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2. Policy-driven monitoring and evaluation: Does it support adaptive management of socio-ecological systems?

Author

Waylen, Kerry A., Blackstock, Kirsty L., van Hulst, Freddy J., Damian, Carmen, Horváth, Ferenc, Johnson, Richard K., Kanka, Robert, Külvik, Mart, Macleod, Christopher J.A., Meissner, Kristian, Oprina-Pavelescu, Mihaela M., Pino, Joan, Primmer, Eeva, Rîșnoveanu, Geta, Šatalová, Barbora, Silander, Jari, Špulerová, Jana, Suškevičs, Monika, and Van Uytvanck, Jan

Published
2019
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3. Overview of the Romanian Sturgeon Supportive Stocking Programme in the Lower Danube River System

Author

Holostenco Daniela Nicoleta, Ciorpac Mitica, Paraschiv Marian, Iani Marian, Hont Stefan, Taflan Elena, Suciu Radu, and Risnoveanu Geta

Subjects
wild sturgeons, hatchery origin sturgeons, Lower Danube River, NW Black Sea, Ethnology. Social and cultural anthropology, GN301-674, Science, Science (General), Q1-390
Abstract

Due to the worldwide decline of the sturgeon population, stocking programmes were developed for many of these species. The critically endangered anadromous sturgeon populations inhabiting the NW Black Sea and spawning in the Lower Danube River are not an exception. Despite no knowledge of the genetic diversity of the remnant populations, the Romanian supportive stocking programme started in 2005, along with the fishing ban in 2006. These actions were aimed to restore the wild sturgeon populations, spawning in the Lower Danube River. This paper presents and discusses the sturgeon supportive stocking programme implemented in Romania and its achievements. Our screening revealed that the minimum effective number of breeders (Ne) could not be achieved for beluga sturgeon (Huso huso) in 2006 and for Russian sturgeon (Acipenser gueldenstaedtii) throughout the entire programme due to the lack of spawners in the wild. Evaluation of the supportive stocking programme success revealed a good survival rate and adaptation of fish stocked to the wild conditions in the river and sea. It showed that two of the species, beluga and stellate sturgeon (A. stellatus) still spawn naturally in the wild, and their populations are in a good genetic shape, so far, having in mind the habitat decline due to the dams constructions on the river and the post genetic bottleneck recovery. Russian sturgeon population do not exhibits any improvement sign so far. The lack of its spawning events in the wild is still noticed, as the majority of fish captured during the evaluation are of hatchery origin, first generation from wild spawners. Therefore, for beluga and stellate sturgeon, the conservation measures should be revised based on the genetic structure of the spawners and a well-defined breeding schemes. For Russian sturgeon the supportive stocking programme should continue, being highly demanded in order to produce a continuum age structured population. The crucial moment for sturgeon conservation will be when hatchery reared specimens return in the river as adults and participate in the spawning events, an event which should be expected within the next years. Overall, the return of the reared individuals in the river as adults and their participation in the spawning events is expected to produce a real change in the Danube sturgeon species fate with a long-term ripple effect.

Published
2019
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4. Continental-Scale Effects of Nutrient Pollution on Stream Ecosystem Functioning

Author

Woodward, Guy, Gessner, Mark O., Giller, Paul S., Gulis, Vladislav, Hladyz, Sally, Lecerf, Antoine, Malmqvist, Björn, McKie, Brendan G., Tiegs, Scott D., Cariss, Helen, Dobson, Mike, Elosegi, Arturo, Ferreira, Verónica, Graça, Manuel A.S., Fleituch, Tadeusz, Lacoursière, Jean O., Nistorescu, Marius, Pozo, Jesús, Risnoveanu, Geta, Schindler, Markus, Vadineanu, Angheluta, Vought, Lena B.-M., and Chauvet, Eric

Published
2012
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5. Global patterns and controls of nutrient immobilization on decomposing cellulose in riverine ecosystems

