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1. Latitude dictates plant diversity effects on instream decomposition

Author

Boyero, L. (Luz), Perez, J. (Javier), Lopez-Rojo, N. (Naiara), Tonin, A. M. (Alan M.), Correa-Araneda, F. (Francisco), Pearson, R. G. (Richard G.), Bosch, J. (Jaime), Albarino, R. J. (Ricardo J.), Anbalagan, S. (Sankarappan), Barmuta, L. A. (Leon A.), Beesley, L. (Leah), Burdon, F. J. (Francis J.), Caliman, A. (Adriano), Callisto, M. (Marcos), Campbell, I. C. (Ian C.), Cardinale, B. J. (Bradley J.), Jesus Casas, J. (J.), Chara-Serna, A. M. (Ana M.), Ciapala, S. (Szymon), Chauvet, E. (Eric), Colon-Gaud, C. (Checo), Cornejo, A. (Aydee), Davis, A. M. (Aaron M.), Degebrodt, M. (Monika), Dias, E. S. (Emerson S.), Diaz, M. E. (Maria E.), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Encalada, A. C. (Andrea C.), de Eyto, E. (Elvira), Figueroa, R. (Ricardo), Flecker, A. S. (Alexander S.), Fleituch, T. (Tadeusz), Frainer, A. (Andre), Franca, J. S. (Juliana S.), Garcia, E. A. (Erica A.), Garcia, G. (Gabriela), Garcia, P. (Pavel), Gessner, M. O. (Mark O.), Giller, P. S. (Paul S.), Gomez, J. E. (Jesus E.), Gomez, S. (Sergio), Goncalves, J. F. (Jose F., Jr.), Graca, M. A. (Manuel A. S.), Hall, R. O. (Robert O., Jr.), Hamada, N. (Neusa), Hepp, L. U. (Luiz U.), Hui, C. (Cang), Imazawa, D. (Daichi), Iwata, T. (Tomoya), Edson, S. A. (S. A. Junior), Kariuki, S. (Samuel), Landeira-Dabarca, A. (Andrea), Leal, M. (Maria), Lehosmaa, K. (Kaisa), M'Erimba, C. (Charles), Marchant, R. (Richard), Martins, R. T. (Renato T.), Masese, F. O. (Frank O.), Camden, M. (Megan), McKie, B. G. (Brendan G.), Medeiros, A. O. (Adriana O.), Middleton, J. A. (Jen A.), Muotka, T. (Timo), Negishi, J. N. (Junjiro N.), Pozo, J. (Jesus), Ramirez, A. (Alonso), Rezende, R. S. (Renan S.), Richardson, J. S. (John S.), Rincon, J. (Jose), Rubio-Rios, J. (Juan), Serrano, C. (Claudia), Shaffer, A. R. (Angela R.), Sheldon, F. (Fran), Swan, C. M. (Christopher M.), Tenkiano, N. S. (Nathalie S. D.), Tiegs, S. D. (Scott D.), Tolod, J. R. (Janine R.), Vernasky, M. (Michael), Watson, A. (Anne), Yegon, M. J. (Mourine J.), Yule, C. M. (Catherine M.), Boyero, L. (Luz), Perez, J. (Javier), Lopez-Rojo, N. (Naiara), Tonin, A. M. (Alan M.), Correa-Araneda, F. (Francisco), Pearson, R. G. (Richard G.), Bosch, J. (Jaime), Albarino, R. J. (Ricardo J.), Anbalagan, S. (Sankarappan), Barmuta, L. A. (Leon A.), Beesley, L. (Leah), Burdon, F. J. (Francis J.), Caliman, A. (Adriano), Callisto, M. (Marcos), Campbell, I. C. (Ian C.), Cardinale, B. J. (Bradley J.), Jesus Casas, J. (J.), Chara-Serna, A. M. (Ana M.), Ciapala, S. (Szymon), Chauvet, E. (Eric), Colon-Gaud, C. (Checo), Cornejo, A. (Aydee), Davis, A. M. (Aaron M.), Degebrodt, M. (Monika), Dias, E. S. (Emerson S.), Diaz, M. E. (Maria E.), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Encalada, A. C. (Andrea C.), de Eyto, E. (Elvira), Figueroa, R. (Ricardo), Flecker, A. S. (Alexander S.), Fleituch, T. (Tadeusz), Frainer, A. (Andre), Franca, J. S. (Juliana S.), Garcia, E. A. (Erica A.), Garcia, G. (Gabriela), Garcia, P. (Pavel), Gessner, M. O. (Mark O.), Giller, P. S. (Paul S.), Gomez, J. E. (Jesus E.), Gomez, S. (Sergio), Goncalves, J. F. (Jose F., Jr.), Graca, M. A. (Manuel A. S.), Hall, R. O. (Robert O., Jr.), Hamada, N. (Neusa), Hepp, L. U. (Luiz U.), Hui, C. (Cang), Imazawa, D. (Daichi), Iwata, T. (Tomoya), Edson, S. A. (S. A. Junior), Kariuki, S. (Samuel), Landeira-Dabarca, A. (Andrea), Leal, M. (Maria), Lehosmaa, K. (Kaisa), M'Erimba, C. (Charles), Marchant, R. (Richard), Martins, R. T. (Renato T.), Masese, F. O. (Frank O.), Camden, M. (Megan), McKie, B. G. (Brendan G.), Medeiros, A. O. (Adriana O.), Middleton, J. A. (Jen A.), Muotka, T. (Timo), Negishi, J. N. (Junjiro N.), Pozo, J. (Jesus), Ramirez, A. (Alonso), Rezende, R. S. (Renan S.), Richardson, J. S. (John S.), Rincon, J. (Jose), Rubio-Rios, J. (Juan), Serrano, C. (Claudia), Shaffer, A. R. (Angela R.), Sheldon, F. (Fran), Swan, C. M. (Christopher M.), Tenkiano, N. S. (Nathalie S. D.), Tiegs, S. D. (Scott D.), Tolod, J. R. (Janine R.), Vernasky, M. (Michael), Watson, A. (Anne), Yegon, M. J. (Mourine J.), and Yule, C. M. (Catherine M.)

