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1. 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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2. 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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3. 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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4. 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

5. 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

6. 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

7. 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, MO, Stubbington, R, Albarino, R, Allen, DC, Altermatt, F, Arce, M, Arnon, S, Banas, D, Banegas-Medina, A, Beller, E, Blanchette, ML, Blanco-Libreros, JF, Blessing, J, Boechat, IG, Boersma, KS, Bogan, MT, Bonada, N, Bond, NR, Brintrup, K, Bruder, A, Burrows, RM, Cancellario, T, Carlson, SM, Cauvy-Fraunie, S, Cid, N, Danger, M, de Freitas Terra, B, Dehedin, A, De Girolamo, AM, del Campo, R, Diaz-Villanueva, V, Duerdoth, CP, Dyer, F, Faye, E, Febria, C, Figueroa, R, Four, B, Gafny, S, Gomez, R, Gomez-Gener, L, Graca, MAS, Guareschi, S, Gucker, B, Hoppeler, F, Hwan, JL, Kubheka, S, Laini, A, Langhans, SD, Leigh, C, Little, CJ, Lorenz, S, Marshall, J, Martin, EJ, McIntosh, A, Meyer, E, Milisa, M, Mlambo, MC, Moleon, M, Morais, M, Negus, P, Niyogi, D, Papatheodoulou, A, Pardo, I, Paril, P, Pesic, V, Piscart, C, Polasek, M, Rodriguez-Lozano, P, Rolls, RJ, Sanchez-Montoya, MM, 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, MO, Stubbington, R, Albarino, R, Allen, DC, Altermatt, F, Arce, M, Arnon, S, Banas, D, Banegas-Medina, A, Beller, E, Blanchette, ML, Blanco-Libreros, JF, Blessing, J, Boechat, IG, Boersma, KS, Bogan, MT, Bonada, N, Bond, NR, Brintrup, K, Bruder, A, Burrows, RM, Cancellario, T, Carlson, SM, Cauvy-Fraunie, S, Cid, N, Danger, M, de Freitas Terra, B, Dehedin, A, De Girolamo, AM, del Campo, R, Diaz-Villanueva, V, Duerdoth, CP, Dyer, F, Faye, E, Febria, C, Figueroa, R, Four, B, Gafny, S, Gomez, R, Gomez-Gener, L, Graca, MAS, Guareschi, S, Gucker, B, Hoppeler, F, Hwan, JL, Kubheka, S, Laini, A, Langhans, SD, Leigh, C, Little, CJ, Lorenz, S, Marshall, J, Martin, EJ, McIntosh, A, Meyer, E, Milisa, M, Mlambo, MC, Moleon, M, Morais, M, Negus, P, Niyogi, D, Papatheodoulou, A, Pardo, I, Paril, P, Pesic, V, Piscart, C, Polasek, M, Rodriguez-Lozano, P, Rolls, RJ, Sanchez-Montoya, MM, 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

8. 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
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9. 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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11. 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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12. Le développement de la productivité de l'arachide au Sénégal

Author

Carrière De Belgarrie, R., Four, B., and Gaye, A.K.

Subjects
rendement, Politique de développement, Plan de développement, Accroissement de production, E16 - Economie de la production, Arachis hypogaea, production, Vulgarisation
Published
1963

13. 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, F., Arce, M. I., Arnon, S., Banas, D., Banegas‐Medina, A., Beller, E., Blanchette, Melanie 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., 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., Zoppini, A., 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, F., Arce, M. I., Arnon, S., Banas, D., Banegas‐Medina, A., Beller, E., Blanchette, Melanie 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., 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

von Schiller, D., Datry, T., Corti, R., Foulquier, A., Tockner, K., Marcé, R., ... Zoppini, A. (2019). Sediment respiration pulses in intermittent rivers and ephemeral streams. Global Biogeochemical Cycles, 33(10), 1251-1263. Available here

