208 results on '"Rojo, Naiara"'
Search Results
2. Automatic Feedback and Assessment of Team-Coding Assignments in a DevOps Context
- Author
-
Fernandez-Gauna, Borja, Rojo, Naiara, and Graña, Manuel
- Abstract
We describe an automated assessment process for team-coding assignments based on DevOps best practices. This system and methodology includes the definition of Team Performance Metrics measuring properties of the software developed by each team, and their correct use of DevOps techniques. It tracks the progress on each of metric by each group. The methodology also defines Individual Performance Metrics to measure the impact of individual student contributions to increase in Team Performance Metrics. Periodically scheduled reports using these metrics provide students valuable feedback. This process also facilitates the process of assessing the assignments. Although this method is not intended to produce the final grade of each student, it provides very valuable information to the lecturers. We have used it as the main source of information for student and team assessment in one programming course. Additionally, we use other assessment methods to calculate the final grade: written conceptual tests to check their understanding of the development processes, and cross-evaluations. Qualitative evaluation of the students filling relevant questionnaires are very positive and encouraging.
- Published
- 2023
- Full Text
- View/download PDF
3. Automatic feedback and assessment of team-coding assignments in a DevOps context
- Author
-
Fernandez-Gauna, Borja, Rojo, Naiara, and Graña, Manuel
- Published
- 2023
- Full Text
- View/download PDF
4. The Role of Key Plant Species on Litter Decomposition in Streams: Alder as Experimental Model
- Author
-
Pérez, Javier, Basaguren, Ana, López-Rojo, Naiara, Tonin, Alan M., Correa-Araneda, Francisco, Boyero, Luz, Swan, Christopher M., editor, Boyero, Luz, editor, and Canhoto, Cristina, editor
- Published
- 2021
- Full Text
- View/download PDF
5. Global Patterns of Plant Litter Decomposition in Streams
- Author
-
Boyero, Luz, Gessner, Mark O., Pearson, Richard G., Chauvet, Eric, Pérez, Javier, Tiegs, Scott D., Tonin, Alan M., Correa-Araneda, Francisco, López-Rojo, Naiara, Graça, Manuel A. S., Swan, Christopher M., editor, Boyero, Luz, editor, and Canhoto, Cristina, editor
- Published
- 2021
- Full Text
- View/download PDF
6. Effects of gamma irradiation on instream leaf litter decomposition
- Author
-
Boyero, Luz, López-Rojo, Naiara, Pérez, Javier, Tonin, Alan M., Correa-Araneda, Francisco, Davis, Aaron, and Pearson, Richard G.
- Published
- 2021
- Full Text
- View/download PDF
7. Drying and fragmentation drive the dynamics of resources, consumers and ecosystem functions across aquatic‐terrestrial habitats in a river network
- Author
-
Sarremejane, Romain, primary, Silverthorn, Teresa, additional, Arbaretaz, Angélique, additional, Truchy, Amélie, additional, Barthélémy, Nans, additional, López‐Rojo, Naiara, additional, Foulquier, Arnaud, additional, Simon, Laurent, additional, Pella, Hervé, additional, Singer, Gabriel, additional, and Datry, Thibault, additional
- Published
- 2024
- Full Text
- View/download PDF
8. Loss of Key Riparian Plant Species Impacts Stream Ecosystem Functioning
- Author
-
Alonso, Alberto, Pérez, Javier, Monroy, Silvia, López-Rojo, Naiara, Basaguren, Ana, Bosch, Jaime, and Boyero, Luz
- Published
- 2021
- Full Text
- View/download PDF
9. Plant diversity loss affects stream ecosystem multifunctionality
- Author
-
López-Rojo, Naiara, Pozo, Jesús, Pérez, Javier, Basaguren, Ana, Martínez, Aingeru, Tonin, Alan M., Correa-Araneda, Francisco, and Boyero, Luz
- Published
- 2019
10. A feasibility study of the installation of a modular bioreactor inside a chemical scrubber at a wastewater treatment plant
- Author
-
Barona, Astrid, Malo, Adrián, Elías, Ana, Rojo, Naiara, Santaolalla, Arrate, and Gallastegui, Gorka
- Published
- 2021
- Full Text
- View/download PDF
11. Impacts of diffuse urban stressors on stream benthic communities and ecosystem functioning: A review
- Author
-
Colls, Miriam, Viza, Aida, Zufiarre, Aitziber, Camacho-Santamans, Alba, Laini, Alex, Gonzalez-Ferreras, Alexia Maria, Filipe, Ana Filipa, Perez-Calpe, Ana Victoria, Freixa, Anna, Lupon, Anna, Santamans, Anna C., Pradhan, Arunava, Espinosa, Carmen, Vera-Trujillo, Carmen, Gutierrez-Canovas, Cayetano, Mendoza-Lera, Clara, Bruno, Daniel, Mercado-Bettin, Daniel, Morant, Daniel, Batista, Daniela, Cunillera-Montcusi, David, Graca, Diana, Vico-Oton, Eduard, Estevez, Edurne, Leon-Palmero, Elizabeth, Suarez, Ena Lucia, Fenoy, Encarnacion, Lima, Eva, Picazo, Felix, Oficialdegui, Francisco J., Keck, Francois, Gionchetta, Giulia, Sabas, Ibor, Perez-Silos, Ignacio, Antunes, Ilisa, Alvarez-Manzaneda, Inmaculada, de Guzman, Ioar, Fernandes, Isabel, da Silva, Janine Pereira, Wei, Jing, Montes-Perez, Jorge Juan, Trabulo, Jose, Ledesma, Jose L. J., Fernandez-Calero, Jose Maria, Ramiao, Jose Pedro, Rubio-Rios, Juan, Gonzalez-Trujillo, Juan David, Barral-Fraga, Laura, Jimenez, Laura, Vendrell-Puigmitja, Lidia, Bertrans, Lluis, Gomez-Gener, Lluis, Rovelli, Lorenzo, Bistarelli, Lukas Thuile, Sanchez-Morales, Marc, Cabrerizo, Marco J., Aranguren-Gassis, Maria, Argudo, Maria, Navarro-Ramos, Maria J., Atristain, Miren, Lopez-Rojo, Naiara, Valiente, Nicolas, Perujo, Nuria, Pereda, Olatz, Llanos-Paez, Oriana, Belmar, Oscar, Tascon-Pena, Osvaldo, Rodriguez-Lozano, Pablo, de Pedro, Raquel Sanchez, Arias-Real, Rebeca, Bolpagni, Rossano, del Campo, Ruben, Poblador, Silvia, Guareschi, Simone, Hilgert, Stephan, Duarte, Sofia, Rodriguez-Castillo, Tamara, Chonova, Teofana, Conejo-Orosa, Teresa, Cespedes, Vanessa, Granados, Veronica, Osorio, Victor, Vazquez, Victor, Martin-Velez, Victor, Romero, Ferran, Colls, Miriam, Viza, Aida, Zufiarre, Aitziber, Camacho-Santamans, Alba, Laini, Alex, Gonzalez-Ferreras, Alexia Maria, Filipe, Ana