, Aydeé and Villanueva, Verónica Díaz and West, Derek C. A global experiment suggests climate warming will not accelerate litter decomposition in streams but might reduce carbon sequestration. (2011) Ecology Letters, 14 (3). 289-294. ISSN 1461-023X

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Official URL: http://dx.doi.org/10.1111/j.1461-0248.2010.01578.x

Abstract

The decomposition of plant litter is one of the most important ecosystem processes in the biosphere and is particularly sensitive to climate warming. Aquatic ecosystems are well suited to studying warming effects on decomposition because the otherwise confounding influence of moisture is constant. By using a latitudinal temperature gradient in an unprecedented global experiment in streams, we found that climate warming will likely hasten microbial litter decomposition and produce an equivalent decline in detritivore-mediated decomposition rates. As a result, overall decomposition rates should remain unchanged. Nevertheless, the process would be profoundly altered, because the shift in importance from detritivores to microbes in warm climates would likely increase CO2 production and decrease the generation and sequestration of recalcitrant organic particles. In view of recent estimates showing that inland waters are a significant component of the global carbon cycle, this implies consequences for global biogeochemistry and a possible positive climate feedback.

Item Type:Article
Additional Information:Thanks to Wiley. The definitive version is available at http://onlinelibrary.wiley.com/doi/10.1111/j.1461-0248.2010.01578.x/abstract
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Consejo Superior de Investigaciones Científicas - CSIC (SPAIN)
Other partners > Universidade de Coimbra (PORTUGAL)
Other partners > Cornell University (USA)
Other partners > University of Hong Kong - HKU (CHINA)
Other partners > Instituto Conmemorativo Gorgas de Estudios de la Salud - ICGES (PANAMA)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > James Cook University - JCU (AUSTRALIA)
Other partners > Massey University (NEW ZEALAND)
Other partners > Monash University (MALAYSIA)
Other partners > Universidad de Concepción - UDEC (CHILE)
Other partners > Universidad Nacional Autónoma de México - UNAM (MEXICO)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > University of Toronto (CANADA)
Other partners > University of Yamanashi (JAPAN)
Other partners > Swiss Federal Institute of Aquatic Science and Technology - EAWAG (SWITZERLAND)
Other partners > Egerton university (KENYA)
Other partners > Manonmaniam Sundaranar university (INDIA)
Other partners > Eidgenössische Technische Hochschule Zürich - ETHZ (SWITZERLAND)
Other partners > Universidade Federal de Minas Gerais - UFMG (BRAZIL)
Other partners > Universidad Nacional del Comahue (ARGENTINA)
Other partners > University of New England - UNE (AUSTRALIA)
Other partners > Universidad de Panamà (PANAMA)
Other partners > Universidad de Puerto Rico - UPR (PUERTO RICO)
Other partners > University of Tasmania (AUSTRALIA)
Laboratory name:
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Deposited By: Eric Chauvet
Deposited On:01 Apr 2014 09:38

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