Author

Costello, David M., Tiegs, Scott D., Boyero, Luz, Canhoto, Cristina, Capps, Krista A., Danger, Michael, Frost, Paul C., Gessner, Mark O., Griffiths, Natalie A., Halvorson, Halvor M., Kuehn, Kevin A., Marcarelli, Amy M., Royer, Todd V., Mathie, Devan M., Albariño, Ricardo J., Arango, Clay P., Aroviita, Jukka, Baxter, Colden V., Bellinger, Brent J., Bruder, Andreas, Burdon, Francis J., Callisto, Marcos, Camacho, Antonio, Colas, Fanny, Cornut, Julien, Crespo-Pérez, Verónica, Cross, Wyatt F., Derry, Alison M., Douglas, Michael M., Elosegi, Arturo, de Eyto, Elvira, Ferreira, Verónica, Ferriol, Carmen, Fleituch, Tadeusz, Follstad Shah, Jennifer J., Frainer, André, Garcia, Erica A., García, Liliana, García, Pavel E., Giling, Darren P., Gonzales-Pomar, R. Karina, Graça, Manuel A. S., Grossart, Hans-Peter, Guérold, François, Hepp, Luiz U., Higgins, Scott N., Hishi, Takuo, Iñiguez-Armijos, Carlos, Iwata, Tomoya, Kirkwood, Andrea E., Koning, Aaron A., Kosten, Sarian, Laudon, Hjalmar, Leavitt, Peter R., Lemes da Silva, Aurea L., Leroux, Shawn J., LeRoy, Carri J., Lisi, Peter J., Masese, Frank O., McIntyre, Peter B., McKie, Brendan G., Medeiros, Adriana O., Miliša, Marko, Miyake, Yo, Mooney, Robert J., Muotka, Timo, Nimptsch, Jorge, Paavola, Riku, Pardo, Isabel, Parnikoza, Ivan Y., Patrick, Christopher J., Peeters, Edwin T. H. M., Pozo, Jesus, Reid, Brian, Richardson, John S., Rincón, José, Risnoveanu, Geta, Robinson, Christopher T., Santamans, Anna C., Simiyu, Gelas M., Skuja, Agnija, Smykla, Jerzy, Sponseller, Ryan A., Teixeira-de Mello, Franco, Vilbaste, Sirje, Villanueva, Verónica D., Webster, Jackson R., Woelfl, Stefan, Xenopoulos, Marguerite A., Yates, Adam G., Yule, Catherine M., Zhang, Yixin, Zwart, Jacob A., Costello, David M., Tiegs, Scott D., Boyero, Luz, Canhoto, Cristina, Capps, Krista A., Danger, Michael, Frost, Paul C., Gessner, Mark O., Griffiths, Natalie A., Halvorson, Halvor M., Kuehn, Kevin A., Marcarelli, Amy M., Royer, Todd V., Mathie, Devan M., Albariño, Ricardo J., Arango, Clay P., Aroviita, Jukka, Baxter, Colden V., Bellinger, Brent J., Bruder, Andreas, Burdon, Francis J., Callisto, Marcos, Camacho, Antonio, Colas, Fanny, Cornut, Julien, Crespo-Pérez, Verónica, Cross, Wyatt F., Derry, Alison M., Douglas, Michael M., Elosegi, Arturo, de Eyto, Elvira, Ferreira, Verónica, Ferriol, Carmen, Fleituch, Tadeusz, Follstad Shah, Jennifer J., Frainer, André, Garcia, Erica A., García, Liliana, García, Pavel E., Giling, Darren P., Gonzales-Pomar, R. Karina, Graça, Manuel A. S., Grossart, Hans-Peter, Guérold, François, Hepp, Luiz U., Higgins, Scott N., Hishi, Takuo, Iñiguez-Armijos, Carlos, Iwata, Tomoya, Kirkwood, Andrea E., Koning, Aaron A., Kosten, Sarian, Laudon, Hjalmar, Leavitt, Peter R., Lemes da Silva, Aurea L., Leroux, Shawn J., LeRoy, Carri J., Lisi, Peter J., Masese, Frank O., McIntyre, Peter B., McKie, Brendan G., Medeiros, Adriana O., Miliša, Marko, Miyake, Yo, Mooney, Robert J., Muotka, Timo, Nimptsch, Jorge, Paavola, Riku, Pardo, Isabel, Parnikoza, Ivan Y., Patrick, Christopher J., Peeters, Edwin T. H. M., Pozo, Jesus, Reid, Brian, Richardson, John S., Rincón, José, Risnoveanu, Geta, Robinson, Christopher T., Santamans, Anna C., Simiyu, Gelas M., Skuja, Agnija, Smykla, Jerzy, Sponseller, Ryan A., Teixeira-de Mello, Franco, Vilbaste, Sirje, Villanueva, Verónica D., Webster, Jackson R., Woelfl, Stefan, Xenopoulos, Marguerite A., Yates, Adam G., Yule, Catherine M., Zhang, Yixin, and Zwart, Jacob A.