Filipa, Perez-Calpe, Ana Victoria, Freixa, Anna, Lupon, Anna, Santamans, Anna C., Pradhan, Arunava, Espinosa, Carmen, Vera-Trujillo, Carmen, Gutierrez-Canovas, Cayetano, Mendoza-Lera, Clara, Bruno, Daniel, Mercado-Bettin, Daniel, Morant, Daniel, Batista, Daniela, Cunillera-Montcusi, David, Graca, Diana, Vico-Oton, Eduard, Estevez, Edurne, Leon-Palmero, Elizabeth, Suarez, Ena Lucia, Fenoy, Encarnacion, Lima, Eva, Picazo, Felix, Oficialdegui, Francisco J., Keck, Francois, Gionchetta, Giulia, Sabas, Ibor, Perez-Silos, Ignacio, Antunes, Ilisa, Alvarez-Manzaneda, Inmaculada, de Guzman, Ioar, Fernandes, Isabel, da Silva, Janine Pereira, Wei, Jing, Montes-Perez, Jorge Juan, Trabulo, Jose, Ledesma, Jose L. J., Fernandez-Calero, Jose Maria, Ramiao, Jose Pedro, Rubio-Rios, Juan, Gonzalez-Trujillo, Juan David, Barral-Fraga, Laura, Jimenez, Laura, Vendrell-Puigmitja, Lidia, Bertrans, Lluis, Gomez-Gener, Lluis, Rovelli, Lorenzo, Bistarelli, Lukas Thuile, Sanchez-Morales, Marc, Cabrerizo, Marco J., Aranguren-Gassis, Maria, Argudo, Maria, Navarro-Ramos, Maria J., Atristain, Miren, Lopez-Rojo, Naiara, Valiente, Nicolas, Perujo, Nuria, Pereda, Olatz, Llanos-Paez, Oriana, Belmar, Oscar, Tascon-Pena, Osvaldo, Rodriguez-Lozano, Pablo, de Pedro, Raquel Sanchez, Arias-Real, Rebeca, Bolpagni, Rossano, del Campo, Ruben, Poblador, Silvia, Guareschi, Simone, Hilgert, Stephan, Duarte, Sofia, Rodriguez-Castillo, Tamara, Chonova, Teofana, Conejo-Orosa, Teresa, Cespedes, Vanessa, Granados, Veronica, Osorio, Victor, Vazquez, Victor, Martin-Velez, Victor, and Romero, Ferran
- Abstract
Catchment urbanisation results in urban streams being exposed to a multitude of stressors. Notably, stressors originating from diffuse sources have received less attention than stressors originating from point sources. Here, advances related to diffuse urban stressors and their consequences for stream benthic communities are summarised by reviewing 92 articles. Based on the search criteria, the number of articles dealing with diffuse urban stressors in streams has been increasing, and most of them focused on North America, Europe, and China. Land use was the most common measure used to characterize diffuse stressor sources in urban streams (70.7 % of the articles characterised land use), and chemical stressors (inorganic nutrients, xenobiotics, metals, and water properties, including pH and conductivity) were more frequently reported than physical or biological stressors. A total of 53.3 % of the articles addressed the impact of urban stressors on macroinvertebrates, while 35.9 % focused on bacteria, 9.8 % on fungi, and 8.7 % on algae. Regarding ecosystem functions, almost half of the articles (43.5 %) addressed changes in community dynamics, 40.3 % addressed organic matter decomposition, and 33.9 % addressed nutrient cycling. When comparing urban and non-urban streams, the reviewed studies suggest that urbanisation negatively impacts the diversity of benthic organisms, leading to shifts in community composition. These changes imply functional degradation of streams. The results of the present review summarise the knowledge gained to date and identify its main gaps to help improve our understanding of urban streams.
- Published
- 2024
- Full Text
- View/download PDF
12. Viability of two alternatives for treating waste solutions from the biomachining process
- Author
-
Santaolalla, Arrate, García, Josu, Rojo, Naiara, Barona, Astrid, and Gallastegui, Gorka
- Published
- 2020
- Full Text
- View/download PDF
13. A common fungicide impairs stream ecosystem functioning through effects on aquatic hyphomycetes and detritivorous caddisflies
- Author
-
Cornejo, Aydeé, Pérez, Javier, Alonso, Alberto, López-Rojo, Naiara, Monroy, Silvia, and Boyero, Luz
- Published
- 2020
- Full Text
- View/download PDF
14. Shifts in Key Leaf Litter Traits Can Predict Effects of Plant Diversity Loss on Decomposition in Streams
- Author
-
López-Rojo, Naiara, Pérez, Javier, Pozo, Jesús, Basaguren, Ana, Apodaka-Etxebarria, Unai, Correa-Araneda, Francisco, and Boyero, Luz
- Published
- 2021
- Full Text
- View/download PDF
15. Microplastics increase susceptibility of amphibian larvae to the chytrid fungus Batrachochytrium dendrobatidis
- Author
-
Bosch, Jaime, Thumsová, Barbora, López-Rojo, Naiara, Pérez, Javier, Alonso, Alberto, Fisher, Matthew C., and Boyero, Luz
- Published
- 2021
- Full Text
- View/download PDF
16. Impacts of detritivore diversity loss on instream decomposition are greatest in the tropics
- Author
-
Boyero, Luz, López-Rojo, Naiara, Tonin, Alan M., Pérez, Javier, Correa-Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Albariño, Ricardo J., Anbalagan, Sankarappan, Barmuta, Leon A., Basaguren, Ana, Burdon, Francis J., Caliman, Adriano, Callisto, Marcos, Calor, Adolfo R., Campbell, Ian C., Cardinale, Bradley J., Jesús Casas, J., Chará-Serna, Ana M., Chauvet, Eric, Ciapała, Szymon, Colón-Gaud, Checo, Cornejo, Aydeé, Davis, Aaron M., Degebrodt, Monika, Dias, Emerson S., Díaz, María E., Douglas, Michael M., Encalada, Andrea C., Figueroa, Ricardo, Flecker, Alexander S., Fleituch, Tadeusz, García, Erica A., García, Gabriela, García, Pavel E., Gessner, Mark O., Gómez, Jesús E., Gómez, Sergio, Gonçalves, Jr, Jose F., Graça, Manuel A. S., Gwinn, Daniel C., Hall, Jr, Robert O., Hamada, Neusa, Hui, Cang, Imazawa, Daichi, Iwata, Tomoya, Kariuki, Samuel K., Landeira-Dabarca, Andrea, Laymon, Kelsey, Leal, María, Marchant, Richard, Martins, Renato T., Masese, Frank O., Maul, Megan, McKie, Brendan G., Medeiros, Adriana O., Erimba, Charles M. M’, Middleton, Jen A., Monroy, Silvia, Muotka, Timo, Negishi, Junjiro N., Ramírez, Alonso, Richardson, John S., Rincón, José, Rubio-Ríos, Juan, dos Santos, Gisele M., Sarremejane, Romain, Sheldon, Fran, Sitati, Augustine, Tenkiano, Nathalie S. D., Tiegs, Scott D., Tolod, Janine R., Venarsky, Michael, Watson, Anne, and Yule, Catherine M.
