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Continental-Scale Effects of Nutrient Pollution on Stream Ecosystem Functioning

Woodward, Guy and Gessner, Mark O. and Giller, Paul S. and Gulis, Vladislav and Hladyz, Sally and Lecerf, Antoine and Malmqvist, Björn and McKie, Brendan G. and Tiegs, Scott D. and Cariss, Helen and Dobson, Mike and Elosegi, Arturo and Ferreira, Verónica and Graça, Manuel A. S. and Fleituch, Tadeusz and Lacoursiere, Jean O. and Nistorescu, Marius and Pozo, Jesús and Risnoveanu, Geta and Schindler, Markus and Vadineanu, Angheluta and Vought, Lena B.-M. and Chauvet, Eric Continental-Scale Effects of Nutrient Pollution on Stream Ecosystem Functioning. (2012) Science Magazine , vol. 336 (n° 6087). pp. 1438-1440. ISSN 0036-8075

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Official URL: http://dx.doi.org/10.1126/science.1219534

Abstract

Excessive nutrient loading is a major threat to aquatic ecosystems worldwide that leads to profound changes in aquatic biodiversity and biogeochemical processes. Systematic quantitative assessment of functional ecosystem measures for river networks is, however, lacking, especially at continental scales. Here, we narrow this gap by means of a pan-European field experiment on a fundamental ecosystem process—leaf-litter breakdown—in 100 streams across a greater than 1000-fold nutrient gradient. Dramatically slowed breakdown at both extremes of the gradient indicated strong nutrient limitation in unaffected systems, potential for strong stimulation in moderately altered systems, and inhibition in highly polluted streams. This large-scale response pattern emphasizes the need to complement established structural approaches (such as water chemistry, hydrogeomorphology, and biological diversity metrics) with functional measures (such as litter-breakdown rate, whole-system metabolism, and nutrient spiraling) for assessing ecosystem health.

Item Type:Article
Additional Information:Thanks to American Association for the Advancement of Science editor. The original PDF of the article can be found at Science website : http://www.sciencemag.org/
HAL Id:hal-00958434
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Universidade de Coimbra (PORTUGAL)
Other partners > Leibniz-Institut für Gewässerökologie und Binnenfischerei - IGB (GERMANY)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Polish Academy of Sciences (POLAND)
Other partners > Technische Universität Berlin - TU Berlin (GERMANY)
Other partners > University College Cork (IRELAND)
Other partners > Umea University (SWEDEN)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Universidad del País Vasco - Euskal Herriko Unibertsitatea - EHU (SPAIN)
Other partners > University of Bucharest (ROMANIA)
Other partners > Swiss Federal Institute of Aquatic Science and Technology - EAWAG (SWITZERLAND)
Other partners > Kristianstad University College - HKR (SWEDEN)
Other partners > Manchester Metropolitan University - MMU (UNITED KINGDOM)
Other partners > Oakland University (USA)
Other partners > Queen Mary University of London - QMUL (UNITED KINGDOM)
Other partners > Eidgenössische Technische Hochschule Zürich - ETHZ (SWITZERLAND)
Laboratory name:
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Deposited By: Eric Chauvet
Deposited On:12 Mar 2014 14:05

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