Abstract

Running waters contribute substantially to global carbon fluxes through decomposition of terrestrial plant litter by aquatic microorganisms and detritivores. Diversity of this litter may influence instream decomposition globally in ways that are not yet understood. We investigated latitudinal differences in decomposition of litter mixtures of low and high functional diversity in 40 streams on 6 continents and spanning 113° of latitude. Despite important variability in our dataset, we found latitudinal differences in the effect of litter functional diversity on decomposition, which we explained as evolutionary adaptations of litter-consuming detritivores to resource availability. Specifically, a balanced diet effect appears to operate at lower latitudes versus a resource concentration effect at higher latitudes. The latitudinal pattern indicates that loss of plant functional diversity will have different consequences on carbon fluxes across the globe, with greater repercussions likely at low latitudes.

Published
2021

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

Author

Tiegs, SD, Costello, DM, Isken, MW, Woodward, G, McIntyre, PB, Gessner, MO, Chauvet, E, Griffiths, NA, Flecker, AS, Acuna, V, Albarino, R, Allen, DC, Alonso, C, Andino, P, Arango, C, Aroviita, J, Barbosa, MVM, Barmuta, LA, Baxter, CV, Bell, TDC, Bellinger, B, Boyero, L, Brown, LE, Bruder, A, Bruesewitz, DA, Burdon, FJ, Callisto, M, Canhoto, C, Capps, KA, Castillo, MM, Clapcott, J, Colas, F, Colon-Gaud, C, Cornut, J, Crespo-Perez, V, Cross, WF, Culp, JM, Danger, M, Dangles, O, de Eyto, E, Derry, AM, Diaz Villanueva, V, Douglas, MM, Elosegi, A, Encalada, AC, Entrekin, S, Espinosa, R, Ethaiya, D, Ferreira, V, Ferriol, C, Flanagan, KM, Fleituch, T, Shah, JJF, Frainer, A, Friberg, N, Frost, PC, Garcia, EA, Lago, LG, Garcia Soto, PE, Ghate, S, Giling, DP, Gilmer, A, Goncalves, JF, Gonzales, RK, Graca, MAS, Grace, M, Grossart, H-P, Guerold, F, Gulis, V, Hepp, LU, Higgins, S, Hishi, T, Huddart, J, Hudson, J, Imberger, S, Iniguez-Armijos, C, Iwata, T, Janetski, DJ, Jennings, E, Kirkwood, AE, Koning, AA, Kosten, S, Kuehn, KA, Laudon, H, Leavitt, PR, Lemes da Silva, AL, Leroux, SJ, Leroy, CJ, Lisi, PJ, MacKenzie, R, Marcarelli, AM, Masese, FO, Mckie, BG, Oliveira Medeiros, A, Meissner, K, Milisa, M, Mishra, S, Miyake, Y, Moerke, A, Mombrikotb, S, Mooney, R, Moulton, T, Muotka, T, Negishi, JN, Neres-Lima, V, Nieminen, ML, Nimptsch, J, Ondruch, J, Paavola, R, Pardo, I, Patrick, CJ, Peeters, ETHM, Pozo, J, Pringle, C, Prussian, A, Quenta, E, Quesada, A, Reid, B, Richardson, JS, Rigosi, A, Rincon, J, Risnoveanu, G, Robinson, CT, Rodriguez-Gallego, L, Royer, TV, Rusak, JA, Santamans, AC, Selmeczy, GB, Simiyu, G, Skuja, A, Smykla, J, Sridhar, KR, Sponseller, R, Stoler, A, Swan, CM, Szlag, D, Teixeira-de Mello, F, Tonkin, JD, Uusheimo, S, Veach, AM, Vilbaste, S, Vought, LBM, Wang, C-P, Webster, JR, Wilson, PB, Woelfl, S, Xenopoulos, MA, Yates, AG, Yoshimura, C, Yule, CM, Zhang, YX, Zwart, JA, Tiegs, SD, Costello, DM, Isken, MW, Woodward, G, McIntyre, PB, Gessner, MO, Chauvet, E, Griffiths, NA, Flecker, AS, Acuna, V, Albarino, R, Allen, DC, Alonso, C, Andino, P, Arango, C, Aroviita, J, Barbosa, MVM, Barmuta, LA, Baxter, CV, Bell, TDC, Bellinger, B, Boyero, L, Brown, LE, Bruder, A, Bruesewitz, DA, Burdon, FJ, Callisto, M, Canhoto, C, Capps, KA, Castillo, MM, Clapcott, J, Colas, F, Colon-Gaud, C, Cornut, J, Crespo-Perez, V, Cross, WF, Culp, JM, Danger, M, Dangles, O, de Eyto, E, Derry, AM, Diaz Villanueva, V, Douglas, MM, Elosegi, A, Encalada, AC, Entrekin, S, Espinosa, R, Ethaiya, D, Ferreira, V, Ferriol, C, Flanagan, KM, Fleituch, T, Shah, JJF, Frainer, A, Friberg, N, Frost, PC, Garcia, EA, Lago, LG, Garcia Soto, PE, Ghate, S, Giling, DP, Gilmer, A, Goncalves, JF, Gonzales, RK, Graca, MAS, Grace, M, Grossart, H-P, Guerold, F, Gulis, V, Hepp, LU, Higgins, S, Hishi, T, Huddart, J, Hudson, J, Imberger, S, Iniguez-Armijos, C, Iwata, T, Janetski, DJ, Jennings, E, Kirkwood, AE, Koning, AA, Kosten, S, Kuehn, KA, Laudon, H, Leavitt, PR, Lemes da Silva, AL, Leroux, SJ, Leroy, CJ, Lisi, PJ, MacKenzie, R, Marcarelli, AM, Masese, FO, Mckie, BG, Oliveira Medeiros, A, Meissner, K, Milisa, M, Mishra, S, Miyake, Y, Moerke, A, Mombrikotb, S, Mooney, R, Moulton, T, Muotka, T, Negishi, JN, Neres-Lima, V, Nieminen, ML, Nimptsch, J, Ondruch, J, Paavola, R, Pardo, I, Patrick, CJ, Peeters, ETHM, Pozo, J, Pringle, C, Prussian, A, Quenta, E, Quesada, A, Reid, B, Richardson, JS, Rigosi, A, Rincon, J, Risnoveanu, G, Robinson, CT, Rodriguez-Gallego, L, Royer, TV, Rusak, JA, Santamans, AC, Selmeczy, GB, Simiyu, G, Skuja, A, Smykla, J, Sridhar, KR, Sponseller, R, Stoler, A, Swan, CM, Szlag, D, Teixeira-de Mello, F, Tonkin, JD, Uusheimo, S, Veach, AM, Vilbaste, S, Vought, LBM, Wang, C-P, Webster, JR, Wilson, PB, Woelfl, S, Xenopoulos, MA, Yates, AG, Yoshimura, C, Yule, CM, Zhang, YX, and Zwart, JA

Abstract

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.