- Published
- 2021
- Full Text
- View/download PDF
17. River network‐scale drying impacts the spatiotemporal dynamics of greenhouse gas fluxes.
- Author
-
Silverthorn, Teresa, López‐Rojo, Naiara, Sarremejane, Romain, Foulquier, Arnaud, Chanudet, Vincent, Azougui, Abdelkader, del Campo, Rubén, Singer, Gabriel, and Datry, Thibault
- Subjects
- *
GAS dynamics , *GREENHOUSE gases , *CARBON dioxide , *BIOGEOCHEMICAL cycles , *NITROUS oxide , *RIPARIAN areas , *ADAPTIVE fuzzy control , *SCALE-free network (Statistical physics) - Abstract
Rivers significantly contribute to global biogeochemical cycles; however, we have a limited understanding of how drying may influence these cycles. Drying fragments river networks, thereby influencing important ecosystem functions such as the processing of carbon and nitrogen, and associated fluxes of greenhouse gases (GHGs) both locally, and at the river network scale. Our objective was to assess, using a network‐scale approach, the lateral, longitudinal, and temporal dynamics of GHG fluxes in a river network naturally fragmented by drying. We used a closed‐loop chamber with automated analyzers to measure carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) fluxes from dry sediments, flowing waters, isolated pools, and riparian soils, along with a suite of environmental variables, over 9 months at 20 sites across a non‐perennial river network in France. Network‐scale drying had a spatial and temporal legacy effect on GHG fluxes. On average, CO2 fluxes were up to 29 times higher from perennial than non‐perennial sites under flowing conditions. At non‐perennial sites, CO2 and N2O fluxes positively covaried with time since rewetting. In addition, CO2 and N2O fluxes at perennial sites positively covaried with the percent of non‐perennial reaches upstream, indicating a spatial effect of drying. GHG fluxes from riparian soil and dry riverbed sediments had markedly different magnitudes and covariates. This research demonstrates that drying not only has a local‐scale impact but also influences GHG fluxes at the network scale, contributing valuable insights for upscaling global riverine GHG estimates. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
18. Greenhouse gas dynamics in river networks fragmented by drying and damming
- Author
-
Silverthorn, Teresa, primary, López‐Rojo, Naiara, additional, Foulquier, Arnaud, additional, Chanudet, Vincent, additional, and Datry, Thibault, additional
- Published
- 2023
- Full Text
- View/download PDF
19. Temperature and organic matter quantity drive CO2 and CH4 fluxes in isolated pools of non-perennial rivers
- Author
-
Silverthorn, Teresa, primary, Azougui, Abdelkader, additional, López-Rojo, Naiara, additional, Colas, Fanny, additional, Chanudet, Vincent, additional, and Datry, Thibault, additional
- Published
- 2023
- Full Text
- View/download PDF
20. Effects of two measures of riparian plant biodiversity on litter decomposition and associated processes in stream microcosms
- Author
-
López-Rojo, Naiara, Pérez, Javier, Basaguren, Ana, Pozo, Jesús, Rubio-Ríos, Juan, Casas, J. Jesús, and Boyero, Luz
- Published
- 2020
- Full Text
- View/download PDF
21. Impacts of diffuse urban stressors on stream benthic communities and ecosystem functioning: A review
- Author
-
Colls, Miriam, primary, Viza, Aida, additional, Zufiarre, Aitziber, additional, Camacho-Santamans, Alba, additional, Laini, Alex, additional, González-Ferreras, Alexia Maria, additional, Filipe, Ana Filipa, additional, Pérez-Calpe, Ana Victoria, additional, Freixa, Anna, additional, Lupon, Anna, additional, Santamans, Anna C., additional, Pradhan, Arunava, additional, Espinosa, Carmen, additional, Vera-Trujillo, Carmen, additional, Gutiérrez-Cánovas, Cayetano, additional, Mendoza-Lera, Clara, additional, Bruno, Daniel, additional, Mercado-Bettin, Daniel, additional, Morant, Daniel, additional, Batista, Daniela, additional, Cunillera-Montcusi, David, additional, Graça, Diana, additional, Vico-Oton, Eduard, additional, Estévez, Edurne, additional, Leon-Palmero, Elizabeth, additional, Suarez, Ena Lucia, additional, Fenoy, Encarnación, additional, Lima, Eva, additional, Picazo, Félix, additional, Oficialdegui, Francisco J., additional, Keck, François, additional, Gionchetta, Giulia, additional, Sabas, Ibor, additional, Pérez-Silos, Ignacio, additional, Antunes, Ilisa, additional, Alvarez-Manzaneda, Inmaculada, additional, de Guzmán, Ioar, additional, Fernandes, Isabel, additional, Pereira da Silva, Janine, additional, Wei, Jing, additional, Montes-Pérez, Jorge Juan, additional, Trabulo, José, additional, Ledesma, José L. J., additional, Fernandez-Calero, José Maria, additional, Ramião, José Pedro, additional, Rubio-Rios, Juan, additional, Gonzalez-Trujillo, Juan David, additional, Barral-Fraga, Laura, additional, Jiménez, Laura, additional, Vendrell-Puigmitja, Lidia, additional, Bertrans, Lluís, additional, Gomez-Gener, Lluís, additional, Rovelli, Lorenzo, additional, Thuile-Bistarelli, Lukas, additional, Sanchez-Morales, Marc, additional, Cabrerizo, Marco J., additional, Aranguren-Gassis, Maria, additional, Argudo, Maria, additional, Navarro-Ramos, Maria J., additional, Atristain, Miren, additional, Lopez-Rojo, Naiara, additional, Valiente, Nicolás, additional, Perujo, Nuria, additional, Pereda, Olatz, additional, Llanos-Paez, Oriana, additional, Belmar, Oscar, additional, Tascon-Peña, Osvaldo, additional, Rodriguez-Lozano, Pablo, additional, Sánchez de Pedro, Raquel, additional, Arias-Real, Rebeca, additional, Bolpagni, Rossano, additional, del Campo, Rubén, additional, Poblador, Silvia, additional, Guareschi, Simone, additional, Hilgert, Stephan, additional, Duarte, Sofia, additional, Rodriguez-Castillo, Tamara, additional, Chonova, Teofana, additional, Conejo-Orosa, Teresa, additional, Céspedes, Vanessa, additional, Granados, Verónica, additional, Osorio, Victor, additional, Vázquez, Víctor, additional, Martin-Vélez, Víctor, additional, and Romero, Ferran, additional
- Published
- 2023
- Full Text
- View/download PDF
22. Sustainable mold biomachining for the manufacturing of microfluidic devices
- Author
-
Santaolalla, Arrate, primary, Alvarez-Braña, Yara, additional, Barona, Astrid, additional, Basabe-Desmonts, Lourdes, additional, Benito-Lopez, Fernando, additional, and Rojo, Naiara, additional
- Published
- 2023
- Full Text
- View/download PDF
23. Downstream bioprocessing of CS2-polluted emissions: Innovative use of a black slag in mixed biofilters
- Author
-
Rojo, Naiara, Prenafeta-Boldú, Francesc X., Illa, Josep, Gallastegui, Gorka, Guivernau, Miriam, Elías, Ana, and Barona, Astrid
- Published
- 2015
- Full Text
- View/download PDF
24. A Unique Historical Case to Understand the Present Sustainable Development
- Author
-
Barona, Astrid, Etxebarria, Begoña, Aleksanyan, Aida, Gallastegui, Gorka, Rojo, Naiara, and Diaz-Tena, Estibaliz
- Published
- 2017
- Full Text
- View/download PDF
25. Functional consequences of alder and oak loss in stream ecosystems
- Author
-
Alonso, Alberto, primary, López‐Rojo, Naiara, additional, Pérez, Javier, additional, and Boyero, Luz, additional
- Published
- 2022
- Full Text
- View/download PDF
26. Multiple Intelligence Informed Resources for Addressing Sustainable Development Goals in Management Engineering
- Author
-
Etxebarria, Begoña, primary, Sánchez, Francisco, additional, Rojo, Naiara, additional, and Barona, Astrid, additional
- Published
- 2022
- Full Text
- View/download PDF
27. No evidence of biodiversity effects on stream ecosystem functioning across green and brown food web pathways
- Author
-
Biología vegetal y ecología, Landaren biologia eta ekologia, López Rojo, Naiara, Boyero González, María Luz, Pérez Viñuela, Javier, Basaguren del Campo, Ana Luisa, Cardinale, Bradley J., Biología vegetal y ecología, Landaren biologia eta ekologia, López Rojo, Naiara, Boyero González, María Luz, Pérez Viñuela, Javier, Basaguren del Campo, Ana Luisa, and Cardinale, Bradley J.
