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11 results on '"0000-0002-2983-3335"'

1. Integrating spatiotemporal hydrological connectivity into conservation planning to protect temporary rivers

Author

0000-0003-0095-1765, 0000-0001-8666-346X, 0000-0003-3205-5033, 0000-0002-0564-0184, 0000-0002-2198-3486, 0000-0003-0923-8237, 0000-0002-9997-5523, 0000-0003-2808-769X, 0000-0003-4011-6457, 0000-0003-3864-7451, 0000-0002-2983-3335, Fernández-Calero, José María, Cunillera-Montcusí, David, Hermoso, Virgilio, Quevedo-Ortiz, Guillermo, Fortuño, Pau, Acosta, Raúl, Gomà, Joan, Cid, Núria, Vinyoles, Dolors, Ruhí, Albert, Cañedo-Argüelles, Miguel, Bonada, Núria, 0000-0003-0095-1765, 0000-0001-8666-346X, 0000-0003-3205-5033, 0000-0002-0564-0184, 0000-0002-2198-3486, 0000-0003-0923-8237, 0000-0002-9997-5523, 0000-0003-2808-769X, 0000-0003-4011-6457, 0000-0003-3864-7451, 0000-0002-2983-3335, Fernández-Calero, José María, Cunillera-Montcusí, David, Hermoso, Virgilio, Quevedo-Ortiz, Guillermo, Fortuño, Pau, Acosta, Raúl, Gomà, Joan, Cid, Núria, Vinyoles, Dolors, Ruhí, Albert, Cañedo-Argüelles, Miguel, and Bonada, Núria

Abstract

Temporary rivers (TRs) have been largely overlooked in conservation assessments. Because TRs are such dynamic ecosystems, spatial and temporal aspects of their hydrology and ecology need to be taken into account when designing conservation plans. The aim of this paper is to propose a set of recommendations that could be useful for managers to do this, using seasonal diatom and macroinvertebrate data from north-eastern Spain as a case study. Beta diversity was partitioned into local and species contributions to beta diversity (LCBD and SCBD). Additionally, priority conservation sites covering the spatial distribution of all species were identified using Marxan and the selection frequency (MSF) of the sites served as a measure of the relative irreplaceability of each site. Using both approaches (beta diversity and Marxan), the effects of changing spatiotemporal connectivity and habitat heterogeneity on the selection and prioritization of sites to be conserved were assessed. It was found that LCBD and MSF ranged widely both in space and time. However, LCBD and MSF were weakly related. Marxan adequately represented all taxa by selecting a few sites, while LCBD selected communities with higher differentiation but not necessarily those with rare species. In addition, SCBDs assigned low values to rare taxa, thus care must be taken when using this index for conservation planning. Spatiotemporal connectivity and local habitat heterogeneity played a critical role at the regional and local scales, driving site prioritization. Overall, we recommend: 1) monitoring multiple hydrological phases to encompass the different community types and capturing total diversity; 2) using Marxan and LCBD in combination, to benefit from their complementary insights; and 3) integrating spatiotemporal isolation and habitat heterogeneity into conservation plans, since they are the main drivers of community variation over space and time in TRs.

Published
2024

2. Multi-decadal improvements in the ecological quality of European rivers are not consistently reflected in biodiversity metrics