Published
2019

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

Author

Tiegs, S. D. (Scott D.), Costello, D. M. (David M.), Isken, M. W. (Mark W.), Woodward, G. (Guy), McIntyre, P. B. (Peter B.), Gessner, M. O. (Mark O.), Chauvet, E. (Eric), Griffiths, N. A. (Natalie A.), Flecker, A. S. (Alex S.), Acuna, V. (Vicenc), Albarino, R. (Ricardo), Allen, D. C. (Daniel C.), Alonso, C. (Cecilia), Andino, P. (Patricio), Arango, C. (Clay), Aroviita, J. (Jukka), Barbosa, M. V. (Marcus V. M.), Barmuta, L. A. (Leon A.), Baxter, C. V. (Colden V.), Bell, T. D. (Thomas D. C.), Bellinger, B. (Brent), Boyero, L. (Luz), Brown, L. E. (Lee E.), Bruder, A. (Andreas), Bruesewitz, D. A. (Denise A.), Burdon, F. J. (Francis J.), Callisto, M. (Marcos), Canhoto, C. (Cristina), Capps, K. A. (Krista A.), Castillo, M. M. (Maria M.), Clapcott, J. (Joanne), Colas, F. (Fanny), Colon-Gaud, C. (Checo), Cornut, J. (Julien), Crespo-Perez, V. (Veronica), Cross, W. F. (Wyatt F.), Culp, J. M. (Joseph M.), Danger, M. (Michael), Dangles, O. (Olivier), de Eyto, E. (Elvira), Derry, A. M. (Alison M.), Diaz Villanueva, V. (Veronica), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Encalada, A. C. (Andrea C.), Entrekin, S. (Sally), Espinosa, R. (Rodrigo), Ethaiya, D. (Diana), Ferreira, V. (Veronica), Ferriol, C. (Carmen), Flanagan, K. M. (Kyla M.), Fleituch, T. (Tadeusz), Shah, J. J. (Jennifer J. Follstad), Frainer, A. (Andre), Friberg, N. (Nikolai), Frost, P. C. (Paul C.), Garcia, E. A. (Erica A.), Lago, L. G. (Liliana Garcia), Garcia Soto, P. E. (Pavel Ernesto), Ghate, S. (Sudeep), Giling, D. P. (Darren P.), Gilmer, A. (Alan), Goncalves, J. F. (Jose Francisco, Jr.), Gonzales, R. K. (Rosario Karina), Graca, M. A. (Manuel A. S.), Grace, M. (Mike), Grossart, H.-P. (Hans-Peter), Guerold, F. (Francois), Gulis, V. (Vlad), Hepp, L. U. (Luiz U.), Higgins, S. (Scott), Hishi, T. (Takuo), Huddart, J. (Joseph), Hudson, J. (John), Imberger, S. (Samantha), Iniguez-Armijos, C. (Carlos), Iwata, T. (Tomoya), Janetski, D. J. (David J.), Jennings, E. (Eleanor), Kirkwood, A. E. (Andrea E.), Koning, A. A. (Aaron A.), Kosten, S. (Sarian), Kuehn, K. A. (Kevin A.), Laudon, H. (Hjalmar), Leavitt, P. R. (Peter R.), Lemes da Silva, A. L. (Aurea L.), Leroux, S. J. (Shawn J.), Leroy, C. J. (Carri J.), Lisi, P. J. (Peter J.), MacKenzie, R. (Richard), Marcarelli, A. M. (Amy M.), Masese, F. O. (Frank O.), Mckie, B. G. (Brendan G.), Oliveira Medeiros, A. (Adriana), Meissner, K. (Kristian), Milisa, M. (Marko), Mishra, S. (Shailendra), Miyake, Y. (Yo), Moerke, A. (Ashley), Mombrikotb, S. (Shorok), Mooney, R. (Rob), Moulton, T. (Tim), Muotka, T. (Timo), Negishi, J. N. (Junjiro