14. Unravelling large-scale patterns and drivers of biodiversity in dry rivers.

Author

Foulquier A, Datry T, Corti R, von Schiller D, Tockner K, Stubbington R, Gessner MO, Boyer F, Ohlmann M, Thuiller W, Rioux D, Miquel C, Albariño R, Allen DC, Altermatt F, Arce MI, Arnon S, Banas D, Banegas-Medina A, Beller E, Blanchette ML, Blessing J, Boëchat IG, Boersma K, Bogan M, Bonada N, Bond N, Brintrup K, Bruder A, Burrows R, Cancellario T, Canhoto C, Carlson S, Cid N, Cornut J, Danger M, de Freitas Terra B, De Girolamo AM, Del Campo R, Díaz Villanueva V, Dyer F, Elosegi A, Febria C, Figueroa Jara R, Four B, Gafny S, Gómez R, Gómez-Gener L, Guareschi S, Gücker B, Hwan J, Jones JI, Kubheka PS, Laini A, Langhans SD, Launay B, Le Goff G, Leigh C, Little C, Lorenz S, Marshall J, Martin Sanz EJ, McIntosh A, Mendoza-Lera C, Meyer EI, Miliša M, Mlambo MC, Morais M, Moya N, Negus P, Niyogi D, Pagán I, Papatheodoulou A, Pappagallo G, Pardo I, Pařil P, Pauls SU, Polášek M, Rodríguez-Lozano P, Rolls RJ, Sánchez-Montoya MM, Savić A, Shumilova O, Sridhar KR, Steward A, Taleb A, Uzan A, Valladares Y, Vander Vorste R, Waltham NJ, Zak DH, and Zoppini A

Subjects
Animals, Fungi classification, Fungi genetics, Geologic Sediments microbiology, Bacteria classification, Bacteria genetics, Invertebrates classification, DNA Barcoding, Taxonomic, Plants classification, Archaea classification, Archaea genetics, Biodiversity, Rivers microbiology
Abstract

More than half of the world's rivers dry up periodically, but our understanding of the biological communities in dry riverbeds remains limited. Specifically, the roles of dispersal, environmental filtering and biotic interactions in driving biodiversity in dry rivers are poorly understood. Here, we conduct a large-scale coordinated survey of patterns and drivers of biodiversity in dry riverbeds. We focus on eight major taxa, including microorganisms, invertebrates and plants: Algae, Archaea, Bacteria, Fungi, Protozoa, Arthropods, Nematodes and Streptophyta. We use environmental DNA metabarcoding to assess biodiversity in dry sediments collected over a 1-year period from 84 non-perennial rivers across 19 countries on four continents. Both direct factors, such as nutrient and carbon availability, and indirect factors such as climate influence the local biodiversity of most taxa. Limited resource availability and prolonged dry phases favor oligotrophic microbial taxa. Co-variation among taxa, particularly Bacteria, Fungi, Algae and Protozoa, explain more spatial variation in community composition than dispersal or environmental gradients. This finding suggests that biotic interactions or unmeasured ecological and evolutionary factors may strongly influence communities during dry phases, altering biodiversity responses to global changes., (© 2024. The Author(s).)

Published
2024
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15. Simulating rewetting events in intermittent rivers and ephemeral streams: A global analysis of leached nutrients and organic matter.

Author

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

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

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

Published
2019
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16. Catchment land use-dependent effects of barrage fishponds on the functioning of headwater streams.

Author

Four B, Arce E, Danger M, Gaillard J, Thomas M, and Banas D

Subjects
Agriculture, Animals, Aquaculture, Biodegradation, Environmental, Biomass, Fishes, Plant Leaves, Rivers, Ecosystem, Forests, Fungi, Invertebrates
Abstract

Extensive fish production systems in continental areas are often created by damming headwater streams. However, these lentic systems favour autochthonous organic matter production. As headwater stream functioning is essentially based on allochthonous organic matter (OM) supply, the presence of barrage fishponds on headwater streams might change the main food source for benthic communities. The goal of this study was thus to identify the effects of barrage fishponds on the functioning of headwater streams. To this end, we compared leaf litter breakdown (a key ecosystem function in headwater streams), their associated invertebrate communities and fungal biomass at sites upstream and downstream of five barrage fishponds in two dominant land use systems (three in forested catchments and two in agricultural catchments). We observed significant structural and functional differences between headwater stream ecosystems in agricultural catchments and those in forested catchments. Leaf litter decay was more rapid in forest streams, with a moderate, but not significant, increase in breakdown rate downstream from the barrage fishponds. In agricultural catchments, the trend was opposite with a 2-fold lower leaf litter breakdown rate at downstream sites compared to upstream sites. Breakdown rates observed at all sites were closely correlated with fungal biomass and shredder biomass. No effect of barrage fishponds were observed in this study concerning invertebrate community structure or functional feeding groups especially in agricultural landscapes. In forest streams, we observed a decrease in organic pollution (OP)-intolerant taxa at downstream sites that was correlated with an increase in OP-tolerant taxa. These results highlighted that the influence of barrage fishponds on headwater stream functioning is complex and land use dependent. It is therefore necessary to clearly understand the various mechanisms (competition for food resources, complementarities between autochthonous and allochthonous OM) that control ecosystem functioning in different contexts in order to optimize barrage fishpond management.

Published
2017
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