Author

0000-0003-0787-7342, 0000-0001-6944-3422, 0000-0002-4831-6958, 0000-0001-7948-106X, 0000-0003-1897-2636, 0000-0002-4695-5932, 0000-0002-2983-3335, 0000-0003-3864-7451, 0000-0003-1700-2574, 0000-0003-2281-2491, 0000-0003-2962-7387, 0000-0003-0209-4648, 0000-0003-2033-6399, 0000-0002-6358-8011, 0000-0003-0362-6802, 0000-0001-6740-3654, 0000-0002-4952-5807, 0000-0001-6675-4751, 0000-0001-6326-5653, 0000-0003-0488-1274, 0000-0002-6349-9561, 0000-0001-7979-6563, 0000-0003-0239-9468, 0000-0002-0185-9154, 0000-0002-3262-6396, 0009-0006-6199-9200, 0000-0002-4708-1413, 0000-0002-4714-0305, 0000-0002-7471-997X, 0000-0003-1848-3154, 0000-0002-5932-3125, 0000-0001-8839-5913, 0000-0002-5861-7551, 0000-0001-8475-5109, 0000-0002-9315-7773, 0000-0002-5603-271X, 0000-0002-0977-5975, 0000-0002-7385-8302, 0000-0002-9340-0438, Sinclair, James S., Welti, Ellen A. R., Altermatt, Florian, Álvarez-Cabria, Mario, Aroviita, Jukka, Baker, Nathan J., Barešová, Libuše, Barquín, José, Bonacina, Luca, Bonada, Núria, Cañedo-Argüelles, Miguel, Csabai, Zoltán, de Eyto, Elvira, Dohet, Alain, Dörflinger, Gerald, Eriksen, Tor E., Evtimova, Vesela, Feio, Maria J., Ferréol, Martial, Floury, Mathieu, Forio, Marie Anne Eurie, Fornaroli, Riccardo, Goethals, Peter L. M., Heino, Jani, Hering, Daniel, Huttunen, Kaisa-Leena, Jähnig, Sonja C., Johnson, Richard K., Kuglerová, Lenka, Kupilas, Benjamin, L'Hoste, Lionel, Larrañaga, Aitor, Leitner, Patrick, Lorenz, Armin W., McKie, Brendan G., Muotka, Timo, Osadčaja, Diana, Paavola, Riku, Palinauskas, Vaidas, Pařil, Petr, Pilotto, Francesca, Polášek, Marek, Rasmussen, Jes J., Schäfer, Ralf B., Schmidt-Kloiber, Astrid, Scotti, Alberto, Skuja, Agnija, Straka, Michal, Stubbington, Rachel, Timm, Henn, Tyufekchieva, Violeta, Tziortzis, Iakovos, Vannevel, Rudy, Várbíró, Gábor, Velle, Gaute, Verdonschot, Ralf C. M., Vray, Sarah, Haase, Peter, 0000-0003-0787-7342, 0000-0001-6944-3422, 0000-0002-4831-6958, 0000-0001-7948-106X, 0000-0003-1897-2636, 0000-0002-4695-5932, 0000-0002-2983-3335, 0000-0003-3864-7451, 0000-0003-1700-2574, 0000-0003-2281-2491, 0000-0003-2962-7387, 0000-0003-0209-4648, 0000-0003-2033-6399, 0000-0002-6358-8011, 0000-0003-0362-6802, 0000-0001-6740-3654, 0000-0002-4952-5807, 0000-0001-6675-4751, 0000-0001-6326-5653, 0000-0003-0488-1274, 0000-0002-6349-9561, 0000-0001-7979-6563, 0000-0003-0239-9468, 0000-0002-0185-9154, 0000-0002-3262-6396, 0009-0006-6199-9200, 0000-0002-4708-1413, 0000-0002-4714-0305, 0000-0002-7471-997X, 0000-0003-1848-3154, 0000-0002-5932-3125, 0000-0001-8839-5913, 0000-0002-5861-7551, 0000-0001-8475-5109, 0000-0002-9315-7773, 0000-0002-5603-271X, 0000-0002-0977-5975, 0000-0002-7385-8302, 0000-0002-9340-0438, Sinclair, James S., Welti, Ellen A. R., Altermatt, Florian, Álvarez-Cabria, Mario, Aroviita, Jukka, Baker, Nathan J., Barešová, Libuše, Barquín, José, Bonacina, Luca, Bonada, Núria, Cañedo-Argüelles, Miguel, Csabai, Zoltán, de Eyto, Elvira, Dohet, Alain, Dörflinger, Gerald, Eriksen, Tor E., Evtimova, Vesela, Feio, Maria J., Ferréol, Martial, Floury, Mathieu, Forio, Marie Anne Eurie, Fornaroli, Riccardo, Goethals, Peter L. M., Heino, Jani, Hering, Daniel, Huttunen, Kaisa-Leena, Jähnig, Sonja C., Johnson, Richard K., Kuglerová, Lenka, Kupilas, Benjamin, L'Hoste, Lionel, Larrañaga, Aitor, Leitner, Patrick, Lorenz, Armin W., McKie, Brendan G., Muotka, Timo, Osadčaja, Diana, Paavola, Riku, Palinauskas, Vaidas, Pařil, Petr, Pilotto, Francesca, Polášek, Marek, Rasmussen, Jes J., Schäfer, Ralf B., Schmidt-Kloiber, Astrid, Scotti, Alberto, Skuja, Agnija, Straka, Michal, Stubbington, Rachel, Timm, Henn, Tyufekchieva, Violeta, Tziortzis, Iakovos, Vannevel, Rudy, Várbíró, Gábor, Velle, Gaute, Verdonschot, Ralf C. M., Vray, Sarah, and Haase, Peter

Abstract

Humans impact terrestrial, marine and freshwater ecosystems, yet many broad-scale studies have found no systematic, negative biodiversity changes (for example, decreasing abundance or taxon richness). Here we show that mixed biodiversity responses may arise because community metrics show variable responses to anthropogenic impacts across broad spatial scales. We first quantified temporal trends in anthropogenic impacts for 1,365 riverine invertebrate communities from 23 European countries, based on similarity to least-impacted reference communities. Reference comparisons provide necessary, but often missing, baselines for evaluating whether communities are negatively impacted or have improved (less or more similar, respectively). We then determined whether changing impacts were consistently reflected in metrics of community abundance, taxon richness, evenness and composition. Invertebrate communities improved, that is, became more similar to reference conditions, from 1992 until the 2010s, after which improvements plateaued. Improvements were generally reflected by higher taxon richness, providing evidence that certain community metrics can broadly indicate anthropogenic impacts. However, richness responses were highly variable among sites, and we found no consistent responses in community abundance, evenness or composition. These findings suggest that, without sufficient data and careful metric selection, many common community metrics cannot reliably reflect anthropogenic impacts, helping explain the prevalence of mixed biodiversity trends.

