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

Author

Sinclair, J, Welti, E, Altermatt, F, Alvarez-Cabria, M, Aroviita, J, Baker, N, Baresova, L, Barquin, J, Bonacina, L, Bonada, N, Canedo-Arguelles, M, Csabai, Z, de Eyto, E, Dohet, A, Dorflinger, G, Eriksen, T, Evtimova, V, Feio, M, Ferreol, M, Floury, M, Forio, M, Fornaroli, R, Goethals, P, Heino, J, Hering, D, Huttunen, K, Jahnig, S, Johnson, R, Kuglerova, L, Kupilas, B, L'Hoste, L, Larranaga, A, Leitner, P, Lorenz, A, Mckie, B, Muotka, T, Osadcaja, D, Paavola, R, Palinauskas, V, Paril, P, Pilotto, F, Polasek, M, Rasmussen, J, Schafer, R, Schmidt-Kloiber, A, Scotti, A, Skuja, A, Straka, M, Stubbington, R, Timm, H, Tyufekchieva, V, Tziortzis, I, Vannevel, R, Varbiro, G, Velle, G, Verdonschot, R, Vray, S, Haase, P, Sinclair J. S., Welti E. A. R., Altermatt F., Alvarez-Cabria M., Aroviita J., Baker N. J., Baresova L., Barquin J., Bonacina L., Bonada N., Canedo-Arguelles M., Csabai Z., de Eyto E., Dohet A., Dorflinger G., Eriksen T. E., Evtimova V., Feio M. J., Ferreol M., Floury M., Forio M. A. E., Fornaroli R., Goethals P. L. M., Heino J., Hering D., Huttunen K. -L., Jahnig S. C., Johnson R. K., Kuglerova L., Kupilas B., L'Hoste L., Larranaga A., Leitner P., Lorenz A. W., McKie B. G., Muotka T., Osadcaja D., Paavola R., Palinauskas V., Paril P., Pilotto F., Polasek M., Rasmussen J. J., Schafer R. B., Schmidt-Kloiber A., Scotti A., Skuja A., Straka M., Stubbington R., Timm H., Tyufekchieva V., Tziortzis I., Vannevel R., Varbiro G., Velle G., Verdonschot R. C. M., Vray S., Haase P., Sinclair, J, Welti, E, Altermatt, F, Alvarez-Cabria, M, Aroviita, J, Baker, N, Baresova, L, Barquin, J, Bonacina, L, Bonada, N, Canedo-Arguelles, M, Csabai, Z, de Eyto, E, Dohet, A, Dorflinger, G, Eriksen, T, Evtimova, V, Feio, M, Ferreol, M, Floury, M, Forio, M, Fornaroli, R, Goethals, P, Heino, J, Hering, D, Huttunen, K, Jahnig, S, Johnson, R, Kuglerova, L, Kupilas, B, L'Hoste, L, Larranaga, A, Leitner, P, Lorenz, A, Mckie, B, Muotka, T, Osadcaja, D, Paavola, R, Palinauskas, V, Paril, P, Pilotto, F, Polasek, M, Rasmussen, J, Schafer, R, Schmidt-Kloiber, A, Scotti, A, Skuja, A, Straka, M, Stubbington, R, Timm, H, Tyufekchieva, V, Tziortzis, I, Vannevel, R, Varbiro, G, Velle, G, Verdonschot, R, Vray, S, Haase, P, Sinclair J. S., Welti E. A. R., Altermatt F., Alvarez-Cabria M., Aroviita J., Baker N. J., Baresova L., Barquin J., Bonacina L., Bonada N., Canedo-Arguelles M., Csabai Z., de Eyto E., Dohet A., Dorflinger G., Eriksen T. E., Evtimova V., Feio M. J., Ferreol M., Floury M., Forio M. A. E., Fornaroli R., Goethals P. L. M., Heino J., Hering D., Huttunen K. -L., Jahnig S. C., Johnson R. K., Kuglerova L., Kupilas B., L'Hoste L., Larranaga A., Leitner P., Lorenz A. W., McKie B. G., Muotka T., Osadcaja D., Paavola R., Palinauskas V., Paril P., Pilotto F., Polasek M., Rasmussen J. J., Schafer R. B., Schmidt-Kloiber A., Scotti A., Skuja A., Straka M., Stubbington R., Timm H., Tyufekchieva V., Tziortzis I., Vannevel R., Varbiro G., Velle G., Verdonschot R. C. M., Vray S., and Haase P.

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

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

Author

Welti, E, Bowler, D, Sinclair, J, Altermatt, F, Alvarez-Cabria, M, Amatulli, G, Angeler, D, Archambaud, G, Arrate Jorrin, I, Aspin, T, Azpiroz, I, Baker, N, Banares, I, Barquin Ortiz, J, Bodin, C, Bonacina, L, Bonada, N, Bottarin, R, Canedo-Arguelles, M, Csabai, Z, Datry, T, de Eyto, E, Dohet, A, Domisch, S, Dorflinger, G, Drohan, E, Eikland, K, England, J, Eriksen, T, Evtimova, V, Feio, M, Ferreol, M, Floury, M, Forcellini, M, Forio, M, Fornaroli, R, Friberg, N, Fruget, J, Garcia Marquez, J, Georgieva, G, Goethals, P, Graca, M, House, A, Huttunen, K, Jensen, T, Johnson, R, Jones, J, Kiesel, J, Larranaga, A, Leitner, P, L'Hoste, L, Lizee, M, Lorenz, A, Maire, A, Manzanos Arnaiz, J, Mckie, B, Millan, A, Muotka, T, Murphy, J, Ozolins, D, Paavola, R, Paril, P, Penas Silva, F, Polasek, M, Rasmussen, J, Rubio, M, Sanchez Fernandez, D, Sandin, L, Schafer, R, Schmidt-Kloiber, A, Scotti, A, Shen, L, Skuja, A, Stoll, S, Straka, M, Stubbington, R, Timm, H, Tyufekchieva, V, Tziortzis, I, Uzunov, Y, van der Lee, G, Vannevel, R, Varadinova, E, Varbiro, G, Velle, G, Verdonschot, P, Verdonschot, R, Vidinova, Y, Wiberg-Larsen, P, Haase, P, Welti E. A. R., Bowler D. E., Sinclair J. S., Altermatt F., Alvarez-Cabria M., Amatulli G., Angeler D. G., Archambaud G., Arrate Jorrin I., Aspin T., Azpiroz I., Baker N. J., Banares I., Barquin Ortiz J., Bodin C. L., Bonacina L., Bonada N., Bottarin R., Canedo-Arguelles M., Csabai Z., Datry T., de Eyto E., Dohet A., Domisch S., Dorflinger G., Drohan E., Eikland K. A., England J., Eriksen T. E., Evtimova V., Feio M. J., Ferreol M., Floury M., Forcellini M., Forio M. A. E., Fornaroli R., Friberg N., Fruget J. -F., Garcia Marquez J. R., Georgieva G., Goethals P., Graca M. A. S., House A., Huttunen K. -L., Jensen T. C., Johnson R. K., Jones J. I., Kiesel J., Larranaga A., Leitner P., L'Hoste L., Lizee M. -H., Lorenz A. W., Maire A., Manzanos Arnaiz J. A., Mckie B., Millan A., Muotka T., Murphy J. F., Ozolins D., Paavola R., Paril P., Penas Silva F. J., Polasek M., Rasmussen J., Rubio M., Sanchez Fernandez D., Sandin L., Schafer R. B., Schmidt-Kloiber A., Scotti A., Shen L. Q., Skuja A., Stoll S., Straka M., Stubbington R., Timm H., Tyufekchieva V. G., Tziortzis I., Uzunov Y., van der Lee G. H., Vannevel R., Varadinova E., Varbiro G., Velle G., Verdonschot P. F. M., Verdonschot R. C. M., Vidinova Y., Wiberg-Larsen P., Haase P., Welti, E, Bowler, D, Sinclair, J, Altermatt, F, Alvarez-Cabria, M, Amatulli, G, Angeler, D, Archambaud, G, Arrate Jorrin, I, Aspin, T, Azpiroz, I, Baker, N, Banares, I, Barquin Ortiz, J, Bodin, C, Bonacina, L, Bonada, N, Bottarin, R, Canedo-Arguelles, M, Csabai, Z, Datry, T, de Eyto, E, Dohet, A, Domisch, S, Dorflinger, G, Drohan, E, Eikland, K, England, J, Eriksen, T, Evtimova, V, Feio, M, Ferreol, M, Floury, M, Forcellini, M, Forio, M, Fornaroli, R, Friberg, N, Fruget, J, Garcia Marquez, J, Georgieva, G, Goethals, P, Graca, M, House, A, Huttunen, K, Jensen, T, Johnson, R, Jones, J, Kiesel, J, Larranaga, A, Leitner, P, L'Hoste, L, Lizee, M, Lorenz, A, Maire, A, Manzanos Arnaiz, J, Mckie, B, Millan, A, Muotka, T, Murphy, J, Ozolins, D, Paavola, R, Paril, P, Penas Silva, F, Polasek, M, Rasmussen, J, Rubio, M, Sanchez Fernandez, D, Sandin, L, Schafer, R, Schmidt-Kloiber, A, Scotti, A, Shen, L, Skuja, A, Stoll, S, Straka, M, Stubbington, R, Timm, H, Tyufekchieva, V, Tziortzis, I, Uzunov, Y, van der Lee, G, Vannevel, R, Varadinova, E, Varbiro, G, Velle, G, Verdonschot, P, Verdonschot, R, Vidinova, Y, Wiberg-Larsen, P, Haase, P, Welti E. A. R., Bowler D. E., Sinclair J. S., Altermatt F., Alvarez-Cabria M., Amatulli G., Angeler D. G., Archambaud G., Arrate Jorrin I., Aspin T., Azpiroz I., Baker N. J., Banares I., Barquin Ortiz J., Bodin C. L., Bonacina L., Bonada N., Bottarin R., Canedo-Arguelles M., Csabai Z., Datry T., de Eyto E., Dohet A., Domisch S., Dorflinger G., Drohan E., Eikland K. A., England J., Eriksen T. E., Evtimova V., Feio M. J., Ferreol M., Floury M., Forcellini M., Forio M. A. E., Fornaroli R., Friberg N., Fruget J. -F., Garcia Marquez J. R., Georgieva G., Goethals P., Graca M. A. S., House A., Huttunen K. -L., Jensen T. C., Johnson R. K., Jones J. I., Kiesel J., Larranaga A., Leitner P., L'Hoste L., Lizee M. -H., Lorenz A. W., Maire A., Manzanos Arnaiz J. A., Mckie B., Millan A., Muotka T., Murphy J. F., Ozolins D., Paavola R., Paril P., Penas Silva F. J., Polasek M., Rasmussen J., Rubio M., Sanchez Fernandez D., Sandin L., Schafer R. B., Schmidt-Kloiber A., Scotti A., Shen L. Q., Skuja A., Stoll S., Straka M., Stubbington R., Timm H., Tyufekchieva V. G., Tziortzis I., Uzunov Y., van der Lee G. H., Vannevel R., Varadinova E., Varbiro G., Velle G., Verdonschot P. F. M., Verdonschot R. C. M., Vidinova Y., Wiberg-Larsen P., and Haase P.