- Abstract
[EN] Biodiversity loss is known to affect the two fundamental and opposite processes controlling carbon and nutrient cycles globally, that is, primary production and decomposition, which are driven by green and brown food web compartments, respectively. However, biodiversity in these two food web compartments has been mostly studied independently, and potential reciprocal effects of biodiversity loss on ecosystem processes remain unclear. We conducted a 35-day stream mesocosm experiment with two levels of algal diversity (natural and diluted periphyton communities) and three levels of litter diversity (no litter, monocultures of poplar, maple, and oak, and the three-spp. mixture) to simulate changes in biodiversity in both the green and brown pathways of an aquatic food web. We then measured multiple ecosystem processes pertaining to carbon cycling. We predicted that algal diversity would enhance decomposition and sporulation of fungal decomposers, while litter diversity would enhance algal growth and net primary production, due to the more diverse algal exudates or litter nutrients being released from more diverse mixtures. In contrast to this hypothesis, we only found biodiversity effects on an ecosystem process within the green pathway: there was a relationship between algal diversity and biofilm carrying capacity. Nevertheless, we found that this relationship was affected by the presence or absence of litter (algal diversity increased the carrying capacity in presence of litter and decreased it in its absence), which also influenced the algal community structure. Our mesocosm experiment did not evidence relationships between biodiversity and ecosystem processes across different food web compartments, but further studies in more realistic conditions would be necessary to confirm this result. If supported, the lack of biodiversity-ecosystem functioning relationships across compartments would facilitate the prediction of the impacts of biodiversity loss on ecosyste
- Published
- 2022
28. Unibertsitate iraunkorragoaren alde: Vitoria-Gasteizko Ingeniaritza Eskolako hondakinen kudeaketaren azterketa
- Author
-
Rojo, Naiara, primary, Saralegi, Ainara, additional, and Alvarez, Jon, additional
- Published
- 2022
- Full Text
- View/download PDF
29. No evidence of biodiversity effects on stream ecosystem functioning across green and brown food web pathways
- Author
-
López‐Rojo, Naiara, primary, Boyero, Luz, additional, Pérez, Javier, additional, Basaguren, Ana, additional, and Cardinale, Bradley J., additional
- Published
- 2022
- Full Text
- View/download PDF
30. Role of Thiobacillus thioparus in the biodegradation of carbon disulfide in a biofilter packed with a recycled organic pelletized material
- Author
-
Prenafeta-Boldú, Francesc X., Rojo, Naiara, Gallastegui, Gorka, Guivernau, Miriam, Viñas, Marc, and Elías, Ana
- Published
- 2014
- Full Text
- View/download PDF
31. Metal Extraction and Recovery from Mobile Phone PCBs by a Combination of Bioleaching and Precipitation Processes
- Author
-
Santaolalla, Arrate, primary, Lens, Piet N. L., additional, Barona, Astrid, additional, Rojo, Naiara, additional, Ocio, Ainhoa, additional, and Gallastegui, Gorka, additional
- Published
- 2021
- Full Text
- View/download PDF
32. Litter decomposition can be reduced by pesticide effects on detritivores and decomposers: Implications for tropical stream functioning
- Author
-
Cornejo, Aydeé, primary, Pérez, Javier, additional, López-Rojo, Naiara, additional, García, Gabriela, additional, Pérez, Edgar, additional, Guerra, Alisson, additional, Nieto, Carlos, additional, and Boyero, Luz, additional
- Published
- 2021
- Full Text
- View/download PDF
33. Latitude dictates plant diversity effects on instream decomposition
- Author
-
Boyero, Luz, Pérez, Javier, López-Rojo, Naiara, Tonin, Alan M., and Swan, Christopher M.
- Abstract
Luz Boyero1,2,*, View ORCID ProfileJavier Pérez1, View ORCID ProfileNaiara López-Rojo1, View ORCID ProfileAlan M. Tonin3, View ORCID ProfileFrancisco Correa-Araneda4, View ORCID ProfileRichard G. Pearson5,6, View ORCID ProfileJaime Bosch7,8, Ricardo J. Albariño9, View ORCID ProfileSankarappan Anbalagan10, View ORCID ProfileLeon A. Barmuta11, View ORCID ProfileLeah Beesley12, View ORCID ProfileFrancis J. Burdon13, View ORCID ProfileAdriano Caliman14, View ORCID ProfileMarcos Callisto15, Ian C. Campbell16, Bradley J. Cardinale17, View ORCID ProfileJ. Jesús Casas18, View ORCID ProfileAna M. Chará-Serna19,20, Szymon Ciapała21, View ORCID ProfileEric Chauvet22, Checo Colón-Gaud23, View ORCID ProfileAydeé Cornejo24, View ORCID ProfileAaron M. Davis5, Monika Degebrodt25, Emerson S. Dias14, View ORCID ProfileMaría E. Díaz26, Michael M. Douglas27, View ORCID ProfileArturo Elosegi1, View ORCID ProfileAndrea C. Encalada28, View ORCID ProfileElvira de Eyto29, View ORCID ProfileRicardo Figueroa30, View ORCID ProfileAlexander S. Flecker31, View ORCID ProfileTadeusz Fleituch32, View ORCID ProfileAndré Frainer33,34, View ORCID ProfileJuliana S. França35, Erica A. García36, View ORCID ProfileGabriela García37, View ORCID ProfilePavel García38,39, View ORCID ProfileMark O. Gessner25,40, Paul S. Giller41, Jesús E. Gómez42, Sergio Gómez31, Jose F. Gonçalves Jr.3, View ORCID ProfileManuel A. S. Graça43, Robert O. Hall Jr.44, View ORCID ProfileNeusa Hamada45, View ORCID ProfileLuiz U. Hepp46, Cang Hui47,48, View ORCID ProfileDaichi Imazawa49, Tomoya Iwata50, Edson S. A. Junior51, Samuel Kariuki52, Andrea Landeira-Dabarca43,53, María Leal54, View ORCID ProfileKaisa Lehosmaa55, Charles M’Erimba52, Richard Marchant56, View ORCID ProfileRenato T. Martins45, View ORCID ProfileFrank O. Masese57, View ORCID ProfileMegan Camden58, View ORCID ProfileBrendan G. McKie13, Adriana O. Medeiros51, View ORCID ProfileJen A. Middleton12, Timo Muotka55, Junjiro N. Negishi59, Jesús Pozo1, View ORCID ProfileAlonso Ramírez60, View ORCID ProfileRenan S. Rezende61, View ORCID ProfileJohn S. Richardson62, José Rincón54, View ORCID ProfileJuan Rubio-Ríos18, Claudia Serrano29, Angela R. Shaffer23, View ORCID ProfileFran Sheldon63, Christopher M. Swan64, Nathalie S. D. Tenkiano65, View ORCID ProfileScott D. Tiegs58, Janine R. Tolod66, Michael Vernasky63, View ORCID ProfileAnne Watson11, Mourine J. Yegon57 and View ORCID ProfileCatherine M. Yule67, 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
- Full Text
- View/download PDF
34. Reverse-flow strategy in biofilters treating CS2 emissions
- Author
-
Rojo, Naiara, Gallastegui, Gorka, Gurtubay, Luis, Barona, Astrid, and Elías, Ana
- Published
- 2013
- Full Text
- View/download PDF
35. EDUCATION FOR SUSTAINABLE DEVELOPMENT: AWARENESS AND WASTE MANAGEMENT IMPROVEMENT AT THE UNIVERSITY CAMPUS OF ALAVA
- Author
-
Saralegi, Ainara, primary, Rojo, Naiara, additional, Alvarez, Jon, additional, Peña, Sonia, additional, Gomez-de-Balugera, Zuriñe, additional, and Encinas, Dolores, additional
- Published
- 2021
- Full Text
- View/download PDF
36. Latitude dictates plant diversity effects on instream decomposition
- Author
-
Boyero, Luis, Pérez, Javier, López-Rojo, Naiara, Tonin, Alan M., Correa-Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Eusko Jaurlaritza, European Commission, and Fundação para a Ciência e a Tecnologia (Portugal)
- 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., This study was part of the DecoDiv project conducted by the GLoBE network (www.globenetwork.es), which is coordinated by L.B. Most research was based on crowdfunding (details on specific funding sources at each region are given in the Supplementary Materials). Project coordination was funded by Basque Government funds (ref. IT951-16) to the Stream Ecology Group (UPV/EHU, Spain). Litter trait analyses were funded by the 2014–2020 Operational Programme FEDER Andalusia, Spain (ref. UAL18-RNM-B006-B to J.J.C.) and the Portuguese Science Foundation, Portugal (ref. UIDB/04292/2020 to MARE).