Published
2024

3. An experimental study to assess resistance and resilience strategies of freshwater diatoms to cope with drying in Mediterranean temporary rivers

Author

0000-0002-0564-0184, 0000-0003-0095-1765, 0000-0003-3864-7451, 0000-0002-9493-3244, 0000-0002-2198-3486, 0000-0002-2983-3335, 0000-0002-6312-1948, Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Quevedo-Ortiz, Guillermo, Fernández-Calero, José María, Cañedo-Argüelles, Miguel, von Schiller, Daniel, Fortuño, Pau, Bonada, Núria, Gomà, Joan, 0000-0002-0564-0184, 0000-0003-0095-1765, 0000-0003-3864-7451, 0000-0002-9493-3244, 0000-0002-2198-3486, 0000-0002-2983-3335, 0000-0002-6312-1948, Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Quevedo-Ortiz, Guillermo, Fernández-Calero, José María, Cañedo-Argüelles, Miguel, von Schiller, Daniel, Fortuño, Pau, Bonada, Núria, and Gomà, Joan

Abstract

Temporary rivers are aquatic ecosystems that alternate periods of water flow with dry periods. Diatoms are a group of unicellular microalgae with a high colonizing ability, but little is known about their responses to drying. We carried out different resistance and resilience experiments to evaluate temporal and spatial dispersal capacity of diatoms during the dry period. The resistance was tested experimentally by rehydrating dried biofilms and sediments from temporary rivers, whereas resilience was tested by installing artificial mesocosms along a dry river section. Disconnected pools were also sampled to evaluate their propagule emission capacity. In turn, dogs from the area were sampled to test potential zoochory dispersal capacity. In the resistance experiment, we found living diatoms in all the rehydrated sediments but not in biofilms. Diatoms with mobility traits, high ecological plasticity, and resistance spores presented high, along with typical soil diatoms. In the resilience experiment, all mesocosms hosted living diatoms, which were low-profile, pioneering, and small species. Diatoms found in the mesocosms were also common in the disconnected pools, underscoring the potential role of the latter as a propagule emission zone. Dogs' paws also had living diatoms, which evidences that wild fauna could potentially act as passive diatom vectors.