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

4. The recovery of European freshwater biodiversity has come to a halt

Author

Haase, P, Bowler, D, Baker, N, Bonada, N, Domisch, S, Garcia Marquez, J, Heino, J, Hering, D, Jahnig, S, Schmidt-Kloiber, A, Stubbington, R, Altermatt, F, Alvarez-Cabria, M, Amatulli, G, Angeler, D, Archambaud-Suard, G, Jorrin, I, Aspin, T, Azpiroz, I, Banares, I, Ortiz, J, Bodin, C, Bonacina, L, Bottarin, R, Canedo-Arguelles, M, Csabai, Z, Datry, T, de Eyto, E, Dohet, A, Dorflinger, G, Drohan, E, Eikland, K, England, J, Eriksen, T, Evtimova, V, Feio, M, Ferreol, M, Floury, M, Forcellini, M, Forio, M, Fornaroli, R, Friberg, N, Fruget, J, Georgieva, G, Goethals, P, Graca, M, Graf, W, House, A, Huttunen, K, Jensen, T, Johnson, R, Jones, J, Kiesel, J, Kuglerova, L, Larranaga, A, Leitner, P, L'Hoste, L, Lizee, M, Lorenz, A, Maire, A, Arnaiz, J, Mckie, B, Millan, A, Monteith, D, Muotka, T, Murphy, J, Ozolins, D, Paavola, R, Paril, P, Penas, F, Pilotto, F, Polasek, M, Rasmussen, J, Rubio, M, Sanchez-Fernandez, D, Sandin, L, Schafer, R, Scotti, A, Shen, L, Skuja, A, Stoll, S, Straka, M, Timm, H, Tyufekchieva, V, Tziortzis, I, Uzunov, Y, van der Lee, G, Vannevel, R, Varadinova, E, Varbiro, G, Velle, G, Verdonschot, P, Verdonschot, R, Vidinova, Y, Wiberg-Larsen, P, Welti, E, Haase P., Bowler D. E., Baker N. J., Bonada N., Domisch S., Garcia Marquez J. R., Heino J., Hering D., Jahnig S. C., Schmidt-Kloiber A., Stubbington R., Altermatt F., Alvarez-Cabria M., Amatulli G., Angeler D. G., Archambaud-Suard G., Jorrin I. A., Aspin T., Azpiroz I., Banares I., Ortiz J. B., Bodin C. L., Bonacina L., Bottarin R., Canedo-Arguelles M., Csabai Z., Datry T., de Eyto E., Dohet A., Dorflinger G., Drohan E., Eikland K. A., England J., Eriksen T. E., Evtimova V., Feio M. J., Ferreol M., Floury M., Forcellini M., Forio M. A. E., Fornaroli R., Friberg N., Fruget J. -F., Georgieva G., Goethals P., Graca M. A. S., Graf W., House A., Huttunen K. -L., Jensen T. C., Johnson R. K., Jones J. I., Kiesel J., Kuglerova L., Larranaga A., Leitner P., L'Hoste L., Lizee M. -H., Lorenz A. W., Maire A., Arnaiz J. A. M., McKie B. G., Millan A., Monteith D., Muotka T., Murphy J. F., Ozolins D., Paavola R., Paril P., Penas F. J., Pilotto F., Polasek M., Rasmussen J. J., Rubio M., Sanchez-Fernandez D., Sandin L., Schafer R. B., Scotti A., Shen L. Q., Skuja A., Stoll S., Straka M., Timm H., Tyufekchieva V. G., Tziortzis I., Uzunov Y., van der Lee G. H., Vannevel R., Varadinova E., Varbiro G., Velle G., Verdonschot P. F. M., Verdonschot R. C. M., Vidinova Y., Wiberg-Larsen P., Welti E. A. R., Haase, P, Bowler, D, Baker, N, Bonada, N, Domisch, S, Garcia Marquez, J, Heino, J, Hering, D, Jahnig, S, Schmidt-Kloiber, A, Stubbington, R, Altermatt, F, Alvarez-Cabria, M, Amatulli, G, Angeler, D, Archambaud-Suard, G, Jorrin, I, Aspin, T, Azpiroz, I, Banares, I, Ortiz, J, Bodin, C, Bonacina, L, Bottarin, R, Canedo-Arguelles, M, Csabai, Z, Datry, T, de Eyto, E, Dohet, A, Dorflinger, G, Drohan, E, Eikland, K, England, J, Eriksen, T, Evtimova, V, Feio, M, Ferreol, M, Floury, M, Forcellini, M, Forio, M, Fornaroli, R, Friberg, N, Fruget, J, Georgieva, G, Goethals, P, Graca, M, Graf, W, House, A, Huttunen, K, Jensen, T, Johnson, R, Jones, J, Kiesel, J, Kuglerova, L, Larranaga, A, Leitner, P, L'Hoste, L, Lizee, M, Lorenz, A, Maire, A, Arnaiz, J, Mckie, B, Millan, A, Monteith, D, Muotka, T, Murphy, J, Ozolins, D, Paavola, R, Paril, P, Penas, F, Pilotto, F, Polasek, M, Rasmussen, J, Rubio, M, Sanchez-Fernandez, D, Sandin, L, Schafer, R, Scotti, A, Shen, L, Skuja, A, Stoll, S, Straka, M, Timm, H, Tyufekchieva, V, Tziortzis, I, Uzunov, Y, van der Lee, G, Vannevel, R, Varadinova, E, Varbiro, G, Velle, G, Verdonschot, P, Verdonschot, R, Vidinova, Y, Wiberg-Larsen, P, Welti, E, Haase P., Bowler D. E., Baker N. J., Bonada N., Domisch S., Garcia Marquez J. R., Heino J., Hering D., Jahnig S. C., Schmidt-Kloiber A., Stubbington R., Altermatt F., Alvarez-Cabria M., Amatulli G., Angeler D. G., Archambaud-Suard G., Jorrin I. A., Aspin T., Azpiroz I., Banares I., Ortiz J. B., Bodin C. L., Bonacina L., Bottarin R., Canedo-Arguelles M., Csabai Z., Datry T., de Eyto E., Dohet A., Dorflinger G., Drohan E., Eikland K. A., England J., Eriksen T. E., Evtimova V., Feio M. J., Ferreol M., Floury M., Forcellini M., Forio M. A. E., Fornaroli R., Friberg N., Fruget J. -F., Georgieva G., Goethals P., Graca M. A. S., Graf W., House A., Huttunen K. -L., Jensen T. C., Johnson R. K., Jones J. I., Kiesel J., Kuglerova L., Larranaga A., Leitner P., L'Hoste L., Lizee M. -H., Lorenz A. W., Maire A., Arnaiz J. A. M., McKie B. G., Millan A., Monteith D., Muotka T., Murphy J. F., Ozolins D., Paavola R., Paril P., Penas F. J., Pilotto F., Polasek M., Rasmussen J. J., Rubio M., Sanchez-Fernandez D., Sandin L., Schafer R. B., Scotti A., Shen L. Q., Skuja A., Stoll S., Straka M., Timm H., Tyufekchieva V. G., Tziortzis I., Uzunov Y., van der Lee G. H., Vannevel R., Varadinova E., Varbiro G., Velle G., Verdonschot P. F. M., Verdonschot R. C. M., Vidinova Y., Wiberg-Larsen P., and Welti E. A. R.

Abstract

Owing to a long history of anthropogenic pressures, freshwater ecosystems are among the most vulnerable to biodiversity loss 1. Mitigation measures, including wastewater treatment and hydromorphological restoration, have aimed to improve environmental quality and foster the recovery of freshwater biodiversity 2. Here, using 1,816 time series of freshwater invertebrate communities collected across 22 European countries between 1968 and 2020, we quantified temporal trends in taxonomic and functional diversity and their responses to environmental pressures and gradients. We observed overall increases in taxon richness (0.73% per year), functional richness (2.4% per year) and abundance (1.17% per year). However, these increases primarily occurred before the 2010s, and have since plateaued. Freshwater communities downstream of dams, urban areas and cropland were less likely to experience recovery. Communities at sites with faster rates of warming had fewer gains in taxon richness, functional richness and abundance. Although biodiversity gains in the 1990s and 2000s probably reflect the effectiveness of water-quality improvements and restoration projects, the decelerating trajectory in the 2010s suggests that the current measures offer diminishing returns. Given new and persistent pressures on freshwater ecosystems, including emerging pollutants, climate change and the spread of invasive species, we call for additional mitigation to revive the recovery of freshwater biodiversity.

Published
2023

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

Author

Fernández‐Martínez, M., primary, Barquín, J., additional, Bonada, N., additional, Cantonati, M., additional, Churro, C., additional, Corbera, J., additional, Delgado, C., additional, Dulsat‐Masvidal, M., additional, Garcia, G., additional, Margalef, O., additional, Pascual, R., additional, Peñuelas, J., additional, Preece, C., additional, Sabater, F., additional, Seiler, H., additional, Zamora‐Marín, J. M., additional, and Romero, E., additional

Published
2023
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6. Mediterranean springs: Keystone ecosystems and biodiversity refugia threatened by global change.

Author

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.

Subjects
SPRING, ECOSYSTEMS, WATER springs, BIODIVERSITY, WATER chemistry, AGRICULTURE, HYGIENE products
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 conclude that their future viability as functional ecosystems is under severe threat. [ABSTRACT FROM AUTHOR]

Published
2024
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7. A global analysis of terrestrial plant litter dynamics in non-perennial waterways

Author

Datry, T., Foulquier, A., Corti, R., von Schiller, D., Tockner, K., Mendoza-Lera, C., Clément, J. C., Gessner, M. O., Moleón, M., Stubbington, R., Gücker, B., Albariño, R., Allen, D. C., Altermatt, F., Arce, M. I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M. L., Blanco-Libreros, J. F., Blessing, J. J., Boëchat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup Barría, K. C., Bruder, A., Burrows, R. M., Cancellario, T., Canhoto, C., Carlson, S. M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas Terra, Bianca, De Girolamo, A. M, de La Barra, Evans, del Campo, R., Diaz-Villanueva, V. D., Dyer, F., Elosegi, A., Faye, E., Febria, C., Four, B., Gafny, S., Ghate, S. D., Gómez, R., Gómez-Gener, L., Graça, M. A. S., Guareschi, S., Hoppeler, F., Hwan, J. L., Jones, J. I., Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J. C., Martín, E., McIntosh, A. R., Meyer, E. I., Miliša, M., Mlambo, M. C., Morais, M., Moya, N., Negus, P. M., Niyogi, D. K., Papatheodoulou, A., Pardo, I., Pařil, P., Pauls, S. U., Pešić, V., Polášek, M., Robinson, C. T., Rodríguez-Lozano, P., Rolls, R. J., Sánchez-Montoya, M. M., Savić, A., Shumilova, O., Sridhar, K. R., Steward, A. L., Storey, R., Taleb, A., Uzan, A., Vander Vorste, Ross, Waltham, N. J., Woelfle-Erskine, C., Zak, D., Zarfl, C., and Zoppini, A.

Published
2018
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8. The global EPTO database:worldwide occurrences of aquatic insects

Author

Grigoropoulou, A. (Afroditi), Ab Hamid, S. (Suhaila), Acosta, R. (Raúl), Akindele, E. O. (Emmanuel Olusegun), Al-Shami, S. A. (Salman A.), Altermatt, F. (Florian), Amatulli, G. (Giuseppe), Angeler, D. G. (David G.), Arimoro, F. O. (Francis O.), Aroviita, J. (Jukka), Astorga-Roine, A. (Anna), Bastos, R. C. (Rafael Costa), Bonada, N. (Núria), Boukas, N. (Nikos), Brand, C. (Cecilia), Bremerich, V. (Vanessa), Bush, A. (Alex), Cai, Q. (Qinghua), Callisto, M. (Marcos), Chen, K. (Kai), Cruz, P. V. (Paulo Vilela), Dangles, O. (Olivier), Death, R. (Russell), Deng, X. (Xiling), Domínguez, E. (Eduardo), Dudgeon, D. (David), Eriksen, T. E. (Tor Erik), Faria, A. P. (Ana Paula J.), Feio, M. J. (Maria João), Fernández-Aláez, C. (Camino), Floury, M. (Mathieu), García-Criado, F. (Francisco), García-Girón, J. (Jorge), Graf, W. (Wolfram), Grönroos, M. (Mira), Haase, P. (Peter), Hamada, N. (Neusa), He, F. (Fengzhi), Heino, J. (Jani), Holzenthal, R. (Ralph), Huttunen, K.-L. (Kaisa-Leena), Jacobsen, D. (Dean), Jähnig, S. C. (Sonja C.), Jetz, W. (Walter), Johnson, R. K. (Richard K.), Juen, L. (Leandro), Kalkman, V. (Vincent), Kati, V. (Vassiliki), Keke, U. N. (Unique N.), Koroiva, R. (Ricardo), Kuemmerlen, M. (Mathias), Langhans, S. D. (Simone Daniela), Ligeiro, R. (Raphael), Van Looy, K. (Kris), Maasri, A. (Alain), Marchant, R. (Richard), Garcia Marquez, J. R. (Jaime Ricardo), Martins, R. T. (Renato T.), Melo, A. S. (Adriano S.), Metzeling, L. (Leon), Miserendino, M. L. (Maria Laura), Moe, S. J. (S. Jannicke), Molineri, C. (Carlos), Muotka, T. (Timo), Mustonen, K.-R. (Kaisa-Riikka), Mykrä, H. (Heikki), Cavalcante Do Nascimento, J. M. (Jeane Marcelle), Valente-Neto, F. (Francisco), Neu, P. J. (Peter J.), Nieto, C. (Carolina), Pauls, S. U. (Steffen U.), Paulson, D. R. (Dennis R.), Rios-Touma, B. (Blanca), Rodrigues, M. E. (Marciel Elio), de Oliveira Roque, F. (Fabio), Salazar Salina, J. C. (Juan Carlos), Schmera, D. (Dénes), Schmidt-Kloiber, A. (Astrid), Shah, D. N. (Deep Narayan), Simaika, J. P. (John P.), Siqueira, T. (Tadeu), Tachamo-Shah, R. D. (Ram Devi), Theischinger, G. (Günther), Thompson, R. (Ross), Tonkin, J. D. (Jonathan D.), Torres-Cambas, Y. (Yusdiel), Townsend, C. (Colin), Turak, E. (Eren), Twardochleb, L. (Laura), Wang, B. (Beixin), Yanygina, L. (Liubov), Zamora-Muñoz, C. (Carmen), Domisch, S. (Sami), Grigoropoulou, A. (Afroditi), Ab Hamid, S. (Suhaila), Acosta, R. (Raúl), Akindele, E. O. (Emmanuel Olusegun), Al-Shami, S. A. (Salman A.), Altermatt, F. (Florian), Amatulli, G. (Giuseppe), Angeler, D. G. (David G.), Arimoro, F. O. (Francis O.), Aroviita, J. (Jukka), Astorga-Roine, A. (Anna), Bastos, R. C. (Rafael Costa), Bonada, N. (Núria), Boukas, N. (Nikos), Brand, C. (Cecilia), Bremerich, V. (Vanessa), Bush, A. (Alex), Cai, Q. (Qinghua), Callisto, M. (Marcos), Chen, K. (Kai), Cruz, P. V. (Paulo Vilela), Dangles, O. (Olivier), Death, R. (Russell), Deng, X. (Xiling), Domínguez, E. (Eduardo), Dudgeon, D. (David), Eriksen, T. E. (Tor Erik), Faria, A. P. (Ana Paula J.), Feio, M. J. (Maria João), Fernández-Aláez, C. (Camino), Floury, M. (Mathieu), García-Criado, F. (Francisco), García-Girón, J. (Jorge), Graf, W. (Wolfram), Grönroos, M. (Mira), Haase, P. (Peter), Hamada, N. (Neusa), He, F. (Fengzhi), Heino, J. (Jani), Holzenthal, R. (Ralph), Huttunen, K.-L. (Kaisa-Leena), Jacobsen, D. (Dean), Jähnig, S. C. (Sonja C.), Jetz, W. (Walter), Johnson, R. K. (Richard K.), Juen, L. (Leandro), Kalkman, V. (Vincent), Kati, V. (Vassiliki), Keke, U. N. (Unique N.), Koroiva, R. (Ricardo), Kuemmerlen, M. (Mathias), Langhans, S. D. (Simone Daniela), Ligeiro, R. (Raphael), Van Looy, K. (Kris), Maasri, A. (Alain), Marchant, R. (Richard), Garcia Marquez, J. R. (Jaime Ricardo), Martins, R. T. (Renato T.), Melo, A. S. (Adriano S.), Metzeling, L. (Leon), Miserendino, M. L. (Maria Laura), Moe, S. J. (S. Jannicke), Molineri, C. (Carlos), Muotka, T. (Timo), Mustonen, K.-R. (Kaisa-Riikka), Mykrä, H. (Heikki), Cavalcante Do Nascimento, J. M. (Jeane Marcelle), Valente-Neto, F. (Francisco), Neu, P. J. (Peter J.), Nieto, C. (Carolina), Pauls, S. U. (Steffen U.), Paulson, D. R. (Dennis R.), Rios-Touma, B. (Blanca), Rodrigues, M. E. (Marciel Elio), de Oliveira Roque, F. (Fabio), Salazar Salina, J. C. (Juan Carlos), Schmera, D. (Dénes), Schmidt-Kloiber, A. (Astrid), Shah, D. N. (Deep Narayan), Simaika, J. P. (John P.), Siqueira, T. (Tadeu), Tachamo-Shah, R. D. (Ram Devi), Theischinger, G. (Günther), Thompson, R. (Ross), Tonkin, J. D. (Jonathan D.), Torres-Cambas, Y. (Yusdiel), Townsend, C. (Colin), Turak, E. (Eren), Twardochleb, L. (Laura), Wang, B. (Beixin), Yanygina, L. (Liubov), Zamora-Muñoz, C. (Carmen), and Domisch, S. (Sami)