N.), Neres-Lima, V. (Vinicius), Nieminen, M. L. (Mika L.), Nimptsch, J. (Jorge), Ondruch, J. (Jakub), Paavola, R. (Riku), Pardo, I. (Isabel), Patrick, C. J. (Christopher J.), Peeters, E. T. (Edwin T. H. M.), Pozo, J. (Jesus), Pringle, C. (Catherine), Prussian, A. (Aaron), Quenta, E. (Estefania), Quesada, A. (Antonio), Reid, B. (Brian), Richardson, J. S. (John S.), Rigosi, A. (Anna), Rincon, J. (Jose), Risnoveanu, G. (Geta), Robinson, C. T. (Christopher T.), Rodriguez-Gallego, L. (Lorena), Royer, T. V. (Todd V.), Rusak, J. A. (James A.), Santamans, A. C. (Anna C.), Selmeczy, G. B. (Geza B.), Simiyu, G. (Gelas), Skuja, A. (Agnija), Smykla, J. (Jerzy), Sridhar, K. R. (Kandikere R.), Sponseller, R. (Ryan), Stoler, A. (Aaron), Swan, C. M. (Christopher M.), Szlag, D. (David), Teixeira-de Mello, F. (Franco), Tonkin, J. D. (Jonathan D.), Uusheimo, S. (Sari), Veach, A. M. (Allison M.), Vilbaste, S. (Sirje), Vought, L. B. (Lena B. M.), Wang, C.-P. (Chiao-Ping), Webster, J. R. (Jackson R.), Wilson, P. B. (Paul B.), Woelfl, S. (Stefan), Xenopoulos, M. A. (Marguerite A.), Yates, A. G. (Adam G.), Yoshimura, C. (Chihiro), Yule, C. M. (Catherine M.), Zhang, Y. X. (Yixin X.), Zwart, J. A. (Jacob A.), Tiegs, S. D. (Scott D.), Costello, D. M. (David M.), Isken, M. W. (Mark W.), Woodward, G. (Guy), McIntyre, P. B. (Peter B.), Gessner, M. O. (Mark O.), Chauvet, E. (Eric), Griffiths, N. A. (Natalie A.), Flecker, A. S. (Alex S.), Acuna, V. (Vicenc), Albarino, R. (Ricardo), Allen, D. C. (Daniel C.), Alonso, C. (Cecilia), Andino, P. (Patricio), Arango, C. (Clay), Aroviita, J. (Jukka), Barbosa, M. V. (Marcus V. M.), Barmuta, L. A. (Leon A.), Baxter, C. V. (Colden V.), Bell, T. D. (Thomas D. C.), Bellinger, B. (Brent), Boyero, L. (Luz), Brown, L. E. (Lee E.), Bruder, A. (Andreas), Bruesewitz, D. A. (Denise A.), Burdon, F. J. (Francis J.), Callisto, M. (Marcos), Canhoto, C. (Cristina), Capps, K. A. (Krista A.), Castillo, M. M. (Maria M.), Clapcott, J. (Joanne), Colas, F. (Fanny), Colon-Gaud, C. (Checo), Cornut, J. (Julien), Crespo-Perez, V. (Veronica), Cross, W. F. (Wyatt F.), Culp, J. M. (Joseph M.), Danger, M. (Michael), Dangles, O. (Olivier), de Eyto, E. (Elvira), Derry, A. M. (Alison M.), Diaz Villanueva, V. (Veronica), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Encalada, A. C. (Andrea C.), Entrekin, S. (Sally), Espinosa, R. (Rodrigo), Ethaiya, D. (Diana), Ferreira, V. (Veronica), Ferriol, C. (Carmen), Flanagan, K. M. (Kyla