Published
2024

4. Time series of freshwater macroinvertebrate abundances and site characteristics of European streams and rivers

Author

European Commision, 0000-0001-6944-3422, 0000-0002-4831-6958, 0000-0001-9493-2279, 0000-0002-2983-3335, 0000-0002-6352-3699, 0000-0003-3864-7451, 0000-0003-1390-6736, 0000-0003-2281-2491, 0000-0003-2962-7387, 0000-0002-8127-9335, 0000-0003-0209-4648, 0000-0001-5037-7509, 0000-0001-6675-4751, 0000-0001-7979-6563, 0000-0002-0185-9154, 0000-0003-0239-9468, 0000-0002-3262-6396, 0000-0003-0920-773X, 0000-0003-0036-363X, 0000-0003-3752-2040, 0000-0002-7471-997X, 0000-0003-3213-7135, 0000-0003-3510-1701, 0000-0001-5629-3007, 0000-0001-8475-5109, 0000-0002-9315-7773, 0000-0002-5603-271X, 0000-0002-4126-7452, 0000-0002-9340-0438, Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Welti, Ellen A. R., Bowler, Diana E., Sinclair, James S, Altermatt, Florian, Álvarez-Cabria, Mario, Amatulli, Giuseppe, Angeler, David G., Archambaud, Gaït, Arrate Jorrín, Iñaki, Aspin, Thomas, Azpiroz, Iker, Baker, Nathan Jay, Bañares, Iñaki, Barquín Ortiz, José, Bodin, Christian L., Bonacina, Luca, Bonada, Núria, Bottarin, Roberta, Cañedo-Argüelles, Miguel, Csabai, Zoltán, Datry, Thibault, de Eyto, Elvira, Dohet, Alain, Domisch, Sami, Dörflinger, Gerald, Drohan, Emma, Eikland, Knut A, England, Judy, Eriksen, Tor E, Evtimova, Vesela, Feio, Maria J., Ferréol, Martial, Floury, Mathieu, Forcellini, Maxence, Forio, Marie Anne Eurie, Fornaroli, Riccardo, Friberg, Nikolai, Fruget, Jean-François, Garcia Marquez, Jaime R., Georgieva, Galia, Goethals, Peter, Graça, Manuel A. S., House, Andy, Huttunen, Kaisa-Leena, Jensen, Thomas Correll, Johnson, Richard K., Jones, J Iwan, Kiesel, Jens, Larrañaga, Aitor, Leitner, Patrick, L'Hoste, Lionel, Lizée, Marie-Hélène, Lorenz, Armin W., Maire, Anthony, Manzanos Arnaiz, Jesús Alberto, Mckie, Brendan, Millán, Andrés, Muotka, Timo, Murphy, John F., Ozolins, Davis, Paavola, Riku, Paril, Petr, Peñas Silva, Francisco Jesús, Polasek, Marek, Rasmussen, Jes, Rubio, Manu, Sánchez Fernández, David, Sandin, Leonard, Schäfer, Ralf B., Schmidt-Kloiber, Astrid, Scotti, Alberto, Shen, Longzhu Q., Skuja, Agnija, Stoll, Stefan, Straka, Michal, Stubbington, Rachel, Timm, Henn, Tyufekchieva, Violeta G., Tziortzis, Iakovos, Uzunov, Yordan, van der Lee, Gea H., Vannevel, Rudy, Varadinova, Emilia, Várbíró, Gábor, Velle, Gaute, Verdonschot, Piet F. M., Verdonschot, Ralf C. M., Vidinova, Yanka, Wiberg-Larsen, Peter, Haase, Peter, European Commision, 0000-0001-6944-3422, 0000-0002-4831-6958, 0000-0001-9493-2279, 0000-0002-2983-3335, 0000-0002-6352-3699, 0000-0003-3864-7451, 0000-0003-1390-6736, 0000-0003-2281-2491, 0000-0003-2962-7387, 0000-0002-8127-9335, 0000-0003-0209-4648, 0000-0001-5037-7509, 0000-0001-6675-4751, 0000-0001-7979-6563, 0000-0002-0185-9154, 0000-0003-0239-9468, 0000-0002-3262-6396, 0000-0003-0920-773X, 0000-0003-0036-363X, 0000-0003-3752-2040, 0000-0002-7471-997X, 0000-0003-3213-7135, 0000-0003-3510-1701, 0000-0001-5629-3007, 0000-0001-8475-5109, 0000-0002-9315-7773, 0000-0002-5603-271X, 0000-0002-4126-7452, 0000-0002-9340-0438, Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Welti, Ellen A. R., Bowler, Diana E., Sinclair, James S, Altermatt, Florian, Álvarez-Cabria, Mario, Amatulli, Giuseppe, Angeler, David G., Archambaud, Gaït, Arrate Jorrín, Iñaki, Aspin, Thomas, Azpiroz, Iker, Baker, Nathan Jay, Bañares, Iñaki, Barquín Ortiz, José, Bodin, Christian L., Bonacina, Luca, Bonada, Núria, Bottarin, Roberta, Cañedo-Argüelles, Miguel, Csabai, Zoltán, Datry, Thibault, de Eyto, Elvira, Dohet, Alain, Domisch, Sami, Dörflinger, Gerald, Drohan, Emma, Eikland, Knut A, England, Judy, Eriksen, Tor E, Evtimova, Vesela, Feio, Maria J., Ferréol, Martial, Floury, Mathieu, Forcellini, Maxence, Forio, Marie Anne Eurie, Fornaroli, Riccardo, Friberg, Nikolai, Fruget, Jean-François, Garcia Marquez, Jaime R., Georgieva, Galia, Goethals, Peter, Graça, Manuel A. S., House, Andy, Huttunen, Kaisa-Leena, Jensen, Thomas Correll, Johnson, Richard K., Jones, J Iwan, Kiesel, Jens, Larrañaga, Aitor, Leitner, Patrick, L'Hoste, Lionel, Lizée, Marie-Hélène, Lorenz, Armin W., Maire, Anthony, Manzanos Arnaiz, Jesús Alberto, Mckie, Brendan, Millán, Andrés, Muotka, Timo, Murphy, John F., Ozolins, Davis, Paavola, Riku, Paril, Petr, Peñas Silva, Francisco Jesús, Polasek, Marek, Rasmussen, Jes, Rubio, Manu, Sánchez Fernández, David, Sandin, Leonard, Schäfer, Ralf B., Schmidt-Kloiber, Astrid, Scotti, Alberto, Shen, Longzhu Q., Skuja, Agnija, Stoll, Stefan, Straka, Michal, Stubbington, Rachel, Timm, Henn, Tyufekchieva, Violeta G., Tziortzis, Iakovos, Uzunov, Yordan, van der Lee, Gea H., Vannevel, Rudy, Varadinova, Emilia, Várbíró, Gábor, Velle, Gaute, Verdonschot, Piet F. M., Verdonschot, Ralf C. M., Vidinova, Yanka, Wiberg-Larsen, Peter, and Haase, Peter

