Articles | Volume 29, issue 23
https://doi.org/10.5194/hess-29-7073-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-29-7073-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Dec 2025
Research article |
| 08 Dec 2025
| 08 Dec 2025
Streamflow generation in a nested system of intermittent and perennial tropical streams under changing land use
Giovanny M. Mosquera
CORRESPONDING AUTHOR
Laboratorio de Ecología Acuática, Global Research and Solutions Center, Universidad San Francisco de Quito USFQ, Quito, Ecuador
Daniela Rosero-López
Laboratorio de Ecología Acuática, Global Research and Solutions Center, Universidad San Francisco de Quito USFQ, Quito, Ecuador
José Daza
Laboratorio de Ecología Acuática, Global Research and Solutions Center, Universidad San Francisco de Quito USFQ, Quito, Ecuador
Daniel Escobar-Camacho
Laboratorio de Ecología Acuática, Global Research and Solutions Center, Universidad San Francisco de Quito USFQ, Quito, Ecuador
Annika Künne
Geographic Information Science Group, Institute of Geography, Friedrich Schiller University Jena, Jena, Germany
Patricio Crespo
Departamento de Recursos Hídricos y Ciencias Ambientales & Facultad de Ingeniería, Universidad de Cuenca, Cuenca, Ecuador
Sven Kralisch
Geographic Information Science Group, Institute of Geography, Friedrich Schiller University Jena, Jena, Germany
Jordan Karubian
Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, LA, USA
Fundación para la Conservación de Los Andes Tropicales, Quito, Ecuador
Andrea C. Encalada
CORRESPONDING AUTHOR
Laboratorio de Ecología Acuática, Global Research and Solutions Center, Universidad San Francisco de Quito USFQ, Quito, Ecuador
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Louise Mimeau, Annika Künne, Alexandre Devers, Flora Branger, Sven Kralisch, Claire Lauvernet, Jean-Philippe Vidal, Núria Bonada, Zoltán Csabai, Heikki Mykrä, Petr Pařil, Luka Polović, and Thibault Datry
Hydrol. Earth Syst. Sci., 29, 1615–1636, https://doi.org/10.5194/hess-29-1615-2025, https://doi.org/10.5194/hess-29-1615-2025, 2025
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Our study projects how climate change will affect the drying of river segments and stream networks in Europe, using advanced modelling techniques to assess changes in six river networks across diverse ecoregions. We found that drying events will become more frequent and intense and will start earlier or last longer, potentially turning some river sections from perennial to intermittent. The results are valuable for river ecologists for evaluating the ecological health of river ecosystem.
Louise Mimeau, Annika Künne, Flora Branger, Sven Kralisch, Alexandre Devers, and Jean-Philippe Vidal
Hydrol. Earth Syst. Sci., 28, 851–871, https://doi.org/10.5194/hess-28-851-2024, https://doi.org/10.5194/hess-28-851-2024, 2024
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Modelling flow intermittence is essential for predicting the future evolution of drying in river networks and better understanding the ecological and socio-economic impacts. However, modelling flow intermittence is challenging, and observed data on temporary rivers are scarce. This study presents a new modelling approach for predicting flow intermittence in river networks and shows that combining different sources of observed data reduces the model uncertainty.
Santosh Nepal, Saurav Pradhananga, Narayan Kumar Shrestha, Sven Kralisch, Jayandra P. Shrestha, and Manfred Fink
Hydrol. Earth Syst. Sci., 25, 1761–1783, https://doi.org/10.5194/hess-25-1761-2021, https://doi.org/10.5194/hess-25-1761-2021, 2021
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This paper examines soil moisture drought in the central Himalayan region by applying a process-based hydrological model. Our results suggest that both the occurrence and severity of droughts have increased over the last 3 decades, especially in the winter and
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Short summary
Tropical forests supply the water needs of millions of people around the world. Hydrological intermittency, defined as the cessation of river and stream flow, reduces the ability of these forests to provide continuous flow throughout the year. However, there is a lack of knowledge about the factors that cause hydrological intermittency in tropical forests. The results reveal that geology is a key factor causing hydrological intermittency in the Ecuadorian forest of the Chocó-Darién ecoregion.
Tropical forests supply the water needs of millions of people around the world. Hydrological...
