Julie Crabot

@unileon.es

Post-doc at the Department of Biodiversity and Environmental Management, University of León
Universidad de León

Julie Crabot


                           Download Compact PDF  
https://researchid.co/jcrabot

RESEARCH, TEACHING, or OTHER INTERESTS

Ecology, Evolution, Behavior and Systematics, Agricultural and Biological Sciences, Aquatic Science, Insect Science
23

Scopus Publications

727

Scholar Citations

12

Scholar h-index

12

Scholar i10-index

Scopus Publications

  • Diatoms and macroinvertebrates show distinct metacommunity assembly patterns in temporary rivers
    Guillermo Quevedo-Ortiz, David Cunillera-Montcusí, Julie Crabot, José María Fernández-Calero, Núria Cid, et al.
    Aquatic Sciences, 2026
  • GLOBal river SALiniTy and associated ions (GlobSalt)
    Alvaro Javier Moyano-Salcedo, Theresa Piana, Julie Crabot, Ben J. Kefford, Elisabeth Berger, et al.
    Scientific Reports, 2025
    Freshwater salinization (FS) is a threat to freshwater ecosystems, but its impact remains relatively poorly understood compared to other stressors (e.g. nutrient pollution), with some regions (e.g. Asia, Africa) remaining poorly explored. To assess how pervasive this issue is globally and identify salinization hotspots, we compiled global data on river salinity and associated ions. We retrieved information from different sources, harmonized it and merged it with HydroATLAS watersheds. Our global data set (GlobSalt) features 13 parameters, including electrical conductivity (EC), major ions, and nutrients. GlobSalt contains approximately fifteen million records on a monthly scale for river stations from 1980 to 2023 from all continents except Antarctica. The global median EC was 509 ± 205 μS cm−1, with 60% of rivers falling in the range of 50 to 500 μS cm−1, which is within the salinity niche of most freshwater organisms. We found a large spatial variability in EC, with some regions such as the Mediterranean, the Midwest of the US, arid regions of Argentina and Chile and Southwestern Australia having high mean salinity values. Temporally, EC was fairly stable. GlobSalt represents a critical resource for improving our understanding of FS dynamics, identifying regions at high risk and informing management strategies.
  • Lines in the landscape
    Chelsea Clifford, Magdalena Bieroza, Stewart J. Clarke, Amy Pickard, Michael J. Stratigos, et al.
    Communications Earth and Environment, 2025
    Ditches (linear constructions which store and/or move water where humans prefer it to go), via irrigation, drainage, and power, have helped drive the development of human societies. Now, ditches and other linear channels, typically carrying water, are numerous and found on every continent. Their form varies widely with use, which includes land drainage, irrigation, transportation, and boundary marking. Ditches support and shape biogeochemical cycles, biotic communities, and human societies, at multiple spatiotemporal scales. However, ditches are frequently overlooked by researchers in many disciplines. Here, we review the largely unrecognized role that ditches play in environmental processes and human societies. The effects of ditches can be both positive (e.g., biodiversity refuges, water for food production, nutrient retention) and negative (e.g., greenhouse gas emissions, dispersal of pollutants). We call for future management to consider and enhance the multifunctional role that ditches can deliver at the landscape-scale.
  • Role of Hydrology, Aquatic Vegetation, Habitat Size and Connectivity in Shaping Food Webs in a Eutrophic Agricultural Marshland
    Camille Leclerc, Julie Crabot, Benjamin Bergerot, Olivier Gore, Gérard Lacroix, et al.
    Diversity and Distributions, 2025
    Aim Understanding food‐web responses to environmental gradients is crucial for guiding effective ecosystem management measures. This aspect remains understudied in wetlands, particularly in human‐managed marshlands, despite the fact that many environmental factors can be controlled. This study examines whether and how hydrology, aquatic vegetation, habitat size and connectivity shape food‐web structures in drainage ditches and their conservation implications. Location Marais Poitevin, the second‐largest agricultural marshland in western France (with concepts and methodologies applicable globally). Methods From 2015 to 2021, macrofauna (including amphibians, fish and macroinvertebrates) were sampled from 55 ditches across eleven hydrological blocks with distinct water management strategies. Using literature‐based trophic links, we reconstructed food webs (representing potential trophic interactions among locally co‐occurring taxa) and computed four descriptors: proportions of top predators and omnivores, connectance and the maximum trophic level. Then, we applied structural equation modelling to investigate the direct and indirect effects of environmental factors on these food‐web metrics. Results Ditches with unstable hydrology, experiencing large water level fluctuations and prolonged droughts, supported food webs with higher connectance, while the maximum trophic level remained unaffected. In contrast, wider ditches with higher water levels and complex aquatic vegetation supported food webs with longer food chains but lower connectance. Many of these effects were mediated by the proportions of top predators and omnivores, and, in fluctuating hydrological conditions, by aquatic vegetation complexity. Main Conclusions Our findings highlight the importance of maintaining key environmental conditions to support complex and diverse food webs in human‐modified ecosystems, such as in highly water‐regulated agricultural marshes. Ecosystems with food webs featuring longer trophic chains and lower connectance may be more vulnerable, as species loss can trigger cascading effects. Specifically, to sustain ecosystem integrity, conservation efforts should focus on preventing habitat contraction and simplification while mitigating hydrological fluctuations to balance food‐web stability and biodiversity.