Abstract

Freshwater macroinvertebrates are a diverse group and play key ecological roles, including accelerating nutrient cycling, filtering water, controlling primary producers, and providing food for predators. Their differences in tolerances and short generation times manifest in rapid community responses to change. Macroinvertebrate community composition is an indicator of water quality. In Europe, efforts to improve water quality following environmental legislation, primarily starting in the 1980s, may have driven a recovery of macroinvertebrate communities. Towards understanding temporal and spatial variation of these organisms, we compiled the TREAM dataset (Time seRies of European freshwAter Macroinvertebrates), consisting of macroinvertebrate community time series from 1,816 river and stream sites (mean length of 19.2 years and 14.9 sampling years) of 22 European countries sampled between 1968 and 2020. In total, the data include >93 million sampled individuals of 2,648 taxa from 959 genera and 212 families. These data can be used to test questions ranging from identifying drivers of the population dynamics of specific taxa to assessing the success of legislative and management restoration efforts.

Published
2024

5. Analysing the contribution of intermittent rivers to beta diversity can improve freshwater conservation in Mediterranean rivers

Author

0000-0001-9379-7626, 0000-0002-9997-5523, 0000-0001-5097-9382, 0000-0003-3398-9399, 0000-0003-0923-8237, 0000-0002-6785-4049, 0000-0002-5130-8107, 0000-0002-2198-3486, 0000-0003-2808-769X, 0000-0002-7050-2204, 0000-0002-1550-1305, 0000-0002-2983-3335, Soria, Maria, Cid, Núria, Ortega, Jean, Bini, Luis Mauricio, Acosta, Raúl, Gutiérrez-Cánovas, Cayetano, Rodríguez-Lozano, Pablo, Fortuño, Pau, Vinyoles, Dolors, Gallart, Francesc, Prat, Narcís, Bonada, Núria, 0000-0001-9379-7626, 0000-0002-9997-5523, 0000-0001-5097-9382, 0000-0003-3398-9399, 0000-0003-0923-8237, 0000-0002-6785-4049, 0000-0002-5130-8107, 0000-0002-2198-3486, 0000-0003-2808-769X, 0000-0002-7050-2204, 0000-0002-1550-1305, 0000-0002-2983-3335, Soria, Maria, Cid, Núria, Ortega, Jean, Bini, Luis Mauricio, Acosta, Raúl, Gutiérrez-Cánovas, Cayetano, Rodríguez-Lozano, Pablo, Fortuño, Pau, Vinyoles, Dolors, Gallart, Francesc, Prat, Narcís, and Bonada, Núria

Abstract

In Mediterranean climate regions, intermittent rivers (IRs) harbor highly dynamic communities with species and trait composition changing over time and space. Simultaneously considering multiple biodiversity facets and a spatiotemporal perspective is, therefore, key to developing effective conservation strategies for these ecosystems. We studied the spatiotemporal dynamics of aquatic macroinvertebrates in rivers of the western Mediterranean Basin by analysing (1) the taxonomic and functional richness and the local contribution to beta diversity (LCBD; measured considering taxonomic and functional facets) of perennial rivers and IRs over five sampling times, and (2) their relation with flow intermittence, local environmental uniqueness, and the number of anthropogenic impacts. Both analyses were also conducted for the subset of data including only IRs to compare values between their flowing and disconnected pool phases. According to our results, taxonomic and functional richness tended to be higher in perennial rivers than in IRs, while taxonomic and functional LCBD tended to be higher in IRs than in perennial rivers. When comparing IR sites over time, higher values of taxonomic and functional LCBD corresponded mostly to their disconnected pool phase. Flow intermittence, the number of anthropogenic impacts and the environmental uniqueness were significant predictors of taxonomic and functional richness, but only flow intermittence was an important predictor of taxonomic LCBD. For the IR-only data subset, disconnected pool permanence was the main predictor explaining spatiotemporal patterns. Our results highlight the importance of IRs to biodiversity conservation of Mediterranean climate rivers, especially during the disconnected pool phase, suggesting that these ecosystems cannot be ignored in conservation planning strategies.