M.), Fleituch, T. (Tadeusz), Shah, J. J. (Jennifer J. Follstad), Frainer, A. (Andre), Friberg, N. (Nikolai), Frost, P. C. (Paul C.), Garcia, E. A. (Erica A.), Lago, L. G. (Liliana Garcia), Garcia Soto, P. E. (Pavel Ernesto), Ghate, S. (Sudeep), Giling, D. P. (Darren P.), Gilmer, A. (Alan), Goncalves, J. F. (Jose Francisco, Jr.), Gonzales, R. K. (Rosario Karina), Graca, M. A. (Manuel A. S.), Grace, M. (Mike), Grossart, H.-P. (Hans-Peter), Guerold, F. (Francois), Gulis, V. (Vlad), Hepp, L. U. (Luiz U.), Higgins, S. (Scott), Hishi, T. (Takuo), Huddart, J. (Joseph), Hudson, J. (John), Imberger, S. (Samantha), Iniguez-Armijos, C. (Carlos), Iwata, T. (Tomoya), Janetski, D. J. (David J.), Jennings, E. (Eleanor), Kirkwood, A. E. (Andrea E.), Koning, A. A. (Aaron A.), Kosten, S. (Sarian), Kuehn, K. A. (Kevin A.), Laudon, H. (Hjalmar), Leavitt, P. R. (Peter R.), Lemes da Silva, A. L. (Aurea L.), Leroux, S. J. (Shawn J.), Leroy, C. J. (Carri J.), Lisi, P. J. (Peter J.), MacKenzie, R. (Richard), Marcarelli, A. M. (Amy M.), Masese, F. O. (Frank O.), Mckie, B. G. (Brendan G.), Oliveira Medeiros, A. (Adriana), Meissner, K. (Kristian), Milisa, M. (Marko), Mishra, S. (Shailendra), Miyake, Y. (Yo), Moerke, A. (Ashley), Mombrikotb, S. (Shorok), Mooney, R. (Rob), Moulton, T. (Tim), Muotka, T. (Timo), Negishi, J. N. (Junjiro N.), Neres-Lima, V. (Vinicius), Nieminen, M. L. (Mika L.), Nimptsch, J. (Jorge), Ondruch, J. (Jakub), Paavola, R. (Riku), Pardo, I. (Isabel), Patrick, C. J. (Christopher J.), Peeters, E. T. (Edwin T. H. M.), Pozo, J. (Jesus), Pringle, C. (Catherine), Prussian, A. (Aaron), Quenta, E. (Estefania), Quesada, A. (Antonio), Reid, B. (Brian), Richardson, J. S. (John S.), Rigosi, A. (Anna), Rincon, J. (Jose), Risnoveanu, G. (Geta), Robinson, C. T. (Christopher T.), Rodriguez-Gallego, L. (Lorena), Royer, T. V. (Todd V.), Rusak, J. A. (James A.), Santamans, A. C. (Anna C.), Selmeczy, G. B. (Geza B.), Simiyu, G. (Gelas), Skuja, A. (Agnija), Smykla, J. (Jerzy), Sridhar, K. R. (Kandikere R.), Sponseller, R. (Ryan), Stoler, A. (Aaron), Swan, C. M. (Christopher M.), Szlag, D. (David), Teixeira-de Mello, F. (Franco), Tonkin, J. D. (Jonathan D.), Uusheimo, S. (Sari), Veach, A. M. (Allison M.), Vilbaste, S. (Sirje), Vought, L. B. (Lena B. M.), Wang, C.-P. (Chiao-Ping), Webster, J. R. (Jackson R.), Wilson, P. B. (Paul B.), Woelfl, S. (Stefan), Xenopoulos, M. A. (Marguerite A.), Yates, A. G. (Adam G.), Yoshimura, C. (Chihiro), Yule, C. M. (Catherine M.), Zhang, Y. X. (Yixin X.), and Zwart, J. A. (Jacob A.)