Abstract

Motivation: Aquatic insects comprise 64% of freshwater animal diversity and are widely used as bioindicators to assess water quality impairment and freshwater ecosystem health, as well as to test ecological hypotheses. Despite their importance, a comprehensive, global database of aquatic insect occurrences for mapping freshwater biodiversity in macroecological studies and applied freshwater research is missing. We aim to fill this gap and present the Global EPTO Database, which includes worldwide geo-referenced aquatic insect occurrence records for four major taxa groups: Ephemeroptera, Plecoptera, Trichoptera and Odonata (EPTO). Main type of variables contained: A total of 8,368,467 occurrence records globally, of which 8,319,689 (99%) are publicly available. The records are attributed to the corresponding drainage basin and sub-catchment based on the Hydrography90m dataset and are accompanied by the elevation value, the freshwater ecoregion and the protection status of their location. Spatial location and grain: The database covers the global extent, with 86% of the observation records having coordinates with at least four decimal digits (11.1 m precision at the equator) in the World Geodetic System 1984 (WGS84) coordinate reference system. Time period and grain: Sampling years span from 1951 to 2021. Ninety-nine percent of the records have information on the year of the observation, 95% on the year and month, while 94% have a complete date. In the case of seven sub-datasets, exact dates can be retrieved upon communication with the data contributors. Major taxa and level of measurement: Ephemeroptera, Plecoptera, Trichoptera and Odonata, standardized at the genus taxonomic level. We provide species names for 7,727,980 (93%) records without further taxonomic verification. Software format: The entire tab-separated value (.csv) database can be downloaded and visualized at https://glowabio.org/project/epto_database/. Fifty individual datasets are also availab

Published
2023

9. 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

10. The recovery of European freshwater biodiversity has come to a halt

Author

Haase, P., Bowler, Diana, Baker, N.J., Bonada, N., Domisch, S., Garcia Marquez, J.R., Heino, J., Hering, D., Jähnig, S.C., Schmidt-Kloiber, A., Stubbington, R., Altermatt, F., Álvarez-Cabria, M., Amatulli, G., Angeler, D.G., Archambaud-Suard, G., Arrate Jorrín, I., Aspin, T., Azpiroz, I., Bañares, I., Barquín Ortiz, J., Bodin, C.L., Bonacina, L., Bottarin, R., Cañedo-Argüelles, M., Csabai, Z., Datry, T., de Eyto, E., Dohet, A., Dörflinger, G., Drohan, E., Eikland, K.A., England, J., Eriksen, T.E., Evtimova, V., Feio, M.J., Ferréol, M., Floury, M., Forcellini, M., Eurie Forio, M.A., Fornaroli, R., Friberg, N., Fruget, J.-F., Georgieva, G., Goethals, P., Graça, M.A.S., Graf, W., House, A., Huttunen, K.-L., Jensen, T.C., Johnson, R.K., Jones, J.I., Kiesel, J., Kuglerová, L., Larrañaga, A., Leitner, P., L’Hoste, L., Lizée, M.-H., Lorenz, A.W., Maire, A., Manzanos Arnaiz, J.A., McKie, B.G., Millán, A., Monteith, D., Muotka, T., Murphy, J.F., Ozolins, D., Paavola, R., Paril, P., Peñas, F.J., Pilotto, F., Polášek, M., Rasmussen, J.J., Rubio, M., Sánchez-Fernández, D., Sandin, L., Schäfer, R.B., Scotti, A., Shen, L.Q., Skuja, A., Stoll, S., Straka, M., Timm, H., Tyufekchieva, V.G., Tziortzis, I., Uzunov, Y., van der Lee, G.H., Vannevel, R., Varadinova, E., Várbíró, G., Velle, G., Verdonschot, P.F.M., Verdonschot, R.C.M., Vidinova, Y., Wiberg-Larsen, P., Welti, E.A.R., Haase, P., Bowler, Diana, Baker, N.J., Bonada, N., Domisch, S., Garcia Marquez, J.R., Heino, J., Hering, D., Jähnig, S.C., Schmidt-Kloiber, A., Stubbington, R., Altermatt, F., Álvarez-Cabria, M., Amatulli, G., Angeler, D.G., Archambaud-Suard, G., Arrate Jorrín, I., Aspin, T., Azpiroz, I., Bañares, I., Barquín Ortiz, J., Bodin, C.L., Bonacina, L., Bottarin, R., Cañedo-Argüelles, M., Csabai, Z., Datry, T., de Eyto, E., Dohet, A., Dörflinger, G., Drohan, E., Eikland, K.A., England, J., Eriksen, T.E., Evtimova, V., Feio, M.J., Ferréol, M., Floury, M., Forcellini, M., Eurie Forio, M.A., Fornaroli, R., Friberg, N., Fruget, J.-F., Georgieva, G., Goethals, P., Graça, M.A.S., Graf, W., House, A., Huttunen, K.-L., Jensen, T.C., Johnson, R.K., Jones, J.I., Kiesel, J., Kuglerová, L., Larrañaga, A., Leitner, P., L’Hoste, L., Lizée, M.-H., Lorenz, A.W., Maire, A., Manzanos Arnaiz, J.A., McKie, B.G., Millán, A., Monteith, D., Muotka, T., Murphy, J.F., Ozolins, D., Paavola, R., Paril, P., Peñas, F.J., Pilotto, F., Polášek, M., Rasmussen, J.J., Rubio, M., Sánchez-Fernández, D., Sandin, L., Schäfer, R.B., Scotti, A., Shen, L.Q., Skuja, A., Stoll, S., Straka, M., Timm, H., Tyufekchieva, V.G., Tziortzis, I., Uzunov, Y., van der Lee, G.H., Vannevel, R., Varadinova, E., Várbíró, G., Velle, G., Verdonschot, P.F.M., Verdonschot, R.C.M., Vidinova, Y., Wiberg-Larsen, P., and Welti, E.A.R.

Abstract

Owing to a long history of anthropogenic pressures, freshwater ecosystems are among the most vulnerable to biodiversity loss1. Mitigation measures, including wastewater treatment and hydromorphological restoration, have aimed to improve environmental quality and foster the recovery of freshwater biodiversity2. Here, using 1,816 time series of freshwater invertebrate communities collected across 22 European countries between 1968 and 2020, we quantified temporal trends in taxonomic and functional diversity and their responses to environmental pressures and gradients. We observed overall increases in taxon richness (0.73% per year), functional richness (2.4% per year) and abundance (1.17% per year). However, these increases primarily occurred before the 2010s, and have since plateaued. Freshwater communities downstream of dams, urban areas and cropland were less likely to experience recovery. Communities at sites with faster rates of warming had fewer gains in taxon richness, functional richness and abundance. Although biodiversity gains in the 1990s and 2000s probably reflect the effectiveness of water-quality improvements and restoration projects, the decelerating trajectory in the 2010s suggests that the current measures offer diminishing returns. Given new and persistent pressures on freshwater ecosystems, including emerging pollutants, climate change and the spread of invasive species, we call for additional mitigation to revive the recovery of freshwater biodiversity.

Published
2023

11. The global EPTO database: Worldwide occurrences of aquatic insects

Author

Grigoropoulou, A. Hamid, S. A. Acosta, R. Akindele, E. O. Al-Shami, S. A. Altermatt, F. Amatulli, G. Angeler, D. G. Arimoro, F. O. Aroviita, J. Astorga-Roine, A. Bastos, R. C. Bonada, N. Boukas, N. Brand, C. Bremerich, V. Bush, A. Cai, Q. Callisto, M. Chen, K. Cruz, P. V. Dangles, O. Death, R. Deng, X. Domínguez, E. Dudgeon, D. Eriksen, T. E. Faria, A. P. J. Feio, M. J. Fernández-Aláez, C. Floury, M. García-Criado, F. García-Girón, J. Graf, W. Grönroos, M. Haase, P. Hamada, N. He, F. Heino, J. Holzenthal, R. Huttunen, K. L. Jacobsen, D. Jähnig, S. C. Jetz, W. Johnson, R. K. Juen, L. Kalkman, V. Kati, V. Keke, U. N. Koroiva, R. Kuemmerlen, M. Langhans, S. D. Ligeiro, R. Van Looy, K. Maasri, A. Marchant, R. Garcia Marquez, J. R. Martins, R. T. Melo, A. S. Metzeling, L. Miserendino, M. L. Moe, S. J. Molineri, C. Muotka, T. Mustonen, K. R. Mykrä, H. Cavalcante do Nascimento, J. M. Valente-Neto, F. Neu, P. J. Nieto, C. Pauls, S. U. Paulson, D. R. Rios-Touma, B. Rodrigues, M. E. de Oliveira Roque, F. Salazar Salina, J. Schmera, D. Schmidt-Kloiber, A. Shah, D. Simaika, J. P. Siqueira, T. Tachamo-Shah, R. D. Theischinger, G. Thompson, R. Tonkin, J. D. Torres-Cambas, Y. Townsend, C. Turak, E. Twardochleb, L. Wang, B. Yanygina, L. Zamora-Muñoz, C. Domisch, S. and Grigoropoulou, A. Hamid, S. A. Acosta, R. Akindele, E. O. Al-Shami, S. A. Altermatt, F. Amatulli, G. Angeler, D. G. Arimoro, F. O. Aroviita, J. Astorga-Roine, A. Bastos, R. C. Bonada, N. Boukas, N. Brand, C. Bremerich, V. Bush, A. Cai, Q. Callisto, M. Chen, K. Cruz, P. V. Dangles, O. Death, R. Deng, X. Domínguez, E. Dudgeon, D. Eriksen, T. E. Faria, A. P. J. Feio, M. J. Fernández-Aláez, C. Floury, M. García-Criado, F. García-Girón, J. Graf, W. Grönroos, M. Haase, P. Hamada, N. He, F. Heino, J. Holzenthal, R. Huttunen, K. L. Jacobsen, D. Jähnig, S. C. Jetz, W. Johnson, R. K. Juen, L. Kalkman, V. Kati, V. Keke, U. N. Koroiva, R. Kuemmerlen, M. Langhans, S. D. Ligeiro, R. Van Looy, K. Maasri, A. Marchant, R. Garcia Marquez, J. R. Martins, R. T. Melo, A. S. Metzeling, L. Miserendino, M. L. Moe, S. J. Molineri, C. Muotka, T. Mustonen, K. R. Mykrä, H. Cavalcante do Nascimento, J. M. Valente-Neto, F. Neu, P. J. Nieto, C. Pauls, S. U. Paulson, D. R. Rios-Touma, B. Rodrigues, M. E. de Oliveira Roque, F. Salazar Salina, J. Schmera, D. Schmidt-Kloiber, A. Shah, D. Simaika, J. P. Siqueira, T. Tachamo-Shah, R. D. Theischinger, G. Thompson, R. Tonkin, J. D. Torres-Cambas, Y. Townsend, C. Turak, E. Twardochleb, L. Wang, B. Yanygina, L. Zamora-Muñoz, C. Domisch, S.