Published
2024

6. Mediterranean springs: Keystone ecosystems and biodiversity refugia threatened by global change

Author

0000-0002-5661-3610, 0000-0003-1897-2636, 0000-0002-2983-3335, 0000-0003-0179-3842, 0000-0003-2890-4338, 0000-0003-3583-3929, 0000-0003-3954-0146, 0000-0002-7677-1333, 0000-0002-3036-3182, 0000-0001-9937-9644, 0000-0002-7215-0150, 0000-0001-6584-3541, 0000-0001-6767-231X, 0000-0002-7021-267X, 0000-0003-3115-7572, Fernández-Martínez, M., Barquín, J., Bonada, N., Cantonati, M., Churro, C., Corbera, J., Delgado, C., Dulsat-Masvidal, M., Garcia, G., Margalef, O., Pascual, R., Peñuelas, J., Preece, C., Sabater, F., Seiler, H., Zamora-Marín, J. M., Romero, E., 0000-0002-5661-3610, 0000-0003-1897-2636, 0000-0002-2983-3335, 0000-0003-0179-3842, 0000-0003-2890-4338, 0000-0003-3583-3929, 0000-0003-3954-0146, 0000-0002-7677-1333, 0000-0002-3036-3182, 0000-0001-9937-9644, 0000-0002-7215-0150, 0000-0001-6584-3541, 0000-0001-6767-231X, 0000-0002-7021-267X, 0000-0003-3115-7572, Fernández-Martínez, M., Barquín, J., Bonada, N., Cantonati, M., Churro, C., Corbera, J., Delgado, C., Dulsat-Masvidal, M., Garcia, G., Margalef, O., Pascual, R., Peñuelas, J., Preece, C., Sabater, F., Seiler, H., Zamora-Marín, J. M., and Romero, E.

Abstract

Mediterranean spring ecosystems are unique habitats at the interface between surface water and groundwater. These ecosystems support a remarkable array of biodiversity and provide important ecological functions and ecosystem services. Spring ecosystems are influenced by abiotic, biotic, and anthropogenic factors such as the lithology of their draining aquifers, their climate, and the land use of their recharge area, all of which affect the water chemistry of the aquifer and the spring discharges. One of the most relevant characteristics of spring ecosystems is the temporal stability of environmental conditions, including physicochemical features of the spring water, across seasons and years. This stability allows a wide range of species to benefit from these ecosystems (particularly during dry periods), fostering an unusually high number of endemic species. However, global change poses important threats to these freshwater ecosystems. Changes in temperature, evapotranspiration, and precipitation patterns can alter the water balance and chemistry of spring water. Eutrophication due to agricultural practices and emergent pollutants, such as pharmaceuticals, personal care products, and pesticides, is also a growing concern for the preservation of spring biodiversity. Here, we provide a synthesis of the main characteristics and functioning of Mediterranean spring ecosystems. We then describe their ecological value and biodiversity patterns and highlight the main risks these ecosystems face. Moreover, we identify existing knowledge gaps to guide future research in order to fully uncover the hidden biodiversity within these habitats and understand the main drivers that govern them. Finally, we provide a brief summary of recommended actions that should be taken to effectively manage and preserve Mediterranean spring ecosystems for future generations. Even though studies on Mediterranean spring ecosystems are still scarce, our review shows there are sufficient data to concl

Published
2023

7. Navigating through space and time: A methodological approach to quantify spatiotemporal connectivity using stream flow data as a case study

Author

European Commission, 0000-0001-8666-346X, 0000-0003-0095-1765, 0000-0002-9997-5523, 0000-0002-2983-3335, 0000-0003-3864-7451, Cunillera-Montcusí, David, Fernández-Calero, José María, Pölsterl, Sebastian, Argelich, Roger, Fortuño, Pau, Cid, Núria, Bonada, Núria, Cañedo-Argüelles, Miguel, European Commission, 0000-0001-8666-346X, 0000-0003-0095-1765, 0000-0002-9997-5523, 0000-0002-2983-3335, 0000-0003-3864-7451, Cunillera-Montcusí, David, Fernández-Calero, José María, Pölsterl, Sebastian, Argelich, Roger, Fortuño, Pau, Cid, Núria, Bonada, Núria, and Cañedo-Argüelles, Miguel

Abstract

The growing interest in combining spatial and temporal patterns in nature has been fostered by the current availability of high-frequency measurements. However, we still lack a methodological framework to process and interpret spatiotemporal datasets into meaningful values, adaptable to different time windows and/or responding to different spatial structures. Here, we developed and tested a framework to evaluate spatiotemporal connectivity using two new measures: the spatiotemporal connectivity (STcon) and the spatiotemporal connectivity matrix (STconmat). To obtain these measures, we consider a set of spatially connected sites within a temporally dynamic network. These measures are calculated from a spatiotemporal matrix where spatial and temporal connections across sites are captured. These connections respond to a determined network structure, assign different values to these connections and generate different scenarios from which we obtain the spatiotemporal connectivity. We developed these measures by using a dataset of stream flow state spanning a 513-day period obtained from data loggers installed in seven temporary streams. These measures allowed us to characterise connectivity among stream reaches and relate spatiotemporal patterns with macroinvertebrate community structure and composition. Spatiotemporal connectivity differed within and among streams, with STcon and STconmat capturing different hydrological patterns. Macroinvertebrate richness and diversity were higher in more spatiotemporally connected sites. Community dissimilarity was related to STconmat showing that more spatiotemporally connected sites had similar communities for active and passive dispersers. Interestingly, both groups were related to spatiotemporal connectivity patterns for some of the analysed scenarios, highlighting the relevance of spatiotemporal connectivity in dynamic systems. As we exemplified, the proposed framework can help to disentangle and quantify spatiotemporal dynamics

