Search

Your search keyword '"Vander Vorste, R."' showing total 14 results
Start Over Author "Vander Vorste, R."
14 results on '"Vander Vorste, R."'

2. 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
Full Text
View/download PDF

3. 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

4. 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

5. 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
Full Text
View/download PDF

6. 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

7. Les communautés d'invertébrés à lit de gravier, rivières tressés sont très résistants à l'écoulement intermittence

Author

Vander Vorste, R., Corti, R., Sagouis, A., Datry, T., Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB), Leibniz Association, Hydrobiologie (UR HYAX), and Laboratoire d'ingénierie pour les systèmes complexes (UR LISC)

Subjects
COURS D'EAU ALLUVIAL, GRAVEL, INVERTEBRE, INTERMITTENT STREAM, ECOLOGICAL RESILIENCE, HYPORHEIC ZONE, GRAVIER, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ZONE HYPORHEIQUE, INVERTEBRATES, RESILIENCE ECOLOGIQUE, COURS D'EAU TEMPORAIRE
Abstract

International audience; In naturally disturbed systems, harsh environmental conditions act as filters on the regional species pool, restricting the number of taxa able to form a local community to those with traits promoting resistance or resilience. Thus, communities in highly disturbed ecosystems may be less sensitive to a given disturbance than those in less disturbed ecosystems. We explored this idea by examining the response of aquatic invertebrate communities to flow intermittence in gravel-bed, braided rivers (BRs). Flow intermittence is considered a major driver of communities in rivers, but its influence on communities in BRs, which are recognized as naturally highly disturbed environments, is relatively unexplored. We used a multisite Before-After–Control- Impact (BACI) design to quantify the effects of drying events of different durations (moderate: 2–3 wk, severe:1–3 mo) on invertebrate communities in 8 BRs in southeastern France. As predicted, no effects of flow intermittence were detected 1 to 4 mo after flow resumption on taxonomic richness, composition, or functional diversity of communities facing moderate drying events. Communities subjected to severe drying events were similar to those in perennial reaches as few as 19 d after flow resumption. Moreover, communities showed functional redundancy and no loss of functional diversity after drying events. These results differ from those of studies in other river systems, where persistent effects of flow intermittence on communities generally have been found, and highlight the need for cross-system comparisons that explore the effects of drying on communities. Identifying the processes (e.g., niche selection, cotolerance) and habitat features (e.g., hyporheic zone refugia) that promote community resilience in BRs will advance our understanding of how anthropogenic stressors and climate change may affect communities in freshwater ecosystems.

Published
2016
Full Text
View/download PDF

9. 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
Full Text
View/download PDF

10. 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

11. 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
Full Text
View/download PDF

12. Refuges and ecological traps: Extreme drought threatens persistence of an endangered fish in intermittent streams.

Author

Vander Vorste R, Obedzinski M, Nossaman Pierce S, Carlson SM, and Grantham TE

Subjects
Animals, Biodiversity, Fishes, Salmon, Droughts, Ecosystem
Abstract

Recent droughts raise global concern over potential biodiversity loss and mitigating impacts to vulnerable species has become a management priority. However, drought impacts on populations are difficult to predict, in part, because habitat refuges can buffer organisms from harsh environmental conditions. In a global change context, more extreme droughts may turn previously suitable habitats into ecological traps, where vulnerable species can no longer persist. Here, we explore the impacts of California's recent record-breaking drought on endangered juvenile Coho salmon. We estimated the variability of cumulative salmon survival using mark-recapture of nearly 20,000 tagged fish in intermittent stream pools during a 7-year period encompassing drought and non-drought conditions. We then determined the relative importance of physical habitat, streamflow, precipitation, landscape, and biological characteristics that may limit survival during drought. Our most striking result was an increase in the number of pools with reduced or zero survival during drought years and a coincident increase in spatial variability in survival among study reaches. In nearly half of the stream pools, salmon survival during drought was similar to mean survival of pools assessed during non-drought years, indicating some pools had remarkable resistance (ability to withstand disturbance) to extreme drought. Lower survival was most attributable to longer duration of disconnection between upstream and downstream habitats, a consequence of increasing drought severity. Our results not only suggest that many pools sustain juvenile salmon in non-drought years transition into ecological traps during drought but also highlight that some pools serve as refuges even under extreme drought conditions. Projected increases in drought severity that lead to longer droughts and greater habitat fragmentation could transform an increasing proportion of suitable habitats into ecological traps. Predicting future impacts of drought on Coho salmon and other sensitive species will require identification and protection of drought refuges and management strategies that prevent further habitat fragmentation., (© 2020 The Authors. Global Change Biology published by John Wiley & Sons Ltd.)

Published
2020
Full Text
View/download PDF

13. Protecting U.S. temporary waterways.

Author

Marshall JC, Acuña V, Allen DC, Bonada N, Boulton AJ, Carlson SM, Dahm CN, Datry T, Leigh C, Negus P, Richardson JS, Sabater S, Stevenson RJ, Steward AL, Stubbington R, Tockner K, and Vander Vorste R

Subjects
Biodiversity, United States, Conservation of Water Resources, Rivers, United States Environmental Protection Agency
Published
2018
Full Text
View/download PDF

14. Context-dependent resistance of freshwater invertebrate communities to drying.

Author

Datry T, Vander Vorste R, Goïtia E, Moya N, Campero M, Rodriguez F, Zubieta J, and Oberdorff T

Abstract

More freshwater ecosystems are drying in response to global change thereby posing serious threat to freshwater biota and functions. The production of desiccation-resistant forms is an important adaptation that helps maintain biodiversity in temporary freshwaters by buffering communities from drying, but its potential to mitigate the negative effects of drying in freshwater ecosystems could vary greatly across regions and ecosystem types. We explored this context dependency by quantifying the potential contribution of desiccation-resistance forms to invertebrate community recovery across levels of regional drying prevalence (defined as the occurrence of drying events in freshwaters in a given region) and ecosystem types (lentic, lotic) in temporary neotropical freshwaters. We first predicted that regional drying prevalence influences the selection of species with desiccation-resistant forms from the regional species pools and thus increases the ability of communities to recover from drying. Second, we predicted lentic freshwaters harbor higher proportions of species with desiccation-resistant forms compared to lotic, in response to contrasted hydrologic connectivity. To test these predictions, we used natural experiments to quantify the contribution of desiccation-resistant forms to benthic invertebrate community recovery in nine intermittent streams and six geographically isolated temporary wetlands from three Bolivian regions differing in drying prevalence. The contribution of desiccation-resistant forms to community recovery was highest where regional drying prevalence was high, suggesting the species pool was adapted to regional disturbance regimes. The contribution of desiccation-resistant forms to community recovery was lower in streams than in wetlands, emphasizing the importance of hydrologic connectivity and associated recolonization processes from in-stream refuges to recovery in lotic systems. In all regions, the majority of functional traits were present in desiccation-resistant taxa indicating this adaptation may help maintain ecosystem functions by buffering communities from the loss of functional traits. Accounting for regional context and hydrologic connectivity in community recovery processes following drying can help refine predictions of freshwater biodiversity response to global change.

Published
2017
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results