Abstract

Motivation Aquatic insects comprise 64% of freshwater animal diversity and are widely used as bioindicators to assess water quality impairment and freshwater ecosystem health, as well as to test ecological hypotheses. Despite their importance, a comprehensive, global database of aquatic insect occurrences for mapping freshwater biodiversity in macroecological studies and applied freshwater research is missing. We aim to fill this gap and present the Global EPTO Database, which includes worldwide geo-referenced aquatic insect occurrence records for four major taxa groups: Ephemeroptera, Plecoptera, Trichoptera and Odonata (EPTO). Main type of variables contained A total of 8,368,467 occurrence records globally, of which 8,319,689 (99%) are publicly available. The records are attributed to the corresponding drainage basin and sub-catchment based on the Hydrography90m dataset and are accompanied by the elevation value, the freshwater ecoregion and the protection status of their location. Spatial location and grain The database covers the global extent, with 86% of the observation records having coordinates with at least four decimal digits (11.1 m precision at the equator) in the World Geodetic System 1984 (WGS84) coordinate reference system. Time period and grain Sampling years span from 1951 to 2021. Ninety-nine percent of the records have information on the year of the observation, 95% on the year and month, while 94% have a complete date. In the case of seven sub-datasets, exact dates can be retrieved upon communication with the data contributors. Major taxa and level of measurement Ephemeroptera, Plecoptera, Trichoptera and Odonata, standardized at the genus taxonomic level. We provide species names for 7,727,980 (93%) records without further taxonomic verification. Software format The entire tab-separated value (.csv) database can be downloaded and visualized at https://glowabio.org/project/epto_database/. Fifty individual datasets are also available at https://f

Published
2023
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12. Disturbance-driven alteration of patch connectivity determines local biodiversity recovery within metacommunities

Author

Jacquet, C. (Claire), Munoz, F. (François), Bonada, N. (Núria), Datry, T. (Thibault), Heino, J. (Jani), Jabot, F. (Franck), Jacquet, C. (Claire), Munoz, F. (François), Bonada, N. (Núria), Datry, T. (Thibault), Heino, J. (Jani), and Jabot, F. (Franck)

Abstract

Understanding the capacity of ecological systems to withstand and recover from disturbances is a major challenge for ecological research in the context of environmental changes. Past research has mostly focused on the local effects of disturbances on biodiversity recovery, while alterations of inter-patch connectivity induced by disturbances have received comparatively less attention. Here, we investigated the effect of disturbances on local biodiversity recovery within metacommunities. Our specific focus was on drying river networks, which are characterised by a high variability of patch connectivity. We found marked variations of local biodiversity recovery among sites and among groups of organisms with contrasting dispersal modes, which were explained by the amount of patch connectivity loss due to drying events. Local communities of flying organisms recovered more efficiently from drying events than organisms with strictly aquatic dispersal due to the capacity of the former group to overcome hydrological connectivity loss. As a general rule, loss of patch connectivity decreases community recovery, regardless of patch location in the river network, dispersal mode or drying spatial extent. The relationship between patch connectivity loss and community recovery we found in river networks is general and applicable to any spatial network with a high variability of patch connectivity.

Published
2022

13. A global agenda for advancing freshwater biodiversity research

Author

Maasri, A., Jähnig, S. C., Adamescu, M. C., Adrian, R., Baigun, C., Baird, D. J., Batista-Morales, A., Bonada, N., Brown, M. L., Cai, Q., Campos-Silva, J. V., Clausnitzer, V., Contreras-MacBeath, T., Cooke, S. J., Datry, T., Delacámara, G., De Meester, L., Dijkstra, D. K. B., Do, V. T., Domisch, S., Dudgeon, D., Erös, T., Freitag, H., Freyhof, J., Friedrich, J., Friedrichs-Manthey, M., Geist, J., Gessner, M. O., Goethals, P., Gollock, M., Gordon, C., Grossart, H. P., Gulemvuga, V., Gutiérrez-Fonseca, P. E., Haase, P., Hering, D., Hahn, H. J., Hawkins, C. P., He, F., Heino, J., Hermoso, V., Hogan, Z., Hölker, F., Jeschke, J. M., Jiang, M., Johnson, R. K., Kalinkat, G., Karimov, B. K., Kasangaki, A., Kimirei, I. A., Kohlmann, B., Kuemmerlen, M., Kuiper, J. J., Kupilas, B., Langhans, S. D., Lansdown, R., Leese, F., Magbanua, F. S., Matsuzaki, S. i. S., Monaghan, M. T., Mumladze, L., Muzon, J., Mvogo Ndongo, P. A., Nejstgaard, J. C., Nikitina, O., Ochs, S., Odume, O., Opperman, J. J., Patricio, H., Pauls, S., Raghavan, R., Ramírez, A., Rashni, B., Ross-Gillespie, V., Samways, M. J., Schäfer, R. B., Schmidt-Kloiber, A., Seehausen, O., Shah, D. N., Sharma, S., Soininen, J., Sommerwerk, N., Stockwell, J. D., Suhling, F., Tachamo Shah, R. D., Tharme, R. E., Thorp, J. H., Tickner, D., Tockner, K., Tonkin, J. D., Valle, M., Vitule, J., Volk, M., Wang, D., Worischka, S., Wolter, C., Maasri, A., Jähnig, S. C., Adamescu, M. C., Adrian, R., Baigun, C., Baird, D. J., Batista-Morales, A., Bonada, N., Brown, M. L., Cai, Q., Campos-Silva, J. V., Clausnitzer, V., Contreras-MacBeath, T., Cooke, S. J., Datry, T., Delacámara, G., De Meester, L., Dijkstra, D. K. B., Do, V. T., Domisch, S., Dudgeon, D., Erös, T., Freitag, H., Freyhof, J., Friedrich, J., Friedrichs-Manthey, M., Geist, J., Gessner, M. O., Goethals, P., Gollock, M., Gordon, C., Grossart, H. P., Gulemvuga, V., Gutiérrez-Fonseca, P. E., Haase, P., Hering, D., Hahn, H. J., Hawkins, C. P., He, F., Heino, J., Hermoso, V., Hogan, Z., Hölker, F., Jeschke, J. M., Jiang, M., Johnson, R. K., Kalinkat, G., Karimov, B. K., Kasangaki, A., Kimirei, I. A., Kohlmann, B., Kuemmerlen, M., Kuiper, J. J., Kupilas, B., Langhans, S. D., Lansdown, R., Leese, F., Magbanua, F. S., Matsuzaki, S. i. S., Monaghan, M. T., Mumladze, L., Muzon, J., Mvogo Ndongo, P. A., Nejstgaard, J. C., Nikitina, O., Ochs, S., Odume, O., Opperman, J. J., Patricio, H., Pauls, S., Raghavan, R., Ramírez, A., Rashni, B., Ross-Gillespie, V., Samways, M. J., Schäfer, R. B., Schmidt-Kloiber, A., Seehausen, O., Shah, D. N., Sharma, S., Soininen, J., Sommerwerk, N., Stockwell, J. D., Suhling, F., Tachamo Shah, R. D., Tharme, R. E., Thorp, J. H., Tickner, D., Tockner, K., Tonkin, J. D., Valle, M., Vitule, J., Volk, M., Wang, D., Worischka, S., and Wolter, C.

Published
2022

14. Modelos de Distribución de Especie de Telmatogeton magellanicus (Diptera: Chironomidae) como herramienta para detectar los avances del cambio climático en la Reserva de Biosfera de Cabo de Hornos, ecorregión subantártica de Magallanes

Author

De la Riva Fernández, J., Lamela Gracia, M.T., Montorio Llovería, R., Pérez Cabello, F., Rodrigues Mimbrero, M., Gañán, M., Contador, T., Rendoll Cárcamo, J., Simões, F., Bonada, N., Convey, P., De la Riva Fernández, J., Lamela Gracia, M.T., Montorio Llovería, R., Pérez Cabello, F., Rodrigues Mimbrero, M., Gañán, M., Contador, T., Rendoll Cárcamo, J., Simões, F., Bonada, N., and Convey, P.

Abstract

Los impactos del cambio climático están afectando fuertemente los ecosistemas, comunidades y especies terrestres y acuáticas de las regiones polares y subpolares. La ecorregión subantártica de Magallanes, debido a sus características y condiciones geográficas, representa un laboratorio natural para investigar respuestas de la biota terrestre y acuática al cambio climático. En este estudio, investigamos los cambios en los patrones de distribución del díptero subantártico Telmatogeton magellanicus (Chironomidae), nativo de los hábitats intermareales del sur de la ecorregión subantártica de Magallanes, en la Reserva de la Biosfera Cabo de Hornos, y cómo esta especie podría ser un buen centinela de cambio climático. A través del modelado de nicho ecológico o modelos de distribución de especies, modelamos la distribución actual y proyectada al futuro de T. magellanicus bajo dos escenarios de cambio climático predichos por el IPCC (SSP2-4.5 y SSP5-8.5). Los primeros resultados indican que para el escenario más catastrófico (SSP5-8.5) las consecuencias ecológicas del cambio climático no favorecerían a T. magellanicus, reduciendo su hábitat idóneo casi por completo, lo que podría conducir a la extinción local de varias poblaciones.

Published
2022

17. Author Correction: A global analysis of terrestrial plant litter dynamics in non-perennial waterways

Author

Datry, T., Foulquier, A., Corti, R., von Schiller, D., Tockner, K., Mendoza-Lera, C., Clément, J. C., Gessner, M. O., Moleón, M., Stubbington, R., Gücker, B., Albariño, R., Allen, D. C., Altermatt, F., Arce, M. I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M. L., Blanco-Libreros, J. F., Blessing, J. J., Boëchat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup Barría, K. C., Bruder, A., Burrows, R. M., Cancellario, T., Canhoto, C., Carlson, S. M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas Terra, Bianca, De Girolamo, A. M, de La Barra, Evans, del Campo, R., Diaz-Villanueva, V. D., Dyer, F., Elosegi, A., Faye, E., Febria, C., Four, B., Gafny, S., Ghate, S. D., Gómez, R., Gómez-Gener, L., Graça, M. A. S., Guareschi, S., Hoppeler, F., Hwan, J. L., Jones, J. I., Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J. C., Martín, E., McIntosh, A. R., Meyer, E. I., Miliša, M., Mlambo, M. C., Morais, M., Moya, N., Negus, P. M., Niyogi, D. K., Papatheodoulou, A., Pardo, I., Pařil, P., Pauls, S. U., Pešić, V., Polášek, M., Robinson, C. T., Rodríguez-Lozano, P., Rolls, R. J., Sánchez-Montoya, M. M., Savić, A., Shumilova, O., Sridhar, K. R., Steward, A. L., Storey, R., Taleb, A., Uzan, A., Vander Vorste, Ross, Waltham, N. J., Woelfle-Erskine, C., Zak, D., Zarfl, C., and Zoppini, A.

Published
2018
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18. A global agenda for advancing freshwater biodiversity research

Author

Maasri, A., Jähnig, S.C., Adamescu, M.C., Adrian, R., Baigun, C., Baird, D.J., Batista-Morales, A., Bonada, N., Brown, L.E., Cai, Q., Campos-Silva, J.V., Clausnitzer, V., Contreras-MacBeath, T., Cooke, S.J., Datry, T., Delacámara, G., De Meester, L., Dijkstra, K.-D.B., Do, V.T., Domisch, S., Dudgeon, D., Erös, T., Freitag, H., Freyhof, J., Friedrich, J., Friedrichs-Manthey, M., Geist, J., Gessner, M.O., Goethals, P., Gollock, M., Gordon, C., Grossart, H.-P., Gulemvuga, G., Gutiérrez-Fonseca, P.E., Haase, P., Hering, D., Hahn, H.J., Hawkins, C.P., He, F., Heino, J., Hermoso, V., Hogan, Z., Hölker, F., Jeschke, J.M., Jiang, M., Johnson, R.K., Kalinkat, G., Karimov, B.K., Kasangaki, A., Kimirei, I.A., Kohlmann, B., Kuemmerlen, M., Kuiper, J.J., Kupilas, B., Langhans, S.D., Lansdown, R., Leese, F., Magbanua, F.S., Matsuzaki, S.S., Monaghan, M.T., Mumladze, L., Muzon, J., Mvogo Ndongo, P.A., Nejstgaard, J.C., Nikitina, O., Ochs, C., Odume, O.N., Opperman, J.J., Patricio, H., Pauls, S.U., Raghavan, R., Ramírez, A., Rashni, B., Ross-Gillespie, V., Samways, M.J., Schäfer, R.B., Schmidt-Kloiber, A., Seehausen, O., Shah, D.N., Sharma, S., Soininen, J., Sommerwerk, N., Stockwell, J.D., Suhling, F., Tachamo Shah, R.D., Tharme, R.E., Thorp, J.H., Tickner, D., Tockner, K., Tonkin, J.D., Valle, M., Vitule, J., Volk, Martin, Wang, D., Wolter, C., Worischka, S., Maasri, A., Jähnig, S.C., Adamescu, M.C., Adrian, R., Baigun, C., Baird, D.J., Batista-Morales, A., Bonada, N., Brown, L.E., Cai, Q., Campos-Silva, J.V., Clausnitzer, V., Contreras-MacBeath, T., Cooke, S.J., Datry, T., Delacámara, G., De Meester, L., Dijkstra, K.-D.B., Do, V.T., Domisch, S., Dudgeon, D., Erös, T., Freitag, H., Freyhof, J., Friedrich, J., Friedrichs-Manthey, M., Geist, J., Gessner, M.O., Goethals, P., Gollock, M., Gordon, C., Grossart, H.-P., Gulemvuga, G., Gutiérrez-Fonseca, P.E., Haase, P., Hering, D., Hahn, H.J., Hawkins, C.P., He, F., Heino, J., Hermoso, V., Hogan, Z., Hölker, F., Jeschke, J.M., Jiang, M., Johnson, R.K., Kalinkat, G., Karimov, B.K., Kasangaki, A., Kimirei, I.A., Kohlmann, B., Kuemmerlen, M., Kuiper, J.J., Kupilas, B., Langhans, S.D., Lansdown, R., Leese, F., Magbanua, F.S., Matsuzaki, S.S., Monaghan, M.T., Mumladze, L., Muzon, J., Mvogo Ndongo, P.A., Nejstgaard, J.C., Nikitina, O., Ochs, C., Odume, O.N., Opperman, J.J., Patricio, H., Pauls, S.U., Raghavan, R., Ramírez, A., Rashni, B., Ross-Gillespie, V., Samways, M.J., Schäfer, R.B., Schmidt-Kloiber, A., Seehausen, O., Shah, D.N., Sharma, S., Soininen, J., Sommerwerk, N., Stockwell, J.D., Suhling, F., Tachamo Shah, R.D., Tharme, R.E., Thorp, J.H., Tickner, D., Tockner, K., Tonkin, J.D., Valle, M., Vitule, J., Volk, Martin, Wang, D., Wolter, C., and Worischka, S.