Published
2023

8. Invasion impacts and dynamics of a European-wide introduced species.

Author

Haubrock PJ, Ahmed DA, Cuthbert RN, Stubbington R, Domisch S, Marquez JRG, Beidas A, Amatulli G, Kiesel J, Shen LQ, Soto I, Angeler DG, Bonada N, Cañedo-Argüelles M, Csabai Z, Datry T, de Eyto E, Dohet A, Drohan E, England J, Feio MJ, Forio MAE, Goethals P, Graf W, Heino J, Hudgins EJ, Jähnig SC, Johnson RK, Larrañaga A, Leitner P, L'Hoste L, Lizee MH, Maire A, Rasmussen JJ, Schäfer RB, Schmidt-Kloiber A, Vannevel R, Várbíró G, Wiberg-Larsen P, and Haase P

Subjects
Animals, Europe, New Zealand, Snails, Ecosystem, Introduced Species
Abstract

Globalization has led to the introduction of thousands of alien species worldwide. With growing impacts by invasive species, understanding the invasion process remains critical for predicting adverse effects and informing efficient management. Theoretically, invasion dynamics have been assumed to follow an "invasion curve" (S-shaped curve of available area invaded over time), but this dynamic has lacked empirical testing using large-scale data and neglects to consider invader abundances. We propose an "impact curve" describing the impacts generated by invasive species over time based on cumulative abundances. To test this curve's large-scale applicability, we used the data-rich New Zealand mud snail Potamopyrgus antipodarum, one of the most damaging freshwater invaders that has invaded almost all of Europe. Using long-term (1979-2020) abundance and environmental data collected across 306 European sites, we observed that P. antipodarum abundance generally increased through time, with slower population growth at higher latitudes and with lower runoff depth. Fifty-nine percent of these populations followed the impact curve, characterized by first occurrence, exponential growth, then long-term saturation. This behaviour is consistent with boom-bust dynamics, as saturation occurs due to a rapid decline in abundance over time. Across sites, we estimated that impact peaked approximately two decades after first detection, but the rate of progression along the invasion process was influenced by local abiotic conditions. The S-shaped impact curve may be common among many invasive species that undergo complex invasion dynamics. This provides a potentially unifying approach to advance understanding of large-scale invasion dynamics and could inform timely management actions to mitigate impacts on ecosystems and economies., (© 2022 The Authors. Global Change Biology published by John Wiley & Sons Ltd.)

Published
2022
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9. DISPERSE, a trait database to assess the dispersal potential of European aquatic macroinvertebrates.

Author

Sarremejane R, Cid N, Stubbington R, Datry T, Alp M, Cañedo-Argüelles M, Cordero-Rivera A, Csabai Z, Gutiérrez-Cánovas C, Heino J, Forcellini M, Millán A, Paillex A, Pařil P, Polášek M, Tierno de Figueroa JM, Usseglio-Polatera P, Zamora-Muñoz C, and Bonada N

Subjects
Animals, Conservation of Natural Resources, Ecology, Environmental Monitoring, Europe, Animal Distribution, Aquatic Organisms, Invertebrates
Abstract

Dispersal is an essential process in population and community dynamics, but is difficult to measure in the field. In freshwater ecosystems, information on biological traits related to organisms' morphology, life history and behaviour provides useful dispersal proxies, but information remains scattered or unpublished for many taxa. We compiled information on multiple dispersal-related biological traits of European aquatic macroinvertebrates in a unique resource, the DISPERSE database. DISPERSE includes nine dispersal-related traits subdivided into 39 trait categories for 480 taxa, including Annelida, Mollusca, Platyhelminthes, and Arthropoda such as Crustacea and Insecta, generally at the genus level. Information within DISPERSE can be used to address fundamental research questions in metapopulation ecology, metacommunity ecology, macroecology and evolutionary ecology. Information on dispersal proxies can be applied to improve predictions of ecological responses to global change, and to inform improvements to biomonitoring, conservation and management strategies. The diverse sources used in DISPERSE complement existing trait databases by providing new information on dispersal traits, most of which would not otherwise be accessible to the scientific community.

Published
2020
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10. Simulating rewetting events in intermittent rivers and ephemeral streams: A global analysis of leached nutrients and organic matter.