Abstract

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.

Published
2019

4. Latitude dictates plant diversity effects on instream decomposition.

Author

Boyero L, Pérez J, López-Rojo N, Tonin AM, Correa-Araneda F, Pearson RG, Bosch J, Albariño RJ, Anbalagan S, Barmuta LA, Beesley L, Burdon FJ, Caliman A, Callisto M, Campbell IC, Cardinale BJ, Casas JJ, Chará-Serna AM, Ciapała S, Chauvet E, Colón-Gaud C, Cornejo A, Davis AM, Degebrodt M, Dias ES, Díaz ME, Douglas MM, Elosegi A, Encalada AC, de Eyto E, Figueroa R, Flecker AS, Fleituch T, Frainer A, França JS, García EA, García G, García P, Gessner MO, Giller PS, Gómez JE, Gómez S, Gonçalves JF Jr, Graça MAS, Hall RO Jr, Hamada N, Hepp LU, Hui C, Imazawa D, Iwata T, Junior ESA, Kariuki S, Landeira-Dabarca A, Leal M, Lehosmaa K, M'Erimba C, Marchant R, Martins RT, Masese FO, Camden M, McKie BG, Medeiros AO, Middleton JA, Muotka T, Negishi JN, Pozo J, Ramírez A, Rezende RS, Richardson JS, Rincón J, Rubio-Ríos J, Serrano C, Shaffer AR, Sheldon F, Swan CM, Tenkiano NSD, Tiegs SD, Tolod JR, Vernasky M, Watson A, Yegon MJ, and Yule CM

