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1. 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

2. 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

3. 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

6. Towards a Structured Approach to Qualitative Modelling

Author

Bredeweg, B., Salles, P., Bouwer, A.J., Liem, J., Nuttle, T., Cioaca, E., Nakova, E, Noble, R, Caldas, A.L.R., Uzonov, Y, Varadinova, E, Zitek, A, Dreyfus, M., Jones, M., Recknagel, F, and IVI (FNWI)

Published
2006

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

Author

Welti EAR, Bowler DE, Sinclair JS, Altermatt F, Álvarez-Cabria M, Amatulli G, Angeler DG, Archambaud G, Arrate Jorrín I, Aspin T, Azpiroz I, Baker NJ, Bañares I, Barquín Ortiz J, Bodin CL, Bonacina L, Bonada N, Bottarin R, Cañedo-Argüelles M, Csabai Z, Datry T, de Eyto E, Dohet A, Domisch S, Dörflinger G, Drohan E, Eikland KA, England J, Eriksen TE, Evtimova V, Feio MJ, Ferréol M, Floury M, Forcellini M, Forio MAE, Fornaroli R, Friberg N, Fruget JF, Garcia Marquez JR, Georgieva G, Goethals P, Graça MAS, House A, Huttunen KL, Jensen TC, Johnson RK, Jones JI, Kiesel J, Larrañaga A, Leitner P, L'Hoste L, Lizée MH, Lorenz AW, Maire A, Manzanos Arnaiz JA, Mckie B, Millán A, Muotka T, Murphy JF, Ozolins D, Paavola R, Paril P, Peñas Silva FJ, Polasek M, Rasmussen J, Rubio M, Sánchez Fernández D, Sandin L, Schäfer RB, Schmidt-Kloiber A, Scotti A, Shen LQ, Skuja A, Stoll S, Straka M, Stubbington R, Timm H, Tyufekchieva VG, Tziortzis I, Uzunov Y, van der Lee GH, Vannevel R, Varadinova E, Várbíró G, Velle G, Verdonschot PFM, Verdonschot RCM, Vidinova Y, Wiberg-Larsen P, and Haase P

Subjects
Animals, Europe, Fresh Water, Population Dynamics, Water Quality, Biodiversity, Ecosystem, Invertebrates, Rivers
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., (© 2024. The Author(s).)

Published
2024
Full Text
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11. The recovery of European freshwater biodiversity has come to a halt.

Author

Haase P, Bowler DE, Baker NJ, Bonada N, Domisch S, Garcia Marquez JR, Heino J, Hering D, Jähnig SC, Schmidt-Kloiber A, Stubbington R, Altermatt F, Álvarez-Cabria M, Amatulli G, Angeler DG, Archambaud-Suard G, Jorrín IA, Aspin T, Azpiroz I, Bañares I, Ortiz JB, Bodin CL, Bonacina L, Bottarin R, Cañedo-Argüelles M, Csabai Z, Datry T, de Eyto E, Dohet A, Dörflinger G, Drohan E, Eikland KA, England J, Eriksen TE, Evtimova V, Feio MJ, Ferréol M, Floury M, Forcellini M, Forio MAE, Fornaroli R, Friberg N, Fruget JF, Georgieva G, Goethals P, Graça MAS, Graf W, House A, Huttunen KL, Jensen TC, Johnson RK, Jones JI, Kiesel J, Kuglerová L, Larrañaga A, Leitner P, L'Hoste L, Lizée MH, Lorenz AW, Maire A, Arnaiz JAM, McKie BG, Millán A, Monteith D, Muotka T, Murphy JF, Ozolins D, Paavola R, Paril P, Peñas FJ, Pilotto F, Polášek M, Rasmussen JJ, Rubio M, Sánchez-Fernández D, Sandin L, Schäfer RB, Scotti A, Shen LQ, Skuja A, Stoll S, Straka M, Timm H, Tyufekchieva VG, Tziortzis I, Uzunov Y, van der Lee GH, Vannevel R, Varadinova E, Várbíró G, Velle G, Verdonschot PFM, Verdonschot RCM, Vidinova Y, Wiberg-Larsen P, and Welti EAR

Subjects
Animals, Introduced Species trends, Europe, Human Activities, Hydrobiology, Time Factors, Crop Production, Urbanization, Global Warming, Water Pollutants analysis, Biodiversity, Fresh Water, Invertebrates classification, Invertebrates physiology, Conservation of Water Resources statistics & numerical data, Conservation of Water Resources trends, Environmental Monitoring
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., (© 2023. The Author(s).)

Published
2023
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