Author

Shumilova O, Zak D, Datry T, von Schiller D, Corti R, Foulquier A, Obrador B, Tockner K, Allan DC, Altermatt F, Arce MI, Arnon S, Banas D, Banegas-Medina A, Beller E, Blanchette ML, Blanco-Libreros JF, Blessing J, Boëchat IG, Boersma K, Bogan MT, Bonada N, Bond NR, Brintrup K, Bruder A, Burrows R, Cancellario T, Carlson SM, Cauvy-Fraunié S, Cid N, Danger M, de Freitas Terra B, Girolamo AM, Del Campo R, Dyer F, Elosegi A, Faye E, Febria C, Figueroa R, Four B, Gessner MO, Gnohossou P, Cerezo RG, Gomez-Gener L, Graça MAS, Guareschi S, Gücker B, Hwan JL, Kubheka S, Langhans SD, Leigh C, Little CJ, Lorenz S, Marshall J, McIntosh A, Mendoza-Lera C, Meyer EI, Miliša M, Mlambo MC, Moleón M, Negus P, Niyogi D, Papatheodoulou A, Pardo I, Paril P, Pešić V, Rodriguez-Lozano P, Rolls RJ, Sanchez-Montoya MM, Savić A, Steward A, Stubbington R, Taleb A, Vorste RV, Waltham N, Zoppini A, and Zarfl C

Subjects
Biofilms growth & development, Biological Availability, Climate, Climate Change, Geologic Sediments chemistry, Nitrates analysis, Plant Leaves chemistry, Nutrients analysis, Organic Chemicals analysis, Rivers chemistry
Abstract

Climate change and human pressures are changing the global distribution and the extent of intermittent rivers and ephemeral streams (IRES), which comprise half of the global river network area. IRES are characterized by periods of flow cessation, during which channel substrates accumulate and undergo physico-chemical changes (preconditioning), and periods of flow resumption, when these substrates are rewetted and release pulses of dissolved nutrients and organic matter (OM). However, there are no estimates of the amounts and quality of leached substances, nor is there information on the underlying environmental constraints operating at the global scale. We experimentally simulated, under standard laboratory conditions, rewetting of leaves, riverbed sediments, and epilithic biofilms collected during the dry phase across 205 IRES from five major climate zones. We determined the amounts and qualitative characteristics of the leached nutrients and OM, and estimated their areal fluxes from riverbeds. In addition, we evaluated the variance in leachate characteristics in relation to selected environmental variables and substrate characteristics. We found that sediments, due to their large quantities within riverbeds, contribute most to the overall flux of dissolved substances during rewetting events (56%-98%), and that flux rates distinctly differ among climate zones. Dissolved organic carbon, phenolics, and nitrate contributed most to the areal fluxes. The largest amounts of leached substances were found in the continental climate zone, coinciding with the lowest potential bioavailability of the leached OM. The opposite pattern was found in the arid zone. Environmental variables expected to be modified under climate change (i.e. potential evapotranspiration, aridity, dry period duration, land use) were correlated with the amount of leached substances, with the strongest relationship found for sediments. These results show that the role of IRES should be accounted for in global biogeochemical cycles, especially because prevalence of IRES will increase due to increasing severity of drying events., (© 2019 The Authors. Global Change Biology Published by John Wiley & Sons Ltd.)

Published
2019
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11. Do all roads lead to Rome? Exploring community trajectories in response to anthropogenic salinization and dilution of rivers.

Author

Gutiérrez-Cánovas C, Sánchez-Fernández D, Cañedo-Argüelles M, Millán A, Velasco J, Acosta R, Fortuño P, Otero N, Soler A, and Bonada N

Subjects
Animals, Environmental Monitoring, Stress, Physiological, Biota, Invertebrates physiology, Rivers chemistry, Salinity
Abstract

Abiotic stress shapes how communities assemble and support ecological functions. However, it remains unclear whether artificially increasing or decreasing stress levels would lead to communities assembling predictably along a single axis of variation or along multiple context-dependent trajectories of change. In response to stress intensity alterations, we hypothesize that a single trajectory of change occurs when trait-based assembly prevails, while multiple trajectories of change arise when dispersal-related processes modify colonization and trait-filtering dynamics. Here, we tested these hypotheses using aquatic macroinvertebrates from rivers exposed to gradients of natural salinity and artificially diluted or salinized ion contents. Our results showed that trait-filtering was important in driving community assembly in natural and diluted rivers, while dispersal-related processes seemed to play a relevant role in response to salinization. Salinized rivers showed novel communities with different trait composition, while natural and diluted communities exhibited similar taxonomic and trait compositional patterns along the conductivity gradient. Our findings suggest that the artificial modification of chemical stressors can result in different biological communities, depending on the direction of the change (salinization or dilution), with trait-filtering, and organism dispersal and colonization dynamics having differential roles in community assembly. The approach presented here provides both empirical and conceptual insights that can help in anticipating the ecological effects of global change, especially for those stressors with both natural and anthropogenic origins.This article is part of the theme issue 'Salt in freshwaters: causes, ecological consequences and future prospects'., (© 2018 The Author(s).)

Published
2018
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