Abstract

Global freshwater biodiversity is declining dramatically, and meeting the challenges of this crisis requires bold goals and the mobilisation of substantial resources. While the reasons are varied, investments in both research and conservation of freshwater biodiversity lag far behind those in the terrestrial and marine realms. Inspired by a global consultation, we identify 15 pressing priority needs, grouped into five research areas, in an effort to support informed stewardship of freshwater biodiversity. The proposed agenda aims to advance freshwater biodiversity research globally as a critical step in improving coordinated actions towards its sustainable management and conservation.

Published
2021

20. Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams

Author

von Schiller, D, Datry, T, Corti, R, Foulquier, A, Tockner, K, Marcé, R, García‐Baquero, G, Odriozola, I, Obrador, B, Elosegi, A, Mendoza‐Lera, C, Gessner, M O, Stubbington, R, Albariño, R, Allen, D C, Altermatt, Florian, Arce, M I, Arnon, S, Banas, D, Banegas‐Medina, A, Beller, E, Blanchette, M L, Blanco‐Libreros, J F, Blessing, J, Boëchat, I G, Boersma, K S, Bogan, M T, Bonada, N, Bond, N R, Brintrup, K, et al, University of Zurich, and von Schiller, D

Subjects
Environmental Chemistry river, Atmospheric Science, Global and Planetary Change, stream, 2306 Global and Planetary Change, temporary, 2300 General Environmental Science, 10127 Institute of Evolutionary Biology and Environmental Studies, intermittent, 2304 Environmental Chemistry, 1902 Atmospheric Science, 570 Life sciences, biology, 590 Animals (Zoology), respiration, General Environmental Science
Published
2019

21. The three Rs of river ecosystem resilience: Resources, recruitment, and refugia

Author

Van Looy, K., Tonkin, J.D., Floury, M., Leigh, C., Soininen, J., Larsen, S., Heino, J., Le Roy Poff, N., Delong, M., Jahnig, S.C., Datry, T., Bonada, N., Tison-Rosebery, Juliette, Jamoneau, Aurélien, Ormerod, S.J., Collier, K.J., Wolter, C., Institute of Bio- and Geosciences [Jülich] (IBG), Forschungszentrum Jülich GmbH, Department of River Ecology and Conservation, Senckenberg Research Institute and Natural History Museum Frankfurt, Gelnhausen, Germany, Laboratoire Microorganismes : Génome et Environnement (LMGE), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université d'Auvergne - Clermont-Ferrand I (UdA)-Centre National de la Recherche Scientifique (CNRS), Griffith University [Brisbane], University of Helsinki, Natural Environment Centre [Oulu], Finnish Environment Institute (SYKE), Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Grup de Recerca 'Freshwater Biology and Management' (FEM), Universitat de Barcelona (UB), Unité Dynamiques des Systèmes Anthropisés, Université de Picardie Jules Verne (UPJV), School of Biosciences [Cardiff], Cardiff University, Leibniz Institute of Freshwater Ecology & Inland Fisheries, IRSTEA Lyon, DEPARTMENT OF INTEGRATIVE BIOLOGY OREGON STATE UNIVERSITY CORVALLIS OREGON USA, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), School of biological Sciences [Christchurch], University of Canterbury [Christchurch], Queensland University of Technology [Brisbane] (QUT), Australian Rivers Institute, German Ctr Integrat Biodivers Res iDiv, Leipzig, Germany, Partenaires INRAE, DEPARTMENT OF BIOLOGY COLORADO STATE UNIVERSITY FORT COLLINS COLORADO USA, Colorado State University [Fort Collins] (CSU), University of Canberra, DEPARTMENT OF BIOLOGY WINONA STATE UNIVERSITY WINONA MINNESOTA USA, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), IRSTEA Bordeaux, Univ Waikato, Sch Sci, Environm Res Inst, Hamilton, New Zealand, Federal Ministry of Education & Research (BMBF) 1 LN1320A, H2020 Science with and for Society 642317, European Project: 642317,H2020,H2020-SC5-2014-two-stage,AQUACROSS(2015), INSTITUTE OF BIO AND GEOSCIENCESJULICH DEU, RiverLy (UR Riverly), SCIENCE AND ENGINEERING FACULTY QUEENSLAND UNIVERSITY OF TECHNOLOGY BRISBANE AUS, Helsingin yliopisto = Helsingfors universitet = University of Helsinki, German Centre for Integrative Biodiversity Research (iDiv), FINNISH ENVIRONMENT INSTITUTE OULU FIN, INSTITUTE FOR APPLIED ECOLOGY UNIVERSITY OF CANBERRA AUS, LEIBNIZ INSTITUTE OF FRESHWATER ECOLOGY AND INLAND FISHERIES BERLIN DEU, GRUP DE RECERCA FRESHWATER ECOLOGY AND MANAGEMENT DEPARTMENT DE BIOLOGIA EVOLUTIVA ECOLOGIA I CIENCIES AMBIENTALS FACULTAT DE BIOLOGIA INSTITUT DE RECERCA DE LA BIODIVERSITAT UNIVERSITAT DE BARCELONA ESP, Ecosystèmes aquatiques et changements globaux (UR EABX), Water Research Institute [Cardiff], ENVIRONMENTAL RESEARCH INSTITUTE THE UNIVERSITY OF WAIKATO HAMILTON NZL, SCHOOL OF BIOLOGICAL SCIENCES UNIVERSITY OF CANTERBURY CHRISTCHURCH NZL, and IDIV GERMAN CENTRE OF INTEGRATIVE BIODIVERSITY RESEARCH LEIPZIG DEU

Subjects
disturbance, resilience trait, recruitment, [SDE]Environmental Sciences, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, resource partitioning, functional redundancy, ComputingMilieux_MISCELLANEOUS
Abstract

[Departement_IRSTEA]Eaux [TR1_IRSTEA]QUASARE [ADD1_IRSTEA]Systèmes aquatiques soumis à des pressions multiples [Departement_IRSTEA]Eaux [TR1_IRSTEA]QUASARE [ADD1_IRSTEA]Systèmes aquatiques soumis à des pressions multiples; International audience; Resilience in river ecosystems requires that organisms must persist in the face of highly dynamic hydrological and geomorphological variations. Disturbance events such as floods and droughts are postulated to shape life history traits that support resilience, but river management and conservation would benefit from greater understanding of the emergent effects in communities of river organisms. We unify current knowledge of taxonomic‐, phylogenetic‐, and trait‐based aspects of river communities that might aid the identification and quantification of resilience mechanisms. Temporal variations in river productivity, physical connectivity, and environmental heterogeneity resulting from floods and droughts are highlighted as key characteristics that promote resilience in these dynamic ecosystems. Three community‐wide mechanisms that underlie resilience are (a) partitioning (competition/facilitation) of dynamically varying resources, (b) dispersal, recolonization, and recruitment promoted by connectivity, and (c) functional redundancy in communities promoted by resource heterogeneity and refugia. Along with taxonomic and phylogenetic identity, biological traits related to feeding specialization, dispersal ability, and habitat specialization mediate organism responses to disturbance. Measures of these factors might also enable assessment of the relative contributions of different mechanisms to community resilience. Interactions between abiotic drivers and biotic aspects of resource use, dispersal, and persistence have clear implications for river conservation and management. To support these management needs, we propose a set of taxonomic, phylogenetic, and life‐history trait metrics that might be used to measure resilience mechanisms. By identifying such indicators, our proposed framework can enable targeted management strategies to adapt river ecosystems to global change.

Published
2019

22. Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams

Author

von Schiller, D., Datry, T., Corti, R., Foulquier, A., Tockner, K., Marce, R., Garcia-Baquero, G., Odriozola, I, Obrador, B., Elosegi, A., Mendoza-Lera, C., Gessner, M. O., Stubbington, R., Albarino, R., Allen, D. C., Altermatt, F., Arce, M. , I, Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M. L., Blanco-Libreros, J. F., Blessing, J., Boechat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup, K., Bruder, A., Burrows, R. M., Cancellario, T., Carlson, S. M., Cauvy-Fraunie, S., Cid, N., Danger, M., de Freitas Terra, B., Dehedin, A., De Girolamo, A. M., del Campo, R., Diaz-Villanueva, V., Duerdoth, C. P., Dyer, F., Faye, E., Febria, C., Figueroa, R., Four, B., Gafny, S., Gomez, R., Gómez-Gener, Lluís, Graca, M. A. S., Guareschi, S., Gucker, B., Hoppeler, F., Hwan, J. L., Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J., Martin, E. J., McIntosh, A., Meyer, E. , I, Milisa, M., Mlambo, M. C., Moleon, M., Morais, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I, Paril, P., Pesic, V, Piscart, C., Polasek, M., Rodriguez-Lozano, P., Rolls, R. J., Sanchez-Montoya, M. M., Savic, A., Shumilova, O., Steward, A., Taleb, A., Uzan, A., Vander Vorste, R., Waltham, N., Woelfle-Erskine, C., Zak, D., Zarfl, C., Zoppini, A., von Schiller, D., Datry, T., Corti, R., Foulquier, A., Tockner, K., Marce, R., Garcia-Baquero, G., Odriozola, I, Obrador, B., Elosegi, A., Mendoza-Lera, C., Gessner, M. O., Stubbington, R., Albarino, R., Allen, D. C., Altermatt, F., Arce, M. , I, Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M. L., Blanco-Libreros, J. F., Blessing, J., Boechat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup, K., Bruder, A., Burrows, R. M., Cancellario, T., Carlson, S. M., Cauvy-Fraunie, S., Cid, N., Danger, M., de Freitas Terra, B., Dehedin, A., De Girolamo, A. M., del Campo, R., Diaz-Villanueva, V., Duerdoth, C. P., Dyer, F., Faye, E., Febria, C., Figueroa, R., Four, B., Gafny, S., Gomez, R., Gómez-Gener, Lluís, Graca, M. A. S., Guareschi, S., Gucker, B., Hoppeler, F., Hwan, J. L., Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J., Martin, E. J., McIntosh, A., Meyer, E. , I, Milisa, M., Mlambo, M. C., Moleon, M., Morais, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I, Paril, P., Pesic, V, Piscart, C., Polasek, M., Rodriguez-Lozano, P., Rolls, R. J., Sanchez-Montoya, M. M., Savic, A., Shumilova, O., Steward, A., Taleb, A., Uzan, A., Vander Vorste, R., Waltham, N., Woelfle-Erskine, C., Zak, D., Zarfl, C., and Zoppini, A.

Abstract

Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration and carbon dioxide (CO2) emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32-fold to 66-fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2 emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2-0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting-drying cycles on respiration and CO2 emissions in stream networks.