- Published
- 2021
- Full Text
- View/download PDF
37. Microplastics increase susceptibility of amphibian larvae to the chytrid fungus Batrachochytrium dendrobatidis
- Author
-
Biología vegetal y ecología, Landaren biologia eta ekologia, Bosch, Jaime, Thumsová, Barbora, López Rojo, Naiara, Pérez Viñuela, Javier, Alonso Blanco, Alberto, Fisher, Matthew C., Boyero González, María Luz, Biología vegetal y ecología, Landaren biologia eta ekologia, Bosch, Jaime, Thumsová, Barbora, López Rojo, Naiara, Pérez Viñuela, Javier, Alonso Blanco, Alberto, Fisher, Matthew C., and Boyero González, María Luz
- Abstract
[EN]Microplastics (MPs), a new class of pollutants that pose a threat to aquatic biodiversity, are of increasing global concern. In tandem, the amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd) causing the disease chytridiomycosis is emerging worldwide as a major stressor to amphibians. We here assess whether synergies exist between this infectious disease and MP pollution by mimicking natural contact of a highly susceptible species (midwife toads, Alytes obstetricans) with a Bd-infected reservoir species (fire salamanders, Salamandra salamandra) in the presence and absence of MPs. We found that MP ingestion increases the burden of infection by Bd in a dose-dependent manner. However, MPs accumulated to a greater extent in amphibians that were not exposed to Bd, likely due to Bd-damaged tadpole mouthparts interfering with MP ingestion. Our experimental approach showed compelling interactions between two emergent processes, chytridiomycosis and MP pollution, necessitating further research into potential synergies between these biotic and abiotic threats to amphibians.
- Published
- 2021
38. Effects of gamma irradiation on instream leaf litter decomposition
- Author
-
Biología vegetal y ecología, Landaren biologia eta ekologia, Boyero González, María Luz, López Rojo, Naiara, Pérez Viñuela, Javier, Tonin, Alan M., Correa Araneda, Francisco, Davis, Aaron M., Pearson, Richard G., Biología vegetal y ecología, Landaren biologia eta ekologia, Boyero González, María Luz, López Rojo, Naiara, Pérez Viñuela, Javier, Tonin, Alan M., Correa Araneda, Francisco, Davis, Aaron M., and Pearson, Richard G.
- Abstract
[EN]Leaf litter decomposition is a key process in stream ecosystems, the rates of which can vary with changes in litter quality or its colonization by microorganisms. Decomposition in streams is increasingly used to compare ecosystem functioning globally, often requiring the distribution of litter across countries. It is important to understand whether litter sterilization, which is required by some countries, can alter the rates of decomposition and associated processes. We examined whether litter sterilization with gamma irradiation (25 kGy) influenced decomposition rates, litter stoichiometry, and colonization by invertebrates after weeks of instream incubation within coarse-mesh and fine-mesh litterbags. We used nine plant species from three families that varied widely in litter chemistry but found mostly consistent responses, with no differences in decomposition rates or numbers of invertebrates found at the end of the incubation period. However, litter stoichiometry differed between irradiated and control litter, with greater nutrient losses (mostly phosphorus) in the former. Therefore, the effects of irradiation on litter chemistry should be taken into account in studies focused on stoichiometry but not necessarily in those focused on decomposition rates, at least within the experimental timescale considered here.
- Published
- 2021
39. Key plant species and detritivores drive diversity effects on instream leaf litter decomposition more than functional diversity: A microcosm study
- Author
-
Biología vegetal y ecología, Landaren biologia eta ekologia, Rubio-Ríos, J., Pérez Viñuela, Javier, Salinas, M.J., Fenoy, E., López Rojo, Naiara, Boyero González, María Luz, Casas, J.J., Biología vegetal y ecología, Landaren biologia eta ekologia, Rubio-Ríos, J., Pérez Viñuela, Javier, Salinas, M.J., Fenoy, E., López Rojo, Naiara, Boyero González, María Luz, and Casas, J.J.
- Abstract
Anthropogenic impacts on freshwater ecosystems cause critical losses of biodiversity that can in turn impair key processes such as decomposition and nutrient cycling. Forest streams are mainly subsidized by terrestrial organic detritus, so their functioning and conservation status can be altered by changes in forest biodiversity and composition, particularly if these changes involve the replacement of functional groups or the loss of key species. We examined this issue using a microcosm experiment where we manipulated plant functional diversity (FD) (monocultures and low-FD and high-FD mixtures, resulting from different combinations of deciduous and evergreen Quercus species) and the presence of a key species (Alnus glutinosa), all in presence and absence of detritivores, and assessed effects on litter decomposition, nutrient cycling, and fungal and detritivore biomass. We found (i) positive diversity effects on detritivore-mediated decomposition, litter nutrient losses and detritivore biomass exclusively when A. glutinosa was present; and (ii) negative effects on the same processes when microbially mediated and on fungal biomass. Most positive trends could be explained by the higher litter palatability and litter trait variability obtained with the inclusion of alder leaves in the mixture. Our results support the hypothesis of a consistent slowing down of the decomposition process as a result of plant biodiversity loss, and hence effects on stream ecosystem functioning, especially when a key (N-fixing) species is lost; and underscore the importance of detritivores as drivers of plant diversity effects in the studied ecosystem processes.