Abstract

Microbes play a critical role in plant litter decomposition and influence the fate of carbon in rivers and riparian zones. When decomposing low-nutrient plant litter, microbes acquire nitrogen (N) and phosphorus (P) from the environment (i.e., nutrient immobilization), and this process is potentially sensitive to nutrient loading and changing climate. Nonetheless, environmental controls on immobilization are poorly understood because rates are also influenced by plant litter chemistry, which is coupled to the same environmental factors. Here we used a standardized, low-nutrient organic matter substrate (cotton strips) to quantify nutrient immobilization at 100 paired stream and riparian sites representing 11 biomes worldwide. Immobilization rates varied by three orders of magnitude, were greater in rivers than riparian zones, and were strongly correlated to decomposition rates. In rivers, P immobilization rates were controlled by surface water phosphate concentrations, but N immobilization rates were not related to inorganic N. The N:P of immobilized nutrients was tightly constrained to a molar ratio of 10:1 despite wide variation in surface water N:P. Immobilization rates were temperature-dependent in riparian zones but not related to temperature in rivers. However, in rivers nutrient supply ultimately controlled whether microbes could achieve the maximum expected decomposition rate at a given temperature. Collectively, we demonstrated that exogenous nutrient supply and immobilization are critical control points for decomposition of organic matter.

Published
2022
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8. Global Patterns and Controls of Nutrient Immobilization on Decomposing Cellulose in Riverine Ecosystems

Author

Costello, David M., primary, Tiegs, Scott D., additional, Boyero, Luz, additional, Canhoto, Cristina, additional, Capps, Krista A., additional, Danger, Michael, additional, Frost, Paul C., additional, Gessner, Mark O., additional, Griffiths, Natalie A., additional, Halvorson, Halvor M., additional, Kuehn, Kevin A., additional, Marcarelli, Amy M., additional, Royer, Todd V., additional, Mathie, Devan M., additional, Albariño, Ricardo J., additional, Arango, Clay P., additional, Aroviita, Jukka, additional, Baxter, Colden V., additional, Bellinger, Brent J., additional, Bruder, Andreas, additional, Burdon, Francis J., additional, Callisto, Marcos, additional, Camacho, Antonio, additional, Colas, Fanny, additional, Cornut, Julien, additional, Crespo‐Pérez, Verónica, additional, Cross, Wyatt F., additional, Derry, Alison M., additional, Douglas, Michael M., additional, Elosegi, Arturo, additional, de Eyto, Elvira, additional, Ferreira, Verónica, additional, Ferriol, Carmen, additional, Fleituch, Tadeusz, additional, Follstad Shah, Jennifer J., additional, Frainer, André, additional, Garcia, Erica A., additional, García, Liliana, additional, García, Pavel E., additional, Giling, Darren P., additional, Gonzales‐Pomar, R. Karina, additional, Graça, Manuel A. S., additional, Grossart, Hans‐Peter, additional, Guérold, François, additional, Hepp, Luiz U., additional, Higgins, Scott N., additional, Hishi, Takuo, additional, Iñiguez‐Armijos, Carlos, additional, Iwata, Tomoya, additional, Kirkwood, Andrea E., additional, Koning, Aaron A., additional, Kosten, Sarian, additional, Laudon, Hjalmar, additional, Leavitt, Peter R., additional, Lemes da Silva, Aurea L., additional, Leroux, Shawn J., additional, LeRoy, Carri J., additional, Lisi, Peter J., additional, Masese, Frank O., additional, McIntyre, Peter B., additional, McKie, Brendan G., additional, Medeiros, Adriana O., additional, Miliša, Marko, additional, Miyake, Yo, additional, Mooney, Robert J., additional, Muotka, Timo, additional, Nimptsch, Jorge, additional, Paavola, Riku, additional, Pardo, Isabel, additional, Parnikoza, Ivan Y., additional, Patrick, Christopher J., additional, Peeters, Edwin T. H. M., additional, Pozo, Jesus, additional, Reid, Brian, additional, Richardson, John S., additional, Rincón, José, additional, Risnoveanu, Geta, additional, Robinson, Christopher T., additional, Santamans, Anna C., additional, Simiyu, Gelas M., additional, Skuja, Agnija, additional, Smykla, Jerzy, additional, Sponseller, Ryan A., additional, Teixeira‐de Mello, Franco, additional, Vilbaste, Sirje, additional, Villanueva, Verónica D., additional, Webster, Jackson R., additional, Woelfl, Stefan, additional, Xenopoulos, Marguerite A., additional, Yates, Adam G., additional, Yule, Catherine M., additional, Zhang, Yixin, additional, and Zwart, Jacob A., additional

