Global patterns and drivers of ecosystem functioning in rivers and riparian zones

作者：Scott D. Tiegs, David M. Costello, Mark W. Isken, Guy Woodward, Peter B. McIntyre, Mark O. Gessner, Éric Chauvet, Natalie A. Griffiths, Alexander S. Flecker, Vicenç Acuña, Ricardo Albariño, Daniel C. Allen, Cecília Alonso, Patricio Andino, Clay P. Arango, Jukka Aroviita, Marcus Vinícius Moreira Barbosa, Leon A. Barmuta, Colden V. Baxter, Thomas Bell, Brent J. Bellinger, Luz Boyero, Lee E. Brown, Andreas Bruder, Denise A. Bruesewitz, Francis J. Burdon, Marcos Callisto, Cristina Canhoto, Krista A. Capps, María M. Castillo, Joanne E. Clapcott, Fanny Colas, J. Checo Colón-Gaud, Julien Cornut, Verónica Crespo‐Pérez, Wyatt F. Cross, Joseph M. Culp, Michaël Danger, Olivier Dangles, Elvira de Eyto, Alison M. Derry, Verónica Díaz Villanueva, Michael M. Douglas, Arturo Elosegi, Andrea C. Encalada, Sally A. Entrekin, Rodrigo Espinosa, Diana Ethaiya, Verónica Ferreira, Carmen Ferriol, Kyla M. Flanagan, Tadeusz Fleituch, Jennifer J. Follstad Shah, André Frainer, Nikolai Friberg, Paul C. Frost, Erica A. García, Loreley S. Lago, Pavel García, Sudeep D. Ghate, Darren P. Giling, Alan Gilmer, José Francisco Gonçalves, Rosario Karina Gonzales, Manuel A. S. Graça, Michael Grace, Hans‐Peter Grossart, François Guérold, Vladislav Gulis, Luiz Ubiratan Hepp, Scott N. Higgins, Takuo Hishi, Joseph Huddart, John Hudson, Moss Imberger, Carlos Iñiguez‐Armijos, Tomoya Iwata, David J. Janetski, Eleanor Jennings, Andrea E. Kirkwood, Aaron A. Koning, Sarian Kosten, Kevin A. Kuehn, Hjalmar Laudon, Peter R. Leavitt, Aurea Luiza Lemes da Silva, Shawn Leroux, Carri J. LeRoy, Peter J. Lisi, Richard A. MacKenzie, Amy Marcarelli, Frank O. Masese, Brendan G. McKie, Adriana O. Medeiros, Kristian Meissner, Marko Miliša, Shailendra Mishra, Yo Miyake, Ashley H. Moerke, Shorok Mombrikotb, Rob Mooney, Tim Moulton, Timo Muotka, Junjiro N. Negishi, Vinicius Neres‐Lima, Mika Nieminen, Jorge Nimptsch, Jakub Ondruch, Riku Paavola, Isabel Pardo, Christopher J. Patrick, E.T.H.M. Peeters, Jesús Pozo, Catherine M. Pringle, Aaron Prussian, Estefania Quenta, Antonio Quesada, Brian Reid, John S. Richardson, Anna Rigosi, José Rincón, Geta Rîşnoveanu, Christopher T. Robinson, Lorena Rodríguez–Gallego, Todd V. Royer, James A. Rusak, Anna C. Santamans, Géza B. Selmeczy, Gelas Simiyu, Agnija Skuja, Jerzy Smykla, Kandikere R. Sridhar, Ryan A. Sponseller, Aaron B. Stoler, Christopher M. Swan, David C. Szlag, Franco Teixeira de Mello, Jonathan D. Tonkin, Sari Uusheimo, Allison M. Veach, Sirje Vilbaste, Lena B.-M. Vought, Chiao‐Ping Wang, Jackson R. Webster, Paul Wilson, Stefan Woelfl, Marguerite A. Xenopoulos, Adam G. Yates, Chihiro Yoshimura, Catherine M. Yule, Yixin Zhang, Jacob A. Zwart · 发表于：Science Advances · 年份：2019 · DOI：10.1126/sciadv.aav0486 · 被引用次数：237 · 研究领域：Land Use and Ecosystem Services、Marine and coastal ecosystems、Fish Ecology and Management Studies

River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater than 1000 river and riparian sites. We found that Earth's biomes have distinct carbon processing signatures. Slow processing is evident across latitudes, whereas rapid rates are restricted to lower latitudes. Both the mean rate and variability decline with latitude, suggesting temperature constraints toward the poles and greater roles for other environmental drivers (e.g., nutrient loading) toward the equator. These results and data set the stage for unprecedented "next-generation biomonitoring" by establishing baselines to help quantify environmental impacts to the functioning of ecosystems at a global scale.