- Published
- 2021
40. Impacts of Detritivore Diversity Loss on Instream Decomposition Are Greatest in the Tropics
- Author
-
Biología vegetal y ecología, Landaren biologia eta ekologia, Boyero González, María Luz, López Rojo, Naiara, Tonin, Alan M., Pérez Viñuela, Javier, Correa Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Albariño, Ricardo J., Anbalagan, Sankarappan, Barmuta, Leon A., Basaguren del Campo, Ana Luisa, Burdon, Francis J., Caliman, Adriano, Callisto, Marcos, Calor, Adolfo R., Campbell, Ian C., Cardinale, Bradley J., Casas Jiménez, José Jesús, Chara Serna, Ana M., Chauvet, Eric, Ciapala, Szymon, Colón-Gaud, Checo, Cornejo, Aydeé, Davis, Aaron M., Degebrodt, Monika, Dias, Emerson S., Díaz, María E., Douglas, Michael M., Encalada, Andrea C., Figueroa, Ricardo, Flecker, Alexander S., Fleituch, Tadeusz, García, Erica A., García, Gabriela, García, Pavel E., Gessner, Mark O., Gómez, Jesús E., Gómez, Sergio, Gonçalves Jr., José F., Graça, Manuel A. S., Gwinn, Daniel C., Hall Jr., Robert O., Hamada, Neusa, Hui, Cang, Imazawa, Daichi, Iwata, Tomoya, Kariuki, Samuel, Landeira-Dabarca, Andrea, Laymon, Kelsey, Leal, María, Marchant, Richard, Martins, Renato T., Masese, Frank O., Maul, Megan, McKie, Brendan G., Medeiros, Adriana O., M'Erimba, Charles, Middleton, Jen A., Monroy Zarzuelo, Silvia, Muotka, Timo, Negishi, Junjiro N., Ramírez, Alonso, Richardson, John S., Rincón, José, Rubio Ríos, Juan, Dos Santos, Gisele M., Sarremejane, Romain, Sheldon, Fran, Sitati, Augustine, Tenkiano, Nathalie S. D., Tiegs, Scott D., Tolod, Janine R., Venarsky, Michael, Watson, Anne, Yule, Catherine M., Biología vegetal y ecología, Landaren biologia eta ekologia, Boyero González, María Luz, López Rojo, Naiara, Tonin, Alan M., Pérez Viñuela, Javier, Correa Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Albariño, Ricardo J., Anbalagan, Sankarappan, Barmuta, Leon A., Basaguren del Campo, Ana Luisa, Burdon, Francis J., Caliman, Adriano, Callisto, Marcos, Calor, Adolfo R., Campbell, Ian C., Cardinale, Bradley J., Casas Jiménez, José Jesús, Chara Serna, Ana M., Chauvet, Eric, Ciapala, Szymon, Colón-Gaud, Checo, Cornejo, Aydeé, Davis, Aaron M., Degebrodt, Monika, Dias, Emerson S., Díaz, María E., Douglas, Michael M., Encalada, Andrea C., Figueroa, Ricardo, Flecker, Alexander S., Fleituch, Tadeusz, García, Erica A., García, Gabriela, García, Pavel E., Gessner, Mark O., Gómez, Jesús E., Gómez, Sergio, Gonçalves Jr., José F., Graça, Manuel A. S., Gwinn, Daniel C., Hall Jr., Robert O., Hamada, Neusa, Hui, Cang, Imazawa, Daichi, Iwata, Tomoya, Kariuki, Samuel, Landeira-Dabarca, Andrea, Laymon, Kelsey, Leal, María, Marchant, Richard, Martins, Renato T., Masese, Frank O., Maul, Megan, McKie, Brendan G., Medeiros, Adriana O., M'Erimba, Charles, Middleton, Jen A., Monroy Zarzuelo, Silvia, Muotka, Timo, Negishi, Junjiro N., Ramírez, Alonso, Richardson, John S., Rincón, José, Rubio Ríos, Juan, Dos Santos, Gisele M., Sarremejane, Romain, Sheldon, Fran, Sitati, Augustine, Tenkiano, Nathalie S. D., Tiegs, Scott D., Tolod, Janine R., Venarsky, Michael, Watson, Anne, and Yule, Catherine M.
- Abstract
The relationship between detritivore diversity and decomposition can provide information on how biogeochemical cycles are affected by ongoing rates of extinction, but such evidence has come mostly from local studies and microcosm experiments. We conducted a globally distributed experiment (38 streams across 23 countries in 6 continents) using standardised methods to test the hypothesis that detritivore diversity enhances litter decomposition in streams, to establish the role of other characteristics of detritivore assemblages (abundance, biomass and body size), and to determine how patterns vary across realms, biomes and climates. We observed a positive relationship between diversity and decomposition, strongest in tropical areas, and a key role of abundance and biomass at higher latitudes. Our results suggest that litter decomposition might be altered by detritivore extinctions, particularly in tropical areas, where detritivore diversity is already relatively low and some environmental stressors particularly prevalent.
- Published
- 2021
41. Latitude Dictates Plant Diversity Effects on Instream Decomposition
- Author
-
Biología vegetal y ecología, Landaren biologia eta ekologia, Boyero González, María Luz, Pérez, Javier, López Rojo, Naiara, Tonin, Alan M., Correa Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Albariño, Ricardo J., Anbalagan, Sankarappan, Barmuta, Leon A., Beesley, Leah, Burdon, Francis J., Caliman, Adriano, Callisto, Marcos, Campbell, Ian C., Cardinale, Bradley J., Casas Jiménez, José Jesús, Chara Serna, Ana M., Ciapala, Szymon, Chauvet, Eric, Colón-Gaud, Checo, Cornejo, Aydeé, Davis, Aaron M., Degebrodt, Monika, Dias, Emerson S., Díaz, María E., Douglas, Michael M., Elosegi Irurtia, Arturo, Encalada, Andrea C., De Eyto, Elvira, Figueroa, Ricardo, Flecker, Alexander S., Fleituch, Tadeusz, Frainer, André, Franca, Juliana S., García, Erica A., García, Gabriela, García, Pavel, Gessner, Mark O., Giller, Paul S., Gómez, Jesús E., Gómez, Sergio, Gonçalves Jr., José F., Graça, Manuel A. S., Hall Jr., Robert O., Hamada, Neusa, Hepp, Luiz U., Hui, Cang, Imazawa, Daichi, Iwata, Tomoya, Edson Jr., S. A., Kariuki, Samuel, Landeira-Dabarca, Andrea, Leal, María, Lehosmaa, Kaisa, M'Erimba, Charles, Marchant, Richard, Martins, Renato T., Masese, Frank O., Camden, Megan, McKie, Brendan G., Medeiros, Adriana O., Middleton, Jen A., Muotka, Timo, Negishi, Junjiro N., Pozo Martínez, Jesús, Ramírez, Alonso, Rezende, Renan S., Richardson, John S., Rincón, José, Rubio Ríos, Juan, Serrano, Claudia, Shaffer, Angela R., Sheldon, Fran, Swan, Christopher M., Tenkiano, Nathalie S. D., Tiegs, Scott D., Tolod, Janine R., Vernasky, Michael, Watson, Anne, Yegon, Mourine J., Yule, Catherine M., Biología vegetal y ecología, Landaren biologia eta ekologia, Boyero González, María Luz, Pérez, Javier, López Rojo, Naiara, Tonin, Alan M., Correa Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Albariño, Ricardo J., Anbalagan, Sankarappan, Barmuta, Leon A., Beesley, Leah, Burdon, Francis J., Caliman, Adriano, Callisto, Marcos, Campbell, Ian C., Cardinale, Bradley J., Casas Jiménez, José Jesús, Chara Serna, Ana M., Ciapala, Szymon, Chauvet, Eric, Colón-Gaud, Checo, Cornejo, Aydeé, Davis, Aaron M., Degebrodt, Monika, Dias, Emerson S., Díaz, María E., Douglas, Michael M., Elosegi Irurtia, Arturo, Encalada, Andrea C., De Eyto, Elvira, Figueroa, Ricardo, Flecker, Alexander S., Fleituch, Tadeusz, Frainer, André, Franca, Juliana S., García, Erica A., García, Gabriela, García, Pavel, Gessner, Mark O., Giller, Paul S., Gómez, Jesús E., Gómez, Sergio, Gonçalves Jr., José F., Graça, Manuel A. S., Hall Jr., Robert O., Hamada, Neusa, Hepp, Luiz U., Hui, Cang, Imazawa, Daichi, Iwata, Tomoya, Edson Jr., S. A., Kariuki, Samuel, Landeira-Dabarca, Andrea, Leal, María, Lehosmaa, Kaisa, M'Erimba, Charles, Marchant, Richard, Martins, Renato T., Masese, Frank O., Camden, Megan, McKie, Brendan G., Medeiros, Adriana O., Middleton, Jen A., Muotka, Timo, Negishi, Junjiro N., Pozo Martínez, Jesús, Ramírez, Alonso, Rezende, Renan S., Richardson, John S., Rincón, José, Rubio Ríos, Juan, Serrano, Claudia, Shaffer, Angela R., Sheldon, Fran, Swan, Christopher M., Tenkiano, Nathalie S. D., Tiegs, Scott D., Tolod, Janine R., Vernasky, Michael, Watson, Anne, Yegon, Mourine J., and Yule, 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 degrees 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
42. Litter Decomposition can be Reduced by Pesticide Effects on Detritivores and Decomposers: Implications for Tropical Stream Functioning
- Author
-
Biología vegetal y ecología, Landaren biologia eta ekologia, Cornejo, Aydeé, Pérez Viñuela, Javier, López Rojo, Naiara, García, Gabriela, Pérez, Edgar, Guerra, Alisson, Nieto, Carlos, Boyero González, María Luz, Biología vegetal y ecología, Landaren biologia eta ekologia, Cornejo, Aydeé, Pérez Viñuela, Javier, López Rojo, Naiara, García, Gabriela, Pérez, Edgar, Guerra, Alisson, Nieto, Carlos, and Boyero González, María Luz