Published
2022
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10. Raportul 7: Raport final

Author

Borlea, Silvia, Dobra, Alexandra, Nistorescu, Marius, Sirbu, Ioana, Grigorescu, Florentina, Enciu, Maria, Cislariu, Alina, Neagu, Teodor, Nagy, Attila Andras, Istvan Imecs, Moldoveanu, Marinela, Stanescu, Stelian, Andreea-Cristina G��lie, Risnoveanu, Geta, Popescu, Cristina, Cazacu, Constantin, Oprina-Pavelescu, Mihaela, and Darmina Nita

Published
2021
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11. Raportul 6: Concluzii, set de recomand��ri ��i propuneri de m��suri pentru reducerea efectelor negative asupra st��rii ecologice a corpurilor de ap��, speciilor ��i habitatelor

Author

Nistorescu, Marius, Nagy, Attila Andras, Istvan Imecs, Cislariu, Alina, Sirbu, Ioana, Borlea, Silvia, Enciu, Maria, Stamat, Ionut, Grigorescu, Florentina, Neagu, Teodor, Doba, Alexandra, Moldoveanu, Marinela, Stanescu, Stelian, Andreea-Cristina G��lie, Risnoveanu, Geta, Popescu, Cristina, Cazacu, Constantin, Oprina-Pavelescu, Mihaela, Darmina Nita, and Barbulescu, Dan

Published
2021
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13. Raportul 5: Evaluarea impactului cumulat asupra st��rii ecologice a corpurilor de ap�� ��i asupra speciilor ��i habitatelor

Author

Borlea, Silvia, Enciu, Maria, Sirbu, Ioana, Stamat, Ionut, Grigorescu, Florentina, Neagu, Teodor, Nagy, Attila Andras, Istvan Imecs, Doba, Alexandra, Nistorescu, Marius, Moldoveanu, Marinela, Stanescu, Stelian, Andreea-Cristina G��lie, Risnoveanu, Geta, Popescu, Cristina, Cazacu, Constantin, Oprina-Pavelescu, Mihaela, and Darmina Nita

Published
2021
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14. Raportul 3: Evaluarea impactului realiz��rii ��i func��ion��rii microhidrocentralelor asupra st��rii ecologice a corpurilor de ap��

Author

Risnoveanu, Geta, Popescu, Cristina, Cazacu, Constantin, Oprina-Pavelescu, Mihaela, Darmina Nita, Moldoveanu, Marinela, Stanescu, Stelian, Andreea-Cristina G��lie, Borlea, Silvia, Grigorescu, Florentina, Neagu, Teodor, Nagy, Attila Andras, Istvan Imecs, Doba, Alexandra, and Nistorescu, Marius