Published
2019
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23. Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams

Author

Von Schiller Calle, Daniel Gaspar, Datry, T., Corti, R., Foulquier, A., Tockner, K., Marcé, R., García-Baquero, G., Odriozola, I., Obrador, B., Elosegi Irurtia, Arturo, Mendoza-Lera, C., Gessner, M.O., Stubbington, R., Albariño, R., Allen, D.C., Altermatt, F., Arce, M.I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M.L., Blanco-Libreros, J.F., Blessing, J., Boëchat, I.G., Boersma, K.S., Bogan, M.T., Bonada, N., Bond, N.R., Brintrup, K., Bruder, A., Burrows, R.M., Cancellario, T., Carlson, S.M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas Terra, B., Dehedin, A., De Girolamo, A.M., del Campo, R., Díaz-Villanueva, V., Duerdoth, C.P., Dyer, F., Faye, E., Febria, C., Figueroa, R., Four, B., Gafny, S., Gómez, R., Gómez-Gener, L., Graça, M.A.S., Guareschi, S., Gücker, B., Hoppeler, F., Hwan, J.L., Kubheka, S., Laini, A., Langhans, S.D., Leigh, C., Little, C.J., Lorenz, S., Marshall, J., Martín, E.J., McIntosh, A., Meyer, E.I., Milisa, M., Mlambo, M.C., Moleón, M., Morais, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Paril, P., Pesic, V., Piscart, C., Polasek, M., Rodríguez-Lozano, P., Rolls, R.J., Sánchez-Montoya, M.M., Savic, A., Shumilova, O., Steward, A., Taleb, A., Uzan, A., Van der Vorste, R., Waltham, N., Woelfle-Erskine, C., Zak, D., Zarfl, C., Zoppini, A., Von Schiller Calle, Daniel Gaspar, Datry, T., Corti, R., Foulquier, A., Tockner, K., Marcé, R., García-Baquero, G., Odriozola, I., Obrador, B., Elosegi Irurtia, Arturo, Mendoza-Lera, C., Gessner, M.O., Stubbington, R., Albariño, R., Allen, D.C., Altermatt, F., Arce, M.I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M.L., Blanco-Libreros, J.F., Blessing, J., Boëchat, I.G., Boersma, K.S., Bogan, M.T., Bonada, N., Bond, N.R., Brintrup, K., Bruder, A., Burrows, R.M., Cancellario, T., Carlson, S.M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas Terra, B., Dehedin, A., De Girolamo, A.M., del Campo, R., Díaz-Villanueva, V., Duerdoth, C.P., Dyer, F., Faye, E., Febria, C., Figueroa, R., Four, B., Gafny, S., Gómez, R., Gómez-Gener, L., Graça, M.A.S., Guareschi, S., Gücker, B., Hoppeler, F., Hwan, J.L., Kubheka, S., Laini, A., Langhans, S.D., Leigh, C., Little, C.J., Lorenz, S., Marshall, J., Martín, E.J., McIntosh, A., Meyer, E.I., Milisa, M., Mlambo, M.C., Moleón, M., Morais, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Paril, P., Pesic, V., Piscart, C., Polasek, M., Rodríguez-Lozano, P., Rolls, R.J., Sánchez-Montoya, M.M., Savic, A., Shumilova, O., Steward, A., Taleb, A., Uzan, A., Van der Vorste, R., Waltham, N., Woelfle-Erskine, C., Zak, D., Zarfl, C., and Zoppini, A.

Abstract

Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration and carbon dioxide (CO2) emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32-fold to 66-fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2 emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2 0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting-drying cycles on respiration and CO2 emissions in stream networks. (c)2019. American Geophysical Union. All Rights Reserved.

Published
2019

24. 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 Calle, Daniel Gaspar, Corti, R., Foulquier, A., Obrador, B., Tockner, K., Allan, D.C., Altermatt, F., Arce, M.I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M.L., Blanco-Libreros, J.F., Blessing, J., Boëchat, I.G., Boersma, K., Bogan, M.T., Bonada, N., Bond, N.R., Brintrup, K., Bruder, A., Burrows, R., Cancellario, T., Carlson, S.M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas, Terra, B., Girolamo, A.M.D., del Campo, R., Dyer, F., Elosegi, A., Faye, E., Febria, C., Figueroa, R., Four, B., Gessner, M.O., Gnohossou, P., Cerezo, R.G., Gomez-Gener, L., Graça, M.A.S., Guareschi, S., Gücker, B., Hwan, J.L., Kubheka, S., Langhans, S.D., Leigh, C., Little, C.J., Lorenz, S., Marshall, J., McIntosh, A., Mendoza-Lera, C., Meyer, E.I., Milisa, M., Mlambo, M.C., Moleón, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Paril, P., Pesic, V., Rodriguez-Lozano, P., Rolls, R.J., Sanchez-Montoya, M.M., Savic, A., Steward, A., Stubbington, R., Taleb, A., Vorste, R.V., Waltham, N., Zoppini, A., Zarfl, C., Shumilova, O., Zak, D., Datry, T., Von Schiller Calle, Daniel Gaspar, Corti, R., Foulquier, A., Obrador, B., Tockner, K., Allan, D.C., Altermatt, F., Arce, M.I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M.L., Blanco-Libreros, J.F., Blessing, J., Boëchat, I.G., Boersma, K., Bogan, M.T., Bonada, N., Bond, N.R., Brintrup, K., Bruder, A., Burrows, R., Cancellario, T., Carlson, S.M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas, Terra, B., Girolamo, A.M.D., del Campo, R., Dyer, F., Elosegi, A., Faye, E., Febria, C., Figueroa, R., Four, B., Gessner, M.O., Gnohossou, P., Cerezo, R.G., Gomez-Gener, L., Graça, M.A.S., Guareschi, S., Gücker, B., Hwan, J.L., Kubheka, S., Langhans, S.D., Leigh, C., Little, C.J., Lorenz, S., Marshall, J., McIntosh, A., Mendoza-Lera, C., Meyer, E.I., Milisa, M., Mlambo, M.C., Moleón, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Paril, P., Pesic, V., Rodriguez-Lozano, P., Rolls, R.J., Sanchez-Montoya, M.M., Savic, A., Steward, A., Stubbington, R., Taleb, A., Vorste, R.V., Waltham, N., Zoppini, A., and Zarfl, C.

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 g

Published
2019

25. 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, Isabel Arce, M, Arnon, S, Banas, D, Banegas-Medina, A, Beller, E, Blanchette, ML, Blanco-Libreros, JF, Blessing, J, Boechat, IG, Boersma, K, Bogan, MT, Bonada, N, Bond, NR, Brintrup, K, Bruder, A, Burrows, R, Cancellario, T, Carlson, SM, Cauvy-Fraunie, S, Cid, N, Danger, M, de Freitas Terra, B, De 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, Graca, MAS, Guareschi, S, Guecker, B, Hwan, JL, Kubheka, S, Langhans, SD, Leigh, C, Little, CJ, Lorenz, S, Marshall, J, McIntosh, A, Mendoza-Lera, C, Meyer, EI, Milisa, M, Mlambo, MC, Moleon, M, Negus, P, Niyogi, D, Papatheodoulou, A, Pardo, I, Paril, P, Pesic, V, Rodriguez-Lozano, P, Rolls, RJ, Sanchez-Montoya, MM, Savic, A, Steward, A, Stubbington, R, Taleb, A, Vander Vorste, R, Waltham, N, Zoppini, A, Zarfl, C, Shumilova, O, Zak, D, Datry, T, von Schiller, D, Corti, R, Foulquier, A, Obrador, B, Tockner, K, Allan, DC, Altermatt, F, Isabel Arce, M, Arnon, S, Banas, D, Banegas-Medina, A, Beller, E, Blanchette, ML, Blanco-Libreros, JF, Blessing, J, Boechat, IG, Boersma, K, Bogan, MT, Bonada, N, Bond, NR, Brintrup, K, Bruder, A, Burrows, R, Cancellario, T, Carlson, SM, Cauvy-Fraunie, S, Cid, N, Danger, M, de Freitas Terra, B, De 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, Graca, MAS, Guareschi, S, Guecker, B, Hwan, JL, Kubheka, S, Langhans, SD, Leigh, C, Little, CJ, Lorenz, S, Marshall, J, McIntosh, A, Mendoza-Lera, C, Meyer, EI, Milisa, M, Mlambo, MC, Moleon, M, Negus, P, Niyogi, D, Papatheodoulou, A, Pardo, I, Paril, P, Pesic, V, Rodriguez-Lozano, P, Rolls, RJ, Sanchez-Montoya, MM, Savic, A, Steward, A, Stubbington, R, Taleb, A, Vander Vorste, R, Waltham, N, Zoppini, A, and Zarfl, C

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 g

Published
2019

26. Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams

Author

von Schiller, D; https://orcid.org/0000-0002-9493-3244, Datry, T; https://orcid.org/0000-0003-1390-6736, Corti, R, Foulquier, A, Tockner, K, Marcé, R; https://orcid.org/0000-0002-7416-4652, García‐Baquero, G; https://orcid.org/0000-0001-6550-1584, Odriozola, I; https://orcid.org/0000-0002-5289-7935, Obrador, B; https://orcid.org/0000-0003-4050-0491, Elosegi, A, Mendoza‐Lera, C; https://orcid.org/0000-0002-3222-2498, Gessner, M O, Stubbington, R, Albariño, R, Allen, D C, Altermatt, Florian, Arce, M I, Arnon, S; https://orcid.org/0000-0002-7109-8979, Banas, D, Banegas‐Medina, A, Beller, E, Blanchette, M L, Blanco‐Libreros, J F, Blessing, J, Boëchat, I G; https://orcid.org/0000-0002-9651-6364, Boersma, K S, Bogan, M T, Bonada, N, Bond, N R; https://orcid.org/0000-0003-4294-6008, Brintrup, K, et al, von Schiller, D; https://orcid.org/0000-0002-9493-3244, Datry, T; https://orcid.org/0000-0003-1390-6736, Corti, R, Foulquier, A, Tockner, K, Marcé, R; https://orcid.org/0000-0002-7416-4652, García‐Baquero, G; https://orcid.org/0000-0001-6550-1584, Odriozola, I; https://orcid.org/0000-0002-5289-7935, Obrador, B; https://orcid.org/0000-0003-4050-0491, Elosegi, A, Mendoza‐Lera, C; https://orcid.org/0000-0002-3222-2498, Gessner, M O, Stubbington, R, Albariño, R, Allen, D C, Altermatt, Florian, Arce, M I, Arnon, S; https://orcid.org/0000-0002-7109-8979, Banas, D, Banegas‐Medina, A, Beller, E, Blanchette, M L, Blanco‐Libreros, J F, Blessing, J, Boëchat, I G; https://orcid.org/0000-0002-9651-6364, Boersma, K S, Bogan, M T, Bonada, N, Bond, N R; https://orcid.org/0000-0003-4294-6008, Brintrup, K, and et al

Abstract

Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration and carbon dioxide (CO2) emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32‐fold to 66‐fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2 emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2–0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting‐drying cycles on respiration and CO2 emissions in stream networks.

Published
2019

27. Correction:A global analysis of terrestrial plant litter dynamics in non-perennial waterways (Nature Geoscience DOI: 10.1038/s41561-018-0134-4)

Author

Datry, T., Foulquier, A., Corti, R., Von Schiller, D., Tockner, K., Mendoza-Lera, C., Clément, J. C., Gessner, M. O., Moleón, M., Stubbington, R., Gücker, B., Albarinõ, R., Allen, D. C., Altermatt, F., Arce, M. I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M. L., Blanco-Libreros, J. F., Blessing, J. J., Boëchat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup Barriá, K. C., Bruder, A., Burrows, R. M., Cancellario, T., Canhoto, C., Carlson, S. M., Cauvy-Fraunié, S., Cid, N., Danger, M., De Freitas Terra, Bianca, De Girolamo, A. M., De La Barra, Evans, Del Campo, R., Diaz-Villanueva, V. D., Dyer, F., Elosegi, A., Faye, E., Febria, C., Four, B., Gafny, S., Ghate, S. D., Gómez, R., Gómez-Gener, L., Gracą, M. A.S., Guareschi, S., Hoppeler, F., Hwan, J. L., Jones, J. I., Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J. C., Martín, E., McIntosh, A. R., Meyer, E. I., Miliša, M., Mlambo, M. C., Morais, M., Moya, N., Negus, P. M., Niyogi, D. K., Papatheodoulou, A., Pardo, I., Pařil, P., Pauls, S. U., Pešić, V., Polášek, M., Robinson, C. T., Rodríguez-Lozano, P., Rolls, R. J., Sánchez-Montoya, M. M., Savić, A., Shumilova, O., Sridhar, K. R., Steward, A. L., Storey, R., Taleb, A., Uzan, A., Vander Vorste, Ross, Waltham, N. J., Woelfle-Erskine, C., Zak, D., Zarfl, C., and Zoppini, A.

Abstract

In the version of this Article originally published, the affiliation for M. I. Arce was incorrect; it should have been: Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany. This has now been corrected in the online versions of the Article.

