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3. Identifying Stream Invertebrates as Plant Litter Consumers

Author

Boyero, Luz, Pearson, Richard G., Albariño, Ricardo J., Callisto, Marcos, Correa-Araneda, Francisco, Encalada, Andrea C., Masese, Frank, Moretti, Marcelo S., Ramírez, Alonso, Sparkman, April E., Swan, Christopher M., Yule, Catherine M., Graça, Manuel A. S., Bärlocher, Felix, editor, Gessner, Mark O., editor, and Graça, Manuel A.S., editor

Published
2020
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5. Biodiversity of leaf litter fungi in streams along a latitudinal gradient

Author

Seena, Sahadevan, Bärlocher, Felix, Sobral, Olímpia, Gessner, Mark O., Dudgeon, David, McKie, Brendan G., Chauvet, Eric, Boyero, Luz, Ferreira, Verónica, Frainer, André, Bruder, Andreas, Matthaei, Christoph D., Fenoglio, Stefano, Sridhar, Kandikere R., Albariño, Ricardo J., Douglas, Michael M., Encalada, Andrea C., Garcia, Erica, Ghate, Sudeep D., Giling, Darren P., Gonçalves, Vítor, Iwata, Tomoya, Landeira-Dabarca, Andrea, McMaster, Damien, Medeiros, Adriana O., Naggea, Josheena, Pozo, Jesús, Raposeiro, Pedro M., Swan, Christopher M., Tenkiano, Nathalie S.D., Yule, Catherine M., and Graça, Manuel A.S.

Published
2019
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7. Biotic and abiotic variables influencing plant litter breakdown in streams: a global study

Author

Boyero, Luz, Pearson, Richard G., Hui, Cang, Gessner, Mark O., Pérez, Javier, Alexandrou, Markos A., Graça, Manuel A. S., Cardinale, Bradley J., Albariño, Ricardo J., Arunachalam, Muthukumarasamy, Barmuta, Leon A., Boulton, Andrew J., Bruder, Andreas, Callisto, Marcos, Chauvet, Eric, Death, Russell G., Dudgeon, David, Encalada, Andrea C., Ferreira, Verónica, Figueroa, Ricardo, Flecker, Alexander S., Gonçalves, José F., Helson, Julie, Iwata, Tomoya, Jinggut, Tajang, Mathooko, Jude, Mathuriau, Catherine, M'Erimba, Charles, Moretti, Marcelo S., Pringle, Catherine M., Ramírez, Alonso, Ratnarajah, Lavenia, Rincon, José, and Yule, Catherine M.

Published
2016

10. Global patterns of stream detritivore distribution: implications for biodiversity loss in changing climates

Author

Boyero, Luz, Pearson, Richard G., Dudgeon, David, Ferreira, Verónica, Graça, Manuel A. S., Gessner, Mark O., Boulton, Andrew J., Chauvet, Eric, Yule, Catherine M., Albariño, Ricardo J., Ramírez, Alonso, Helson, Julie E., Callisto, Marcos, Arunachalam, Muthukumarasamy, Chará, Julián, Figueroa, Ricardo, Mathooko, Jude M., Gonçalves, José F., Moretti, Marcelo S., Chará-Serna, Ana Marcela, Davies, Judy N., Encalada, Andrea, Lamothe, Sylvain, Buria, Leonardo M., Castela, José, Cornejo, Aydeé, Li, Aggie O. Y., M'Erimba, Charles, Villanueva, Verónica Díaz, del Carmen Zúñiga, María, Swan, Christopher M., and Barmuta, Leon A.

Published
2012
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12. Global distribution of a key trophic guild contrasts with common latitudinal diversity patterns

Author

Boyero, Luz, Pearson, Richard G., Dudgeon, David, Graça, Manuel A. S., Gessner, Mark O., Albariño, Ricardo J., Ferreira, Verónica, Yule, Catherine M., Boulton, Andrew J., Arunachalam, Muthukumarasamy, Callisto, Marcos, Chauvet, Eric, Ramírez, Alonso, RAMÍREZ, ALONZO, Chará, Julián, Moretti, Marcelo S., Gonçalves,, José F., Helson, Julie E., Chará-Serna, Ana M., Encalada, Andrea C., Davies, Judy N., Lamothe, Sylvain, Cornejo, Aydeè, Li, Aggie O. Y., Buria, Leonardo M., Villanueva, Verónica D., Zúñiga, María C., and Pringle, Catherine M.