Published
2021
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16. Raportul 1b: Sinteza, analiza ��i concluziile rezultatelor, datelor ��i informa��iilor ob��inute ��n cadrul activit����ii de monitorizare a st��rii ecologice a corpurilor de ap��

Author

Risnoveanu, Geta, Nistorescu, Marius, Moldoveanu, Marinela, Andreea-Cristina G��lie, Borlea, Silvia, Doba, Alexandra, Grigorescu, Florentina, Neagu, Teodor, Nagy, Attila Andras, Istvan Imecs, Stanescu Stelian, Moldoveanu, Alexandru, Popescu, Cristina, Cazacu, Constantin, Oprina-Pavelescu, Mihaela, and Darmina Nita

Published
2021
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17. Assessing the benefits of forested riparian zones: A qualitative index of riparian integrity is positively associated with ecological status in European streams

Author

Burdon, Francis, Ramberg, Ellinor, Sargac, Jasmina, Forio, Marie Anne Eurie, de Saeyer, Nancy, Mutinova, Petra Thea, Moe, Therese Fosholt, Pavelescu, Mihaela Oprina, Dinu, Valentin, Cazacu, Constantin, Witing, Felix, Kupilas, Benjamin, Grandin, Ulf, Volk, Martin, Risnoveanu, Geta, Goethals, Peter, Friberg, Nikolai, Johnson, Richard, and Mckie, Brendan

Subjects
lcsh:Hydraulic engineering, protocols, urbanization, Oceanography, Hydrology, Water Resources, Aquatic Science, Biochemistry, BENTHIC INVERTEBRATE COMMUNITIES, RIVER RESTORATION, lcsh:Water supply for domestic and industrial purposes, lcsh:TC1-978, benthic invertebrates, MANAGEMENT, WATER, climate-change adaptation, RESPONSE RATIOS, nature-based solutions, Water Science and Technology, agriculture, Planning and Development, lcsh:TD201-500, CLIMATE-CHANGE, riparian buffer, Geography, LAND-USE, LANDSCAPE, MACROINVERTEBRATES, land use, BUFFER ZONES, riparian management, Earth and Environmental Sciences, blue-green infrastructure
Abstract

Developing a general, predictive understanding of ecological systems requires knowing how much structural and functional relationships can cross scales and contexts. Here, we introduce the CROSSLINK project that investigates the role of forested riparian buffers in modified European landscapes by measuring a wide range of ecosystem attributes in stream-riparian networks. CROSSLINK involves replicated field measurements in four case-study basins with varying levels of human development: Norway (Oslo Fjord), Sweden (Lake M&auml, laren), Belgium (Zwalm River), and Romania (Argeş River). Nested within these case-study basins include multiple, independent stream-site pairs with a forested riparian buffer and unbuffered section located upstream, as well as headwater and downstream sites to show cumulative land-use impacts. CROSSLINK applies existing and bespoke methods to describe habitat conditions, biodiversity, and ecosystem functioning in aquatic and terrestrial habitats. Here, we summarize the approaches used, detail protocols in supplementary materials, and explain how data is applied in an optimization framework to better manage tradeoffs in multifunctional landscapes. We then present results demonstrating the range of riparian conditions present in our case-study basins and how these environmental states influence stream ecological integrity with the commonly used macroinvertebrate Average Score Per Taxon (ASPT) index. We demonstrate that a qualitative index of riparian integrity can be positively associated with stream ecological status. This introduction to the CROSSLINK project shows the potential for our replicated study with its panoply of ecosystem attributes to help guide management decisions regarding the use of forested riparian buffers in human-impacted landscapes. This knowledge is highly relevant in a time of rapid environmental change where freshwater biodiversity is increasingly under pressure from a range of human impacts that include habitat loss, pollution, and climate change.