Published
2018

28. Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams

Author

von Schiller, D., primary, Datry, T., additional, Corti, R., additional, Foulquier, A., additional, Tockner, K., additional, Marcé, R., additional, García‐Baquero, G., additional, Odriozola, I., additional, Obrador, B., additional, Elosegi, A., additional, Mendoza‐Lera, C., additional, Gessner, M. O., additional, Stubbington, R., additional, Albariño, R., additional, Allen, D. C., additional, Altermatt, F., additional, Arce, M. I., additional, Arnon, S., additional, Banas, D., additional, Banegas‐Medina, A., additional, Beller, E., additional, Blanchette, M. L., additional, Blanco‐Libreros, J. F., additional, Blessing, J., additional, Boëchat, I. G., additional, Boersma, K. S., additional, Bogan, M. T., additional, Bonada, N., additional, Bond, N. R., additional, Brintrup, K., additional, Bruder, A., additional, Burrows, R. M., additional, Cancellario, T., additional, Carlson, S. M., additional, Cauvy‐Fraunié, S., additional, Cid, N., additional, Danger, M., additional, de Freitas Terra, B., additional, Dehedin, A., additional, De Girolamo, A. M., additional, del Campo, R., additional, Díaz‐Villanueva, V., additional, Duerdoth, C. P., additional, Dyer, F., additional, Faye, E., additional, Febria, C., additional, Figueroa, R., additional, Four, B., additional, Gafny, S., additional, Gómez, R., additional, Gómez‐Gener, L., additional, Graça, M. A. S., additional, Guareschi, S., additional, Gücker, B., additional, Hoppeler, F., additional, Hwan, J. L., additional, Kubheka, S., additional, Laini, A., additional, Langhans, S. D., additional, Leigh, C., additional, Little, C. J., additional, Lorenz, S., additional, Marshall, J., additional, Martín, E. J., additional, McIntosh, A., additional, Meyer, E. I., additional, Miliša, M., additional, Mlambo, M. C., additional, Moleón, M., additional, Morais, M., additional, Negus, P., additional, Niyogi, D., additional, Papatheodoulou, A., additional, Pardo, I., additional, Pařil, P., additional, Pešić, V., additional, Piscart, C., additional, Polášek, M., additional, Rodríguez‐Lozano, P., additional, Rolls, R. J., additional, Sánchez‐Montoya, M. M., additional, Savić, A., additional, Shumilova, O., additional, Steward, A., additional, Taleb, A., additional, Uzan, A., additional, Vander Vorste, R., additional, Waltham, N., additional, Woelfle‐Erskine, C., additional, Zak, D., additional, Zarfl, C., additional, and Zoppini, A., additional

Published
2019
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30. Chapter 1 : General introduction

Author

Datry, T., Bonada, N., Boulton, A.J., Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), UNIVERSITAT DE BARCELONA ESP, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), UNIVERSITY OF NEW ENGLAND ARMIDALE AUS, and Irstea Publications, Migration

Subjects
[SDE] Environmental Sciences, [SDE]Environmental Sciences
Abstract

International audience; Intermittent rivers and ephemeral streams (IRES) are flowing waters that cease flow and/or dry at some point along their course. Multiple natural and anthropogenic processes generate flow intermittence which influences almost every biogeochemical and ecological process in IRES. IRES are dynamic mosaics of flowing, nonflowing water and terrestrial habitats, harboring distinctive aquatic, semi-aquatic, and terrestrial organisms that use different strategies to persist IRES suffer the same impacts of human activities as perennial streams and rivers but are often less valued. A better understanding of the ecology of IRES will improve their legislative protection, restoration, and management.

Published
2017

31. Integrating dispersal proxies in ecological and environmental research in the freshwater realm

Author

Heino, J., Alahuhta, J., Ala Hulkko, T., Antikainen, H., Bini, L.M., Bonada, N., Datry, T., Eros, T., Kotavaara, O., Melo, A.S., Soininen, J., Hjort, J., FINNISH ENVIRONMENT INSTITUTE OULU FIN, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), UNIVERSITY OF OULU FIN, UNIVERSIDADE FEDERAL DE GOIAS BRA, GRUP DE RECERCA FRESHWATER ECOLOGY AND MANAGEMENT BARCELONA ESP, Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), BALATON LIMNOLOGICAL INSTITUTE TIHANY HUN, and UNIVERSITY OF HELSINKI FIN

Subjects
0106 biological sciences, Metacommunity, links, metacommunity, CONSERVATION, Distribution (economics), 010603 evolutionary biology, 01 natural sciences, transport geography, Realm, Environmental impact assessment, 14. Life underwater, dispersal, freshwater, Restoration ecology, General Environmental Science, bioassessment, NOEUDS, MECANISME DE DISPERSION, Community, METACOMMUNAUTE, Ecology, business.industry, 010604 marine biology & hydrobiology, conservation, Environmental research, EVALUATION BIOLOGIQUE, 15. Life on land, 6. Clean water, accessibility, Geography, 13. Climate action, connectivity, [SDE]Environmental Sciences, Biological dispersal, nodes, CONNECTIVITE, ACCESSIBILITE, LIENS, GEOGRAPHIE DU TRANSPORT, business, EAU DOUCE
Abstract

International audience; Le mécanisme de dispersion est un des mécanismes clés à avoir un effet sur la répartition des individus, des populations et des communautés dans la nature. Malgré des progrès au niveau de l'étude des espèces uniques, il a été notoirement difficile de représenter le mécanisme de dispersion quant aux métacommununautés multispécifiques, où ce mécanisme a potentiellement des répercussions marquées sur la structure communautaire au-delà de celles des conditions environnementales locales. La dispersion devrait ainsi être directement intégrée tant au niveau de la recherche fondamentale qu'appliquée, et ce, au moyen de variables substitutives. Ici, nous passons en revue l'utilisation de variables substitutives dans la recherche actuelle des métacommunautés, suggérons de nouvelles variables substitutives et discutons comment les variables substitutives pourraient être utilisées au niveau de la modélisation de communautés, particulièrement concernant les systèmes d'eau douce. Nous suggérons que tandis que des variables substitutives traditionnelles peuvent toujours être utiles, les variables substitutives autrefois utilisées dans la géographie du transport peuvent fournir de nouveaux renseignements utiles en ce qui concerne la structure de communautés de systèmes d'eau douce. Nous suggérons aussi que comprendre l'utilité de telles variables substitutives au niveau de la dispersion dans les métacommunautés soit de la plus haute importance dans beaucoup de domaines appliqués, comme l'évaluation biologique d'eau douce, la planification de conservation et la recherche en matière de reconstitution du milieu naturel. Ces domaines de recherche n'ont souvent pas tenu compte de la dynamique spatiale et se sont concentrés surtout sur des conditions environnementales locales et des changements afférents. Pourtant, les conclusions de ces études appliquées peuvent changer considérablement si le mécanisme de dispersion est pris en compte.

Published
2017

32. Biodiversity in intermittent rivers: a meta-analysis

Author

Soria, M., Leigh, C., Datry, T., Bini, M., Bonada, N., DEPARTMENT DE BIOLOGIA EVOLUTIVA FACULTAT DE BIOLOGIA IRBIO UNIVERSIDAD DE BARCELONA ESP, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Australian Rivers Institute, Griffith University [Brisbane], INSTITUTE DE CIENCIAS BIOLOGICAS UNIVERSIDAD DE GOIAS BRA, and UNIVERSIDAD DE BARCELONA ESP

Subjects
[SDE]Environmental Sciences
Abstract

International audience; Comprehensive knowledge of the effects of disturbances on biodiversity is crucial for conservation and management, not least because ecosystems with low biodiversity may be the most vulnerable. In rivers, the role of disturbance in shaping aquatic biodiversity has mainly focused on floods. Perennial rivers (PRs) often flood, whereas intermittent rivers (IRs) flood, stop flowing and dry. Despite the recent and significant increase in research on IRs, controversy remains about whether they are more or less biodiverse than PRs. Our aim was to determine (Q1) if PRs and IRs differ in biodiversity and (Q2) if the direction and magnitude of the differences (effect sizes) are related to environmental (climate, season, habitat, longitudinal zonation and anthropogenic disturbance) and/or biological factors (taxonomic group). We conducted a meta-analysis on 44 published studies of PR and IR biodiversity that had replicated data. We applied random effects models to the data to obtain weighted mean effect sizes for differences between PRs and IRs, and their confidence intervals, by first considering all studies and then by splitting studies into groups on the basis of the above factors. We found that biodiversity was significantly higher in PRs than in IRs (Q1). We also detected significant differences (PRs> IRs) in studies of macroinvertebrates, in those conducted within arid and temperate climates, dry and wet sampling seasons, headwaters, and regions subject to different levels of anthropogenic disturbance (Q2). Our meta-analysis suggests that the expected increase in the prevalence of IRs in certain regions of the world due to global change could result in a decrease in freshwater biodiversity. To better manage and preserve aquatic biodiversity under future global change scenarios and to avoid potential ecosystem consequences of biodiversity loss, conservation efforts should be targeted towards those environmental conditions or taxonomic groups with significant differences (PRs > IRs).

Published
2017

33. Chapter 4.3. The biota of intermittent rivers and ephemeral streams: aquatic invertebrates

Author

Stubbington, R., Bogan, M.T., Bonada, N., Boulton, A.J., Datry, T., Leigh, C., Vander Vorste, R., Nottingham Trent University, UNIVERSITY OF ARIZONA TUCSON USA, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), UNIVERSITAT DE BARCELONA ESP, UNIVERSITY OF NEW ENGLAND ARMIDALE AUS, Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Centre de Synthèse et d’Analyse sur la Biodiversité (CESAB), Fondation pour la recherche sur la Biodiversité (FRB), and VIRGINIA WATER RESOURCES RESEARCH CENTER BLACKSBURG USA

Subjects
fungi, [SDE]Environmental Sciences, human activities
Abstract

International audience; Intermittent rivers and ephemeral streams (IRES) are temporally dynamic ecosystems that can support a diverse and distinctive aquatic invertebrate fauna – Resistance and resilience mechanisms allow species and communities to persist in IRES during dry phases and to recolonize quickly once flow returns – Human influences including climate change and water abstraction alter natural patterns of flow intermittence, with increasing intermittence typically reducing aquatic invertebrate diversity – Effective management, restoration, and legislation are needed to safeguard the diversity of IRES invertebrate communities

Published
2017

34. Intermittent Rivers and Ephemeral Streams. Ecology and Management

Author

Datry, T., Bonada, N., Boulton, A., Irstea Publications, Migration, Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), UNIVERSITAT DE BARCELONA ESP, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), and UNIVERSITY OF NEW ENGLAND ARMIDALE AUS

Subjects
[SDE] Environmental Sciences, [SDE]Environmental Sciences
Abstract

Intermittent Rivers and Ephemeral Streams: Ecology and Management takes an internationally broad approach, seeking to compare and contrast findings across multiple continents, climates, flow regimes, and land uses to provide a complete and integrated perspective on the ecology of these ecosystems. Coupled with this, users will find a discussion of management approaches applicable in different regions that are illustrated with relevant case studies. In a readable and technically accurate style, the book utilizes logically framed chapters authored by experts in the field, allowing managers and policymakers to readily grasp ecological concepts and their application to specific situations. Key Features: Provides up-to-date reviews of research findings and management strategies using international examples Explores themes and parallels across diverse sub-disciplines in ecology and water resource management utilizing a multidisciplinary and integrative approach Reveals the relevance of this scientific understanding to managers and policymakers

Published
2017

35. Chapter 4.10: Genetic, evolutionary, and biogeographical processes in intermittent rivers and ephemeral streams

Author

Bonada, N., Carlson, S.M., Datry, T., Finn, D.S., Leigh, C., Lytle, D.A., Monaghan, M.T., Tedesco, Patrick, UNIVERSITAT DE BARCELONA ESP, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), UNIVERSITY OF CALIFORNIA BERKELEY USA, Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), MISSOURI STATE UNIVERSITY SPRINGFIELD USA, Centre de Synthèse et d’Analyse sur la Biodiversité (CESAB), Fondation pour la recherche sur la Biodiversité (FRB), LEIBNIZ INSTITUTE OF FRESHWATER ECOLOGY AND INLAND FISHERIES BERLIN DEU, Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées

Subjects
fungi, [SDE]Environmental Sciences
Abstract

International audience; Intermittent rivers and ephemeral streams (IRES) are ideal ecosystems in which to study how ecological and evolutionary processes interact across levels of organization, from genes to ecosystems – Recurrent disturbance and succession processes are strong drivers of evolution in IRES and occur at varying spatial and temporal scales – Species inhabiting IRES exhibit many adaptations that are subject to trade-offs related to flow intermittence – Flow intermittence affects genetic and species diversity, speciation, and extinction, all of which affect ecosystem functions

Published
2017

36. Chapter 6: Conclusions: recent advances and future prospects in the ecology and management of intermittent rivers and ephemeral streams

Author

Datry, T., Bonada, N., Boulton, A.J., Irstea Publications, Migration, Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), UNIVERSITAT DE BARCELONA ESP, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), and UNIVERSITY OF NEW ENGLAND ARMIDALE AUS

Subjects
[SDE] Environmental Sciences, [SDE]Environmental Sciences
Abstract

International audience; The 20 chapters in this book synthesize the scattered information on intermittent rivers and ephemeral streams (IRES), exploring the effects of flow intermittence on geomorphology, hydrology, biogeochemistry, and ecology in these ecosystems. – Here, we distil this information into fourteen themes, most of which emphasize how intermittence and pulsed flows govern almost every physical, chemical, and ecological aspect of IRES and must be explicitly considered in conservation, restoration, and ecosystem management. – Despite substantial advances in scientific knowledge of IRES in the last two decades, major methodological, geographical/disciplinary, and conceptual gaps remain. – IRES are widespread yet undervalued ecosystems that deserve greater recognition of their services and more effective legislative protection and management in the face of global climate change and increasing human demands for water.