Abstract

Running waters contribute substantially to global carbon fluxes through decomposition of terrestrial plant litter by aquatic microorganisms and detritivores. Diversity of this litter may influence instream decomposition globally in ways that are not yet understood. We investigated latitudinal differences in decomposition of litter mixtures of low and high functional diversity in 40 streams on 6 continents and spanning 113° of latitude. Despite important variability in our dataset, we found latitudinal differences in the effect of litter functional diversity on decomposition, which we explained as evolutionary adaptations of litter-consuming detritivores to resource availability. Specifically, a balanced diet effect appears to operate at lower latitudes versus a resource concentration effect at higher latitudes. The latitudinal pattern indicates that loss of plant functional diversity will have different consequences on carbon fluxes across the globe, with greater repercussions likely at low latitudes., (Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).)

Published
2021
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5. Global patterns and drivers of ecosystem functioning in rivers and riparian zones.

Author

Tiegs SD, Costello DM, Isken MW, Woodward G, McIntyre PB, Gessner MO, Chauvet E, Griffiths NA, Flecker AS, Acuña V, Albariño R, Allen DC, Alonso C, Andino P, Arango C, Aroviita J, Barbosa MVM, Barmuta LA, Baxter CV, Bell TDC, Bellinger B, Boyero L, Brown LE, Bruder A, Bruesewitz DA, Burdon FJ, Callisto M, Canhoto C, Capps KA, Castillo MM, Clapcott J, Colas F, Colón-Gaud C, Cornut J, Crespo-Pérez V, Cross WF, Culp JM, Danger M, Dangles O, de Eyto E, Derry AM, Villanueva VD, Douglas MM, Elosegi A, Encalada AC, Entrekin S, Espinosa R, Ethaiya D, Ferreira V, Ferriol C, Flanagan KM, Fleituch T, Follstad Shah JJ, Frainer Barbosa A, Friberg N, Frost PC, Garcia EA, García Lago L, García Soto PE, Ghate S, Giling DP, Gilmer A, Gonçalves JF Jr, Gonzales RK, Graça MAS, Grace M, Grossart HP, Guérold F, Gulis V, Hepp LU, Higgins S, Hishi T, Huddart J, Hudson J, Imberger S, Iñiguez-Armijos C, Iwata T, Janetski DJ, Jennings E, Kirkwood AE, Koning AA, Kosten S, Kuehn KA, Laudon H, Leavitt PR, Lemes da Silva AL, Leroux SJ, LeRoy CJ, Lisi PJ, MacKenzie R, Marcarelli AM, Masese FO, McKie BG, Oliveira Medeiros A, Meissner K, Miliša M, Mishra S, Miyake Y, Moerke A, Mombrikotb S, Mooney R, Moulton T, Muotka T, Negishi JN, Neres-Lima V, Nieminen ML, Nimptsch J, Ondruch J, Paavola R, Pardo I, Patrick CJ, Peeters ETHM, Pozo J, Pringle C, Prussian A, Quenta E, Quesada A, Reid B, Richardson JS, Rigosi A, Rincón J, Rîşnoveanu G, Robinson CT, Rodríguez-Gallego L, Royer TV, Rusak JA, Santamans AC, Selmeczy GB, Simiyu G, Skuja A, Smykla J, Sridhar KR, Sponseller R, Stoler A, Swan CM, Szlag D, Teixeira-de Mello F, Tonkin JD, Uusheimo S, Veach AM, Vilbaste S, Vought LBM, Wang CP, Webster JR, Wilson PB, Woelfl S, Xenopoulos MA, Yates AG, Yoshimura C, Yule CM, Zhang YX, and Zwart JA

Subjects
Human Activities, Humans, Carbon Cycle physiology, Ecosystem, Environmental Monitoring methods, Rivers microbiology, Temperature
Abstract

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.

Published
2019
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