Published
2020
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19. 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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20. 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

21. Litter Decomposition as an Indicator of Stream Ecosystem Functioning at Local-to-Continental Scales

Author

Chauvet, Eric, Ferreira, Verónica, Giller, Paul S., McKie, Brendan G., Tiegs, Scott D., Woodward, Guy, Elosegi, Arturo, Dobson, Michael, Fleituch, Tadeusz, Graça, Manuel A. S., Gulis, Vladislav, Hladyz, Sally, Lacoursiere, Jean O., Lecerf, Antoine, Pozo, Jesús, Preda, Elena, Riipinen, Miira P., Risnoveanu, Geta, Vadineanu, Angheluta, Vought, Lena B.-M., Gessner, Mark O., Centre National de la Recherche Scientifique - CNRS (FRANCE), Universidade de Coimbra (PORTUGAL), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Polish Academy of Sciences (POLAND), Technische Universität Berlin - TU Berlin (GERMANY), University College Cork (IRELAND), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Universidad del País Vasco - Euskal Herriko Unibertsitatea - EHU (SPAIN), University of Bucharest (ROMANIA), Coastal Carolina University - CCU (USA), Edinburgh Technopole (UNITED KINGDOM), Imperial College London (UNITED KINGDOM), Kristianstad University College - HKR (SWEDEN), Leibniz-Institute of Freshwater Ecology and Inland Fisheries - IGB (GERMANY), Monash University (AUSTRALIA), Oakland University (USA), Plymouth University (UNITED KINGDOM), Sveriges lantbruksuniversitet - SLU (SWEDEN), Laboratoire Ecologie Fonctionnelle et Environnement (LEFE), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Swedish University of Agricultural Sciences (SLU), Oakland University (UNITED STATES), Imperial College London, Coastal Carolina University - CCU (UNITED STATES), and Plymouth University

Subjects
River, Biodiversité et Ecologie, Ecosystem functioning, Stream, Riparian forest, Biodiversity, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Functional assessment, Leaf litter decomposition, Nutrient, Management
Abstract

International audience; RivFunction is a pan-European initiative that started in 2002 and was aimed at esta- blishing a novel functional-based approach to assessing the ecological status of rivers. Litter decomposition was chosen as the focal process because it plays a central role in stream ecosystems and is easy to study in the field. Impacts of two stressors that occur across the continent, nutrient pollution and modified riparian vegetation, were exam- ined at >200 paired sites in nine European ecoregions. In response to the former, decomposition was dramatically slowed at both extremes of a 1000-fold nutrient gra- dient, indicating nutrient limitation in unpolluted sites, highly variable responses across Europe in moderately impacted streams, and inhibition via associated toxic and addi- tional stressors in highly polluted streams. Riparian forest modification by clear cutting or replacement of natural vegetation by plantations (e.g. conifers, eucalyptus) or pasture produced similarly complex responses. Clear effects caused by specific riparian distur- bances were observed in regionally focused studies, but general trends across different types of riparian modifications were not apparent, in part possibly because of important indirect effects. Complementary field and laboratory experiments were undertaken to tease apart the mechanistic drivers of the continental scale field bioassays by addressing the influence of litter, fungal and detritivore diversity. These revealed generally weak and context-dependent effects on decomposition, suggesting high levels of redundancy (and hence potential insurance mechanisms that can mitigate a degree of species loss) within the food web. Reduced species richness consistently increased decomposition variability, if not the absolute rate. Further field studies were aimed at identifying impor- tant sources of this variability (e.g. litter quality, temporal variability) to help constrain ranges of predicted decomposition rates in different field situations. Thus, although many details still need to be resolved, litter decomposition holds considerable potential in some circumstances to capture impairment of stream ecosystem functioning. For instance, species traits associated with the body size and metabolic capacity of the con- sumers were often the main driver at local scales, and these were often translated into important determinants of otherwise apparently contingent effects at larger scales. Key insights gained from conducting continental scale studies included resolving the appar- ent paradox of inconsistent relationships between nutrients and decomposition rates, as the full complex multidimensional picture emerged from the large-scale dataset, of which only seemingly contradictory fragments had been seen previously.

