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Articles by Thibault Datry
Scale-Dependent Biodiversity Responses to Drying and Land Use in River Metacommunities Facing Global Change
Filename Description gcb71094-sup-0001-FiguresS1-S7.pdfPDF document, 1.5 MB Figure S1: Map of the study area in southeastern France. Colors indicate different metacommunities, defined according to hydrographic zones. Circles represent non-perennial river reaches, whereas triangles represent perennial river reaches. The inset in the upper-left corner shows the location of the study area (red rectangle) within an european context.
Drying Halves Decomposition Rates in River Networks by Decreasing Decomposer Diversity
1 Introduction Rivers rank among the most biodiverse yet most threatened ecosystems globally (Dudgeon 2019). One of the most pervasive disturbances affecting fluvial ecosystems is drying. Rivers that experience drying events—that is, cessation and resumption of surface flow—are not limited to arid and semiarid areas, but widespread across all climates (Datry et al. 2023). More than half of the global river network is currently prone to such intermittent or non-perennial flow (Messager et al. 2021).
Extreme weather is transforming the world’s rivers. We need new ways to protect them
In the summer of 2022, extreme heat and unprecedented drought drove parts of the world’s third largest river, the Yangtze, to dry up. The impacts for hydropower, shipping and industry in China were severe, immediate and well-documented. Less visible were the ecological consequences for the many species that depend on the river. The Yangtze is not an exception. Around the world, rivers are no longer changing gradually.
Extreme events and river biodiversity under climate change - Nature Reviews Biodiversity
Abstract Extreme climatic events (ECEs) including floods, droughts and heatwaves are increasing in severity and frequency, fundamentally reshaping riverine ecosystems. In this Review, we synthesize global evidence of the impacts of ECEs on riverine biodiversity, revealing widespread and often compounding threats.
Une cartographie inédite des cours d’eau officiels pointe les incohérences de la réglementation
Les cours d’eau français, qui n’ont de définition officielle que depuis 2015, sont inégalement protégés d’un département à l’autre, où un même cours d’eau pourra successivement gagner ou perdre ce statut réglementaire. Des disparités qui peuvent affecter la santé des bassins versants. C’est ce que montre une récente étude qui a voulu reconstituer la carte de tous les cours d’eau officiellement reconnus dans notre pays, une démarche unique au monde. Qu’est-ce qu’un cours d’eau ?
Inconsistent Regulatory Mapping Quietly Threatens Rivers and Streams
Introduction Click to copy section linkSection link copied! Rivers and streams make up the very fabric of human societies and vice versa. Societal structures evolved from and are still entwined with river networks. (1−3) To this day, flowing waters are essential to meet basic human needs and enable people’s well-being, livelihoods, and cultures. (4−6) At the same time, rivers and streams are hybrid features of the landscape, both social and natural.
Biogeochemical and community ecology responses to the wetting of non-perennial streams - Nature Water
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Abstract Transitions between dry and wet hydrologic states are the defining characteristic of non-perennial rivers and streams, which constitute the majority of the global river network. Although past work has focused on stream drying characteristics, there has been less focus on how hydrology, ecology and biogeochemistry respond and interact during stream wetting.
By Adam Price, Amy Burgin, Erin Seybold, Sam Zipper, Michelle Busch, Annika W. Walters, Rachel Stubbington, Thibault Datry, Mathis L. Messager, Julian D. Olden, David Lytle, Ryan Burrows, George Allen, Kate Boersma, Daniel Allen, Corey Anne Krabbenhoft, Walter Kennedy Dodds, Jane Sarah Rogosch, James Christian Stegen, Jonathan Douglas Tonkin
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Nature
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Time series of freshwater macroinvertebrate abundances and site characteristics of European streams and rivers - Scientific Data
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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.
By Florian Altermatt, Gait Archambaud, Núria Bonada, Roberta Bottarin, Miguel Cañedo-Argüelles, Thibault Datry, Elvira de Eyto, Alain Dohet, Sami Domisch, Gerald Dörflinger, Knut A. Eikland, Richard Johnson, Aitor Larrañaga, Lionel L’Hoste, Armin W. Lorenz, Anthony Maire, Andrés Millán, Davis Ozolins, Petr Pařil, Marek Polášek, Ralf B. Schäfer, Longzhu Q. Shen, Rachel Stubbington, Iakovos Tziortzis
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Nature
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Effects of different hydrological conditions on the taxonomic structure and functional traits of mollusk communities in a large floodplain wetland
1 INTRODUCTION Floodplain wetlands are one of the most variable landscape features on earth, with high productivity and biodiversity, and they play a crucial role in linking rivers, lakes, and land (Chaparro et al., 2018; Knox et al., 2022). Furthermore, several anthropogenic pressures, like reclamation of land and river regulations, have interfered with the natural flow of water between rivers and floodplains in direct or indirect ways (Dong et al., 2021; Zhang, Pan, et al., 2020).
Climate change and the biodiversity of alpine ponds: Challenges and perspectives
Climate change and the biodiversity of alpine ponds: Challenges and perspectives Mots clés connectivity hydroperiod species distribution species richness water temperature connectivity hydroperiod species distribution species richness water temperature Fichier principal 2024_Lamouille-Hébert_Ecol_Evol.pdf (1.92 Mo) Télécharger le fichier Origine : Fichiers éditeurs autorisés sur une archive ouverte Licence : CC BY - Paternité
Climate change and the biodiversity of alpine ponds: Challenges and perspectives
1 INTRODUCTION Inland waters are among the most threatened biodiversity hotspots (Reid et al., 2019; Tickner et al., 2020). In addition to containing ~13% of all described species while representing less than 2% of the globe surface, they provide key ecosystem services to people and society, including provision of drinking water, regulation of climate, and food production (Reid et al., 2019; Tickner et al., 2020).
Les rivières intermittentes, des écosystèmes encore trop souvent méconnus et négligés
550 000km, c’est la longueur totale des cours d’eau en France. Rus, rivières, fleuves : l’immense majorité de la population vit à proximité d’un cours d’eau. Nous sommes nombreux à avoir été témoins d’une forte crue ou de l’assèchement soudain du cours d’eau auprès duquel nous jouions enfant. Une partie de nos rivières sont d’ailleurs dites « intermittentes » : de manière récurrente, elles cessent de s’écouler ou s’assèchent complètement.
Non-perennial segments in river networks - Nature Reviews Earth & Environment
Abstract Non-perennial river segments — those that recurrently cease to flow or frequently dry — occur in all river networks and are globally more abundant than perennial (always flowing) segments. However, research and management have historically focused on perennial river segments. In this Review, we outline how non-perennial segments are integral parts of river networks.
Science Gets Up to Speed on Dry Rivers
Australia’s third-longest river, the Darling, normally experiences periods of medium to low flow, punctuated by flood events. But vast stretches of the river in New South Wales have been bone dry for the past two summers, and in 2019 the river was dry by early spring. The lack of flows has left communities along its banks in dire straits, with many trucking in water to serve even basic domestic water requirements.
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