Published
2017

37. Integrating dispersal proxies in ecological and environmental research in the freshwater realm

Author

Heino, J. (Jani), Alahuhta, J. (Janne), Ala-Hulkko, T. (Terhi), Antikainen, H. (Harri), Bini, L. M. (Luis Mauricio), Bonada, N. (Núria), Datry, T. (Thibault), Erős, T. (Tibor), Hjort, J. (Jan), Kotavaara, O. (Ossi), Melo, A. S. (Adriano S.), Soininen, J. (Janne), Heino, J. (Jani), Alahuhta, J. (Janne), Ala-Hulkko, T. (Terhi), Antikainen, H. (Harri), Bini, L. M. (Luis Mauricio), Bonada, N. (Núria), Datry, T. (Thibault), Erős, T. (Tibor), Hjort, J. (Jan), Kotavaara, O. (Ossi), Melo, A. S. (Adriano S.), and Soininen, J. (Janne)

Abstract

Dispersal is one of the key mechanisms affecting the distribution of individuals, populations, and communities in nature. Despite advances in the study of single species, it has been notoriously difficult to account for dispersal in multispecies metacommunities, where it potentially has strong effects on community structure beyond those of local environmental conditions. Dispersal should thus be directly integrated in both basic and applied research by using proxies. Here, we review the use of proxies in the current metacommunity research, suggest new proxies, and discuss how proxies could be used in community modelling, particularly in freshwater systems. We suggest that while traditional proxies may still be useful, proxies formerly utilized in transport geography may provide useful novel insights into the structuring of biological communities in freshwater systems. We also suggest that understanding the utility of such proxies for dispersal in metacommunities is highly important for many applied fields such as freshwater bioassessment, conservation planning, and recolonization research in the context of restoration ecology. These research fields have often ignored spatial dynamics and focused mostly on local environmental conditions and changes therein. Yet, the conclusions of these applied studies may change considerably if dispersal is taken into account.

Published
2017

38. Chapter 4.1 – The biota of intermittent rivers and ephemeral streams: prokaryotes, fungi, and protozoans

Author

Datry, T., Bonada, N., Boulton, A., Romaní, A.M., Chauvet, E., Febria, C., Mora-Gómez, J., Risse-Buhl, Ute, Timoner, X., Weitere, Markus, Zeglin, L., Datry, T., Bonada, N., Boulton, A., Romaní, A.M., Chauvet, E., Febria, C., Mora-Gómez, J., Risse-Buhl, Ute, Timoner, X., Weitere, Markus, and Zeglin, L.

Abstract

Microbial diversity and function in intermittent rivers and ephemeral streams (IRES) are tightly linked to specific habitat availability and hydrological phases. The intensity and frequency of the different phases (especially drying and rewetting) affect community composition and key functions, mainly linked to biogeochemical processes. Resistance and resilience strategies are distinct among microorganism groups—bacteria, archaea, fungi, protozoans—and strongly depend on different types of microhabitat or refuge available. The biodiversity of prokaryotes in IRES is strongly affected by hydrology but microhabitat conditions and type of benthic substrate significantly affect their community composition. Fungi are very sensitive to drying but use several refuges, including the terrestrial habitat, and resistance strategies. Protozoans show a wide range of survival strategies and several species can resist harsh conditions such as anoxia in drying pools. Thus, they become especially relevant for ecosystem functions when other organisms are inhibited. This sensitivity causes “waves” of microbial functions and biodiversity to covary with hydrological phases, potentially affecting ecosystem functioning and higher trophic levels. Microbially mediated functions in IRES are perhaps the most critical to freshwater ecosystem services such as nitrogen and carbon cycling. Therefore, efforts to manage and restore IRES will depend on improved understanding of hydrological controls on microbial communities and functions across space and time.

Published
2017

39. The effects of climatic fluctuations and extreme events on running water ecosystems

Author

Woodward, G, Bonada, N, Brown, LE, Death, RG, Durance, I, Gray, C, Hladyz, S, Ledger, ME, Milner, AM, Ormerod, SJ, Thompson, RM, Pawar, S, and Natural Environment Research Council (NERC)

Subjects
Evolutionary Biology, Freshwater biology, Ecosistemes, Biologia d'aigua dolça, Biotic communities, 11 Medical And Health Sciences, Biodiversity, 06 Biological Sciences, Biodiversitat
Abstract

Most research on the effects of environmental change in freshwaters has focused on incremental changes in average conditions, rather than fluctuations or extreme events such as heatwaves, cold snaps, droughts, floods, or wildfires, which may have even more profound consequences. Such events are commonly predicted to increase in frequency, intensity, and duration with global climate change, with many systems being exposed to conditions with no recent historical precedent. We propose a mechanistic framework for predicting potential impacts of environmental fluctuations on running water ecosystems by scaling up effects of fluctuations from individuals to entire ecosystems. It requires the integration of five key components: effects of the environment on individual metabolism, metabolic and biomechanical constraints on species interactions, effects of trait mismatches between interacting species, assembly dynamics of open local food-webs, and mapping the dynamics of the meta-community onto ecosystem function. We illustrate the framework by developing a mathematical model of perturbations on dynamically assembling food webs, and highlighting where the (currently limited) empirical evidence supports these ideas across a range of spatial and temporal scales and organizational levels. For example, widely supported predictions are that rare, large species at the top of the food web, and especially those with high per capita metabolic demands, will be especially vulnerable to fluctuations, which also lead to simplifications of network structure, impaired energetic transfer efficiency, reduced resilience and top-down relative to bottom-up regulation of the food web and ecosystem processes. We conclude by identifying key questions that need to be addressed for more accurate and predictive bioassessment, and the implications for management practices in an increasingly uncertain world.

Published
2016

40. First record of Hydropsyche spiritoi Moretti, 1991 in France [Trichoptera, Hydropsychidae]

Author

Coppa, G., Bonada, N., Datry, T., Gonzalez, M., Launay, B., Le Guellec, G., Murria, C., Zamora Munoz, C., Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona (UB), Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Universidade de Santiago de Compostela [Spain] (USC ), Maison Régionale de l'Eau, and Universidad de Granada (UGR)

Subjects
INSECTE, [SDE]Environmental Sciences, insect, species assignment, DETERMINATION D'ESPECE
Abstract

International audience; Material composed of several adults and larvae of H. spiritoi were collected in the Provence-Alpes-Côte d'Azur Region (S-E France) and allowed us to complete our knowledge on the geographical distribution of this species throughout the W-Mediterranean. H. spiritoi is a new record for France. Some ecological data and morphological characters are provided.; Des collectes de Trichoptères dans la Région Provence-Alpes-Côte d'Azur, ont permis de noter pour lapremière fois la présence d'H. spiritoi en France. Ces découvertes complètent nos connaissances sur ladistribution géographique de cette espèce dans l'Ouest méditerranéen. Des éléments concernant sa déterminationet son écologie sont livrés.

Published
2016

41. A biological tool to assess flow connectivity in reference temporary streams from the Mediterranean Basin

Author

Cid, N., primary, Verkaik, I., additional, García-Roger, E.M., additional, Rieradevall, M., additional, Bonada, N., additional, Sánchez-Montoya, M.M., additional, Gómez, R., additional, Suárez, M.L., additional, Vidal-Abarca, M.R., additional, Demartini, D., additional, Buffagni, A., additional, Erba, S., additional, Karaouzas, I., additional, Skoulikidis, N., additional, and Prat, N., additional

Published
2016
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42. Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams

Author

Schiller, D., Datry, T., Corti, R., Foulquier, A., Tockner, K., Marcé, R., García‐Baquero, G., Odriozola, I., Obrador, B., Elosegi, A., Mendoza‐Lera, C., Gessner, M. O., Stubbington, R., Albariño, R., Allen, D. C., Altermatt, F., Arce, M. I., Arnon, S., Banas, D., Banegas‐Medina, A., Beller, E., Blanchette, M. L., Blanco‐Libreros, J. F., Blessing, J., Boëchat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup, K., Bruder, A., Burrows, R. M., Cancellario, T., Carlson, S. M., Cauvy‐Fraunié, S., Cid, N., Danger, M., Freitas Terra, B., Dehedin, A., De Girolamo, A. M., Campo, R., Díaz‐Villanueva, V., Duerdoth, C. P., Dyer, F., Faye, E., Febria, C., Figueroa, R., Four, B., Gafny, S., Gómez, R., Gómez‐Gener, L., Graça, M. A. S., Guareschi, S., Gücker, B., Hoppeler, F., Hwan, J. L., Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J., Martín, E. J., McIntosh, A., Meyer, E. I., Miliša, M., Mlambo, M. C., Moleón, M., Morais, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Pařil, P., Pešić, V., Piscart, C., Polášek, M., Rodríguez‐Lozano, P., Rolls, R. J., Sánchez‐Montoya, M. M., Savić, A., Shumilova, O., Steward, A., Taleb, A., Uzan, A., Vander Vorste, R., Waltham, N., Woelfle‐Erskine, C., Zak, D., Zarfl, C., and Zoppini, A.

Abstract

Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration and carbon dioxide (CO2) emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32‐fold to 66‐fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2–0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting‐drying cycles on respiration and CO2emissions in stream networks. Sediment respiration in intermittent rivers and ephemeral streams increases substantially in response to rewettingRespiration pulses are driven by sediment properties, which, in turn, are influenced by climate and catchment characteristicsEffects of wetting‐drying cycles on respiration and CO2emissions in stream networks need consideration in upscaling and modeling efforts

Published
2019
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43. Biomonitoring of human impacts in freshwater ecosystems: the good, the bad, and the ugly

Author

Friberg, Nikolai, Bonada, N., Bradley, D.C., Dunbar, M.J., Edwards, F.K., Grey, J., Hayes, R.B., Hildrew, A.G., Lamouroux, N., Trimmer, M., Woodward, G., NATIONAL ENVIRONMENTAL RESEARCH INSTITUTE DNK, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), UNIVERSITAT DE BARCELONA ESP, CENTRE FOR ECOLOGY AND HYDROLOGY GBR, UNIVERSITY OF LONDON SCHOOL OF BIOLOGICAL AND CHEMICAL SCIENCES GBR, Milieux aquatiques, écologie et pollutions (UR MALY), and Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF)

Subjects
[SDE]Environmental Sciences
Abstract

International audience; It is critical that the impacts of environmental stressors on natural systems are detected, monitored and assessed accurately in order to legislate effectively and to protect and restore ecosystems. Biomonitoring underpins much of modern resource management, especially in fresh waters, and has received significant sums of money and research effort during its development. Despite this, the incorporation of science has not been effective and the management tools developed are sometimes inappropriate and poorly designed. Much biomonitoring has developed largely in isolation from general ecological theory, despite the fact that many of its fundamental principles ultimately stem from basic concepts, such as niche theory, the habitat template and the rK continuum. Consequently, biomonitoring has not kept pace with scientific advances, which has compromised its ability to deal with emerging environmental stressors such as climate change and habitat degradation. A reconnection with its ecological roots and the incorporation of robust statistical frameworks are key to progress and meeting future challenges. The vast amount of information already collected represents a potentially valuable, and largely untapped, resource that could be used more effectively in protecting ecosystems and in advancing general ecology. Biomonitoring programmes have often accumulated valuable long-term data series, which could be useful outside the scope of the original aims. However, it is timely to assess critically existing biomonitoring approaches to help ensure future programmes operate within a sound scientific framework and cost-effectively. Investing a small proportion of available budgets to review effectiveness would pay considerable dividends. Increasing activity has been stimulated by new legislation that carries the threat of penalties for non-compliance with environmental targets, as is proposed, for example, in the EU's Water Framework Directive. If biomonitoring produces poor-quality data and has a weak scientific basis, it may lead either to unjustified burdens placed on the users of water resources, or to undetected environmental damage. We present some examples of good practice and suggest new ways to strengthen the scientific rigour that underpins biomonitoring programmes, as well as highlighting potentially rewarding new approaches and technologies that could complement existing methods.

Published
2011

45. Multi-scale assessment of macroinvertebrate richness and composition in Mediterranean-climate rivers

Author

Bonada, N., Rieradevall, M., Dallas, H., Davis, J., Day, J., Figueroa, R., Resh, V.H., Prat, N., Bonada, N., Rieradevall, M., Dallas, H., Davis, J., Day, J., Figueroa, R., Resh, V.H., and Prat, N.

Abstract

1. Similar constraints in distant, but climatically comparable, regions may be expected to yield biotic assemblages with similar attributes. Environmental factors that constrain communities at smaller scales, however, may be different between climatically similar regions. Thus, patterns observed at large scales may differ from those detected at small scales, and international comparisons should be focussed at multiple scales. 2. Mediterranean-climate regions (MCRs) are characterized by remarkable seasonal variability in precipitation and temperature. Accordingly, rivers in these regions have seasonal and predictable floods and droughts, and temporary reaches are frequent. Present in six geographical regions of the world, MCRs have similar environmental constraints and are ideal for testing intercontinental similarities between macroinvertebrate communities. 3. We examined aquatic macroinvertebrate taxon richness and composition in MCRs at three scales: regional, reach and macrohabitat. At the regional scale, the Mediterranean Basin had the highest taxon richness at family level, and southwestern Australia the lowest. Taxonomic composition showed c. 85% similarity between the northern hemisphere MCRs of California and the Mediterranean Basin, which were followed in similarity by South Africa. The two Australian MCRs (South west and South) showed a similarity to each other of about 70% whereas the Chilean fauna was the most distinct. 4. At the reach scale, taxon richness was not significantly different between permanent and temporary reaches in any MCR, whereas taxonomic composition was significantly different among northern hemisphere MCRs. At the macrohabitat scale, taxon richness was not significantly different between lotic and lentic macrohabitats within any of the MCRs, but differences in macroinvertebrate communities were found between macrohabitats when considering regions. 5. Our results show that the strength of similarity between distant but climatically si

Published
2008

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