Published
2016
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22. Data summarizing monitoring and evaluation for three European environmental policies in 9 cases across Europe

Author

Waylen, Kerry A., Blackstock, Kirsty L., van Hulst, Freddy J., Damian, Carmen, Horváth, Ferenc, Johnson, Richard K., Kanka, Robert, Külvik, Mart, Macleod, Christopher J.A., Meissner, Kristian, Oprina-Pavelescu, Mihaela M., Pino, Joan, Primmer, Eeva, Rîșnoveanu, Geta, Šatalová, Barbora, Silander, Jari, Špulerová, Jana, Suškevičs, Monika, and Van Uytvanck, Jan

Published
2019
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23. Stream ecosystem functioning in an agricultural landscape : the importance of terrestrial-aquatic linkages

Author

Hladyz, Sally, Åbjörnsson, Kajsa, Chauvet, Eric, Dobson, Michael, Elosegi, Arturo, Ferreira, Verónica, Fleituch, Tadeusz, Gessner, Mark O., Giller, Paul S., Gulis, Vladislav, Hutton, Stephen A., Lacoursiere, Jean O., Lamothe, Sylvain, Lecerf, Antoine, Malmqvist, Björn, McKie, Brendan G., Nistorescu, Marius, Preda, Elena, Riipinen, Miira P., Risnoveanu, Geta, Schindler, Markus, Tiegs, Scott D., Vought, Lena B.-M., Woodward, Guy, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
Riparian zone, Allochthonous subsidies, Autochthonous production, Open-canopy streams, Ecosystèmes, Aquatic ecosystems, Grass litter, Land-use change, Food webs, Riparian alteration, EU Water Framework Directive
Abstract

The loss of native riparian vegetation and its replacement with non-native species or grazing land for agriculture is a worldwide phenomenon, but one that is prevalent in Europe, reflecting the heavily-modified nature of the continent's landscape. The consequences of these riparian alterations for freshwater ecosystems remain largely unknown, largely because bioassessment has traditionally focused on the impacts of organic pollution on community structure. We addressed the need for a broader perspective, which encompasses changes at the catchment scale, by comparing ecosystem processes in woodland reference sites with those with altered riparian zones. We assessed a range of riparian modifications, including clearance for pasture and replacement of woodland with a range of low diversity plantations, in 100 streams to obtain a continental-scale perspective of the major types of alterations across Europe. Subsequently, we focused on pasture streams, as an especially prevalent widespread riparian alteration, by characterising their structural (e.g. invertebrate and fish communities) and functional (e.g. litter decomposition, algal production, herbivory) attributes in a country (Ireland) dominated by this type of landscape modification, via field and laboratory experiments. We found that microbes became increasingly important as agents of decomposition relative to macrofauna (invertebrates) in impacted sites in general and in pasture streams in particular. Resource quality of grass litter (e.g., carbon : nutrient ratios, lignin and cellulose content) was a key driver of decomposition rates in pasture streams. These systems also relied more heavily on autochthonous algal production than was the case in woodland streams, which were more detrital based. These findings suggest that these pasture streams might be fundamentally different from their native, ancestral woodland state, with a shift towards greater reliance on autochthonous-based processes. This could have a destabilizing effect on the dynamics of the food web relative to the slower, detrital-based pathways that dominate in woodland streams.

Published
2011

24. Chapter 4 - Stream Ecosystem Functioning in an Agricultural Landscape: The Importance of Terrestrial–Aquatic Linkages

Author

Hladyz, Sally, Åbjörnsson, Kajsa, Chauvet, Eric, Dobson, Michael, Elosegi, Arturo, Ferreira, Verónica, Fleituch, Tadeusz, Gessner, Mark O., Giller, Paul S., Gulis, Vladislav, Hutton, Stephen A., Lacoursière, Jean O., Lamothe, Sylvain, Lecerf, Antoine, Malmqvist, Björn, McKie, Brendan G., Nistorescu, Marius, Preda, Elena, Riipinen, Miira P., Rîşnoveanu, Geta, Schindler, Markus, Tiegs, Scott D., Vought, Lena B.-M., and Woodward, Guy

Published
2011
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