- Abstract
Understanding which factors affect the process of leaf litter decomposition is crucial if we are to predict changes in the functioning of stream ecosystems as a result of human activities. One major activity with known consequences on streams is agriculture, which is of particular concern in tropical regions, where forests are being rapidly replaced by crops. While pesticides are potential drivers of reduced decomposition rates observed in agricultural tropical streams, their specific effects on the performance of decomposers and detritivores are mostly unknown. We used a microcosm experiment to examine the individual and joint effects of an insecticide (chlorpyrifos) and a fungicide (chlorothalonil) on survival and growth of detritivores (Anchytarsus, Hyalella and Lepidostoma), aquatic hyphomycetes (AH) sporulation rate, taxon richness, assemblage structure, and leaf litter decomposition rates. Our results revealed detrimental effects on detritivore survival (which were mostly due to the insecticide and strongest for Hyalella), changes in AH assemblage structure, and reduced sporulation rate, taxon richness and microbial decomposition (mostly in response to the fungicide). Total decomposition was reduced especially when the pesticides were combined, suggesting that they operated differently and their effects were additive. Importantly, effects on decomposition were greater for single-species detritivore treatments than for the 3-species mixture, indicating that detritivore species loss may exacerbate the consequences of pesticides of stream ecosystem functioning.
- Published
- 2021
43. Extreme temperature events alter stream ecosystem functioning
- Author
-
Biología vegetal y ecología, Landaren biologia eta ekologia, Pérez Viñuela, Javier, Correa Araneda, Francisco, López Rojo, Naiara, Basaguren del Campo, Ana Luisa, Boyero González, María Luz, Biología vegetal y ecología, Landaren biologia eta ekologia, Pérez Viñuela, Javier, Correa Araneda, Francisco, López Rojo, Naiara, Basaguren del Campo, Ana Luisa, and Boyero González, María Luz
- Abstract
Extreme temperature events have increased in intensity, duration and frequency in the last century, with potential consequences on organisms and ecosystems. In many streams, leaf litter of terrestrial origin is a key resource for microorganisms and some detritivores, and its decomposition has a main role on ecosystem functioning and is often used as an indicator of ecological integrity. As litter is often exposed to atmospheric conditions before entering the stream, extreme warming and freezing events may alter its physicochemical structure and affect decomposition and associated detritivores. We tested this prediction in a microcosm experiment by exposing litter of three tree species (in single-species treatments and the 3-species mixture) to different temperature pre-treatments: heating (40 degrees C), freezing ( - 20 degrees C) and both (heating followed by freezing). We then examined changes in litter traits due to leaching (72 h), litter decomposition in the absence and presence of detritivores, and detritivore growth (28 d), with focus on mass and nutrient (nitrogen and phosphorus) changes. Nutrient leaching was promoted mostly by the heating pre-treatment, which apparently produced lower-quality litter. However, microbial activity mostly resulted in litter mass and nutrient gain, which were reinforced by the heating pre-treatment, while freezing had the opposite effect. When detritivores were present, decomposition showed high variation among litter types but, again, the heating and freezing pre-treatments tended to reduce and enhance nutrient loss, respectively. The greatest and more consistent effects occurred for detritivore growth, which was reduced by temperature pre-treatments, particularly in the highest-quality litter type. In general, the sequential application of heating and freezing pre-treatments showed no synergistic effect, and the litter mixture showed similar responses to single-species treatments. Our results demonstrate that short-term extre
- Published
- 2021
44. Microplastics increase susceptibility of amphibian larvae to the chytrid fungus Batrachochytrium dendrobatidis
- Author
-
Ministerio de Ciencia e Innovación (España), Eusko Jaurlaritza, Natural Environment Research Council (UK), Bosch, Jaime, Thumsová, Barbora, López‑Rojo, Naiara, Pérez, Javier, Alonso, Alberto, Fisher, Matthew C., Boyero, Luz, Ministerio de Ciencia e Innovación (España), Eusko Jaurlaritza, Natural Environment Research Council (UK), Bosch, Jaime, Thumsová, Barbora, López‑Rojo, Naiara, Pérez, Javier, Alonso, Alberto, Fisher, Matthew C., and Boyero, Luz
- Abstract
Microplastics (MPs), a new class of pollutants that pose a threat to aquatic biodiversity, are of increasing global concern. In tandem, the amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd) causing the disease chytridiomycosis is emerging worldwide as a major stressor to amphibians. We here assess whether synergies exist between this infectious disease and MP pollution by mimicking natural contact of a highly susceptible species (midwife toads, Alytes obstetricans) with a Bd-infected reservoir species (fire salamanders, Salamandra salamandra) in the presence and absence of MPs. We found that MP ingestion increases the burden of infection by Bd in a dose‑dependent manner. However, MPs accumulated to a greater extent in amphibians that were not exposed to Bd, likely due to Bd‑damaged tadpole mouthparts interfering with MP ingestion. Our experimental approach showed compelling interactions between two emergent processes, chytridiomycosis and MP pollution, necessitating further research into potential synergies between these biotic and abiotic threats to amphibians.
- Published
- 2021
45. Loss of Key Riparian Plant SpeciesImpacts Stream Ecosystem Functioning
- Author
-
Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Eusko Jaurlaritza, Alonso, Alberto, Pérez, Javier, Monroy, Silvia, López-Rojo, Naiara, Basaguren, Ana, Bosch, Jaime, Boyero, Luz, Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Eusko Jaurlaritza, Alonso, Alberto, Pérez, Javier, Monroy, Silvia, López-Rojo, Naiara, Basaguren, Ana, Bosch, Jaime, and Boyero, Luz
- Abstract
Leaf litter of alder (Alnus glutinosa) is a key resource to detrital stream food webs. Due to its high quality and palatability, it is readily colonised by microorganisms and consumed by detritivores, contributing significantly to carbon and nutrient cycling and to ecosystem functioning. Given that this species has declined due to the spread of the pathogen Phytophthora alni, we investigated how its loss would alter leaf litter decomposition and associated stream assemblages of aquatic hyphomycetes and invertebrates, in a field experiment conducted in three streams. We compared litter mixtures containing alder plus three other species (Corylus avellana, Quercus robur and Salix atrocinerea; that is, 4-species treatments) with mixtures that excluded alder (3-species treatments) and all the monocultures (1-species treatments). The loss of alder reduced decomposition rates, despite the existence of an overall negative diversity effect after 3 weeks of exposure (that is, monocultures decomposed faster than mixtures) and no diversity effect after 6 weeks. Aquatic hyphomycete and detritivore assemblage structure in the mixture without alder differed from those of the mixture with alder and the monocultures, and the former had lower fungal sporulation rate and taxon richness. Our results suggest that alder loss from the riparian vegetation can significantly slow down the processing of organic matter in streams and produce shifts in stream assemblages, with potential consequences on overall ecosystem functioning. We highlight the importance of assessing the ecological consequences of losing single species, particularly those especially vulnerable to stressors, to complement the multiple studies that have assessed the effects of random species loss.