Published
2011

14. Ecosistemas acuáticos continentales y sus servicios: Enfoques y escenarios de aplicación en el mundo real.

Author

PASCUAL, MIGUEL, BARRAL, MARÍA P., POCA, MARÍA, PESSACG, NATALIA, GARCÍA SILVA, LEANDRO, ALBARINO, RICARDO, ROMERO, MARÍA E., and JOBBÁGY, ESTEBAN G.

Subjects
WATER management, ENVIRONMENTAL management, AQUATIC resources conservation, ENVIRONMENTAL degradation, WATER supply
Abstract

Copyright of Ecologia Austral is the property of Asociacion Argentina de Ecologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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15. Global patterns and drivers of ecosystem functioning in rivers and riparian zones

Author

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

Author

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

17. Riparian plant litter quality increases with latitude

Author

Boyero, Luz, Graca, Manuel A. S., Tonin, Alan M., Perez, Javier, Swafford, Andrew J., Ferreira, Veronica, Landeira-Dabarca, Andrea, Alexandrou, Markos A., Gessner, Mark O., Mckie, Brendan G., Albarino, Ricardo J., Barmuta, Leon A., Callisto, Marcos, Chara, Julian, Chauvet, Eric, Colon-Gaud, Checo, Dudgeon, David, Encalada, Andrea C., Figueroa, Ricardo, Flecker, Alexander S., Fleituch, Tadeusz, Frainer, André, Goncalves, Jose F., Jr., Helson, Julie E., Iwata, Tomoya, Mathooko, Jude, M'Erimba, Charles, Pringle, Catherine M., Ramirez, Alonso, Swan, Christopher M., Yule, Catherine M., Pearson, Richard G., Boyero, Luz, Graca, Manuel A. S., Tonin, Alan M., Perez, Javier, Swafford, Andrew J., Ferreira, Veronica, Landeira-Dabarca, Andrea, Alexandrou, Markos A., Gessner, Mark O., Mckie, Brendan G., Albarino, Ricardo J., Barmuta, Leon A., Callisto, Marcos, Chara, Julian, Chauvet, Eric, Colon-Gaud, Checo, Dudgeon, David, Encalada, Andrea C., Figueroa, Ricardo, Flecker, Alexander S., Fleituch, Tadeusz, Frainer, André, Goncalves, Jose F., Jr., Helson, Julie E., Iwata, Tomoya, Mathooko, Jude, M'Erimba, Charles, Pringle, Catherine M., Ramirez, Alonso, Swan, Christopher M., Yule, Catherine M., and Pearson, Richard G.

Abstract

Plant litter represents a major basal resource in streams, where its decomposition is partly regulated by litter traits. Litter-trait variation may determine the latitudinal gradient in decomposition in streams, which is mainly microbial in the tropics and detritivore-mediated at high latitudes. However, this hypothesis remains untested, as we lack information on large-scale trait variation for riparian litter. Variation cannot easily be inferred from existing leaf-trait databases, since nutrient resorption can cause traits of litter and green leaves to diverge. Here we present the first global-scale assessment of riparian litter quality by determining latitudinal variation (spanning 107 degrees) in litter traits (nutrient concentrations; physical and chemical defences) of 151 species from 24 regions and their relationships with environmental factors and phylogeny. We hypothesized that litter quality would increase with latitude (despite variation within regions) and traits would be correlated to produce 'syndromes' resulting from phylogeny and environmental variation. We found lower litter quality and higher nitrogen: phosphorus ratios in the tropics. Traits were linked but showed no phylogenetic signal, suggesting that syndromes were environmentally determined. Poorer litter quality and greater phosphorus limitation towards the equator may restrict detritivore-mediated decomposition, contributing to the predominance of microbial decomposers in tropical streams.

Published
2017
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