- Published
- 2021
46. Latitude dictates plant diversity effects on instream decomposition
- Author
-
Eusko Jaurlaritza, European Commission, Fundação para a Ciência e a Tecnologia (Portugal), Boyero, Luis, Pérez, Javier, López-Rojo, Naiara, Tonin, Alan M., Correa-Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Eusko Jaurlaritza, European Commission, Fundação para a Ciência e a Tecnologia (Portugal), Boyero, Luis, Pérez, Javier, López-Rojo, Naiara, Tonin, Alan M., Correa-Araneda, Francisco, Pearson, Richard G., and Bosch, Jaime
- 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
47. Impacts of detritivore diversity loss on instream decomposition are greatest in the tropics
- Author
-
Eusko Jaurlaritza, Universidad del País Vasco, Boyero, Luz, López-Rojo, Naiara, Tonin, Alan M., Pérez, Javier, Correa-Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Eusko Jaurlaritza, Universidad del País Vasco, Boyero, Luz, López-Rojo, Naiara, Tonin, Alan M., Pérez, Javier, Correa-Araneda, Francisco, Pearson, Richard G., and Bosch, Jaime
- Abstract
he relationship between detritivore diversity and decomposition can provide information on how biogeochemical cycles are affected by ongoing rates of extinction, but such evidence has come mostly from local studies and microcosm experiments. We conducted a globally distributed experiment (38 streams across 23 countries in 6 continents) using standardised methods to test the hypothesis that detritivore diversity enhances litter decomposition in streams, to establish the role of other characteristics of detritivore assemblages (abundance, biomass and body size), and to determine how patterns vary across realms, biomes and climates. We observed a positive relationship between diversity and decomposition, strongest in tropical areas, and a key role of abundance and biomass at higher latitudes. Our results suggest that litter decomposition might be altered by detritivore extinctions, particularly in tropical areas, where detritivore diversity is already relatively low and some environmental stressors particularly prevalent.
- Published
- 2021
48. Biotechnology as an alternative for carbon disulfide treatment in air pollution control
- Author
-
Rojo, Naiara, Gallastegi, Gorka, Barona, Astrid, Gurtubay, Luis, Ibarra-Berastegi, Gabriel, and Ellas, Ana
- Subjects
Carbon disulfide -- Environmental aspects ,Bioreactors -- Usage ,Biotechnology -- Research ,Air quality management -- Methods ,Environmental issues - Abstract
Biotechnology has emerged as an affordable, effective, and eco-friendly alternative to treat carbon disulfide ([CS.sub.2]) containing waste gases. Carbon disulfide is a chemical of widespread use both in the past and in the present. Its industry demand has dramatically changed over the last two decades and is expected to grow in future in step with those industries involving fibre, mining, rubber products, and the agro-chemical sector. This compound, classified as a hazardous air pollutant about 20 years ago, has been re-appraised, as increasingly restrictive pollution standards are expected to be introduced. An array of physical-chemical technologies for treating [CS.sub.2] containing air are already in use, but they have a series of drawbacks, such as high energy consumption (incineration, thermal oxidation), the immobilization of the contaminant solely from one phase to another (adsorption), and the generation of secondary by-products that require additional treatment (hydrolysis). Thus, technological research on affordable processing alternatives is of considerable interest for related industries using or producing [CS.sub.2]. The biological technologies whose efficiency is based on the activity of microorganisms to biodegrade air pollutants overcome many of the disadvantages of conventional techniques and are especially useful for the removal of relatively low concentrations of pollutants. In this paper, the main properties, sources, and uses of [CS.sub.2] are summarized, and alternative biotreatments for [CS.sub.2] are reviewed. Several applications of the technical and economical feasibility of biofilters and biotrickling filters are shown, although their widespread industrial application still requires further research. Key words: carbon disulfide, bioreactors, air pollution control, biotechnology, industrial emissions. La biotechnologie devient une alternative abordable, efficace et eecologiquement acceptable pour traiter les deechets gazeux contenant du disulfure de carbone ([CS.sub.2]). Le [CS.sub.2] est une substance chimique d'utilisation tresrepandue dans le passe; aussi bien que presentement. Sa demande industrielle a fortement change; au cours des deux dernieeres decades et l'on s'attend a ce qu'elle prenne de l'expansion dans le future, de concert avec l'engagement de ces industries dans les secteurs de la fibre, des mines, des produits du caoutchouc et du secteur agrochimique. Ce compose, classified comme dangereux polluant de l'air il y a environ 20 ans a ete reeevalue, car on s'attend a l'introduction de nouveaux standards de plus en plus restrictifs de pollution. On utilise deja un ensemble de technologies physico-chimiques pour traiter l'air contenant du [CS.sub.2], mais ils preesentent des probleemes comme une forte consommation d'energie (incineration, oxydation thermique) l'immobilisation du contaminant uniquement d'une phase a une autre (adsorption) et la generation de produits secondaires qui neecessitent un traitement additionnel (hydrolyses). Ainsi, la recherche technologique de procedes alternatifs abordables presente un inteeret considerable pour les industries utilisant ou produisant du disulfure de carbone. Les techniques biologiques, dont l'efficacite est basee sur l'activite de microorganismes degradant les polluants de l'air, evitent plusieurs des desavantages des techniques conventionnelles et deviennent particulieerement utiles pour eeliminer les contaminants a faibles concentrations. Les auteurs passent en revue et reesument les principales proprietees ainsi que les sources et les usages du [CS.sub.2], et examinent les traitements biologiques alternatifs. On presente plusieurs applications de la faisabilite technique et economique des biofiltres et des filtres par biotrickling, bien que leurs applications industrielles generaliseees demandent encore des recherches. Mots-cles: disulfide de carbone, bioreeacteurs, controle de la pollution de l'air, biotechnologie, emissions industrielles. [Traduit par la Redaction], 1. Introduction Carbon disulfide ([CS.sub.2], CAS Reg. No. 75-15-0) is also known as carbon bisulphide or dithiocarbonic anhydride (ATSDR 1996). Carbon disulfide is a colourless to faintly yellow liquid. The [...]
- Published
- 2010
- Full Text
- View/download PDF
49. Preliminary acclimation strategies for successful startup in conventional biofilters
- Author
-
Elias, Ana, Barona, Astrid, Gallastegi, Gorka, Rojo, Naiara, Gurtubay, Luis, and Ibarra-Berastegi, Gabriel
- Subjects
Water treatment plants -- Equipment and supplies ,Biofiltration -- Analysis ,Environmental services industry ,Environmental issues ,Science and technology - Abstract
ABSTRACT The question of how to obtain the best inocula for conventional biofilters arises when an acclimation/adaptation procedure is to be applied. Bearing in mind that no standardized procedure for [...]
- Published
- 2010
- Full Text
- View/download PDF
50. Web-Scraping Teknikan Oinarritutako Azpiegitura Informatikoak. Xerka Online eta Minerva aplikazioak
- Author
-
Fernandez-Gauna, Borja, primary, Rojo, Naiara, additional, and Fernandez-Gamiz, Unai, additional
- Published
- 2021
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.