  • River Drying Causes Local Losses and Regional Gains in Aquatic Invertebrate Metacommunity Diversity: A Cross-Continental Comparison
    Daniel Escobar‐Camacho, Julie Crabot, Rachel Stubbington, Judy England, Romain Sarremejane, et al.
    Global Change Biology, 2025
    Drying river networks include non‐perennial reaches that cease to flow or dry, and drying is becoming more prevalent with ongoing climate change. Biodiversity responses to drying have been explored mostly at local scales in a few regions, such as Europe and North America, limiting our ability to predict future global scenarios of freshwater biodiversity. Locally, drying acts as a strong environmental filter that selects for species with adaptations promoting resistance or resilience to desiccation, thus reducing aquatic α‐diversity. At the river network scale, drying generates complex mosaics of dry and wet habitats, shaping metacommunities driven by both environmental and dispersal processes. By repeatedly resetting community succession, drying can enhance β‐diversity in space and time. To investigate the transferability of these concepts across continents, we compiled and analyzed a unique dataset of 43 aquatic invertebrate metacommunities from drying river networks in Europe and South America. In Europe, α‐diversity was consistently lower in non‐perennial than perennial reaches, whereas this pattern was not evident in South America. Concomitantly, β‐diversity was higher in non‐perennial reaches than in perennial ones in Europe but not in South America. In general, β‐diversity was predominantly driven by turnover rather than nestedness. Dispersal was the main driver of metacommunity dynamics, challenging prevailing views in river science that environmental filtering is the primary process shaping aquatic metacommunities. Lastly, α‐diversity decreased as drying duration increased, but this was not consistent across Europe. Overall, drying had continent‐specific effects, suggesting limited transferability of knowledge accumulated from North America and Europe to other biogeographic regions. As climate change intensifies, river drying is increasing, and our results underscore the importance of studying its effects across different regions. The importance of dispersal also suggests that management efforts should seek to enhance connectivity between reaches to effectively monitor, restore and conserve freshwater biodiversity.
  • Environmental conditions can affect the spatiotemporal variation of invasive crayfish abundance in agricultural marshlands
    André Mauchamp, Anne Bonis, Julie Crabot, Benjamin Bergerot, Olivier Gore, et al.
    Aquatic Invasions, 2025
    Understanding the long-term trends of biological invasions and their drivers is a pivotal issue. However, it is challenging because collecting presence/abundance data of invasive species as well as environmental/biotic factors over a period of years is time-consuming and therefore such data is scarce compared to short-term studies. Here, we investigated whether environmental and biotic factors in highly regulated eutrophic marshlands (water regime, physico-chemistry, habitat features, and predatory fish biomass) successfully accounted for spatiotemporal trends in abundance of small and large red swamp crayfish (Procambarus clarkii) in drainage ditches over seven consecutive years. For this, we used length-frequency data collected during the annual peak in crayfish activity. We also explored whether variation in crayfish abundance over time was due to density-dependent effects (temporal autocorrelation). We found large variation in crayfish abundance expressed in capture per unit effort (CPUE) between ditches and for different years (by a factor of 10 and 6 for small and large individuals) but with no specific trend over time. No density-dependent effect was found in any of the ditches. While crayfish CPUE was poorly related to the water regime (in particular dryness intensity of ditches for small crayfish), it was favoured by densely vegetated banks and negatively linked to the density of surrounding ditches for the two life stages. No relationship was detected with predatory fish biomass or any of the other environmental factors studied. Controlling crayfish abundance by managing environmental conditions seems possible in some cases, but likely costly for other components of biodiversity. Trapping could be a possible strategy when populations dropped to low densities in places. Finally, further studies are needed in ecosystems covering a wider range of environmental conditions to provide a more comprehensive understanding of the long-term trend of the species.
  • River flow intermittence influence biodiversity–stability relationships across spatial scales: Implications for an uncertain future
    Andros T. Gianuca, Victor R. di Cavalcanti, Leonardo Cruz, Mathieu Floury, Julie Crabot, et al.
    Global Change Biology, 2024
    Climate change is increasing the proportion of river networks experiencing flow intermittence, which in turn reduces local diversity (i.e., α‐diversity) but enhances variation in species composition among sites (i.e., β‐diversity), with potential consequences on ecosystem stability. Indeed, the multiscale theory of stability proposes that regional stability can be attained not only by local processes but also by spatial asynchrony among sites. However, it is still unknown whether and how scale‐dependent changes in biodiversity associated with river flow intermittence influence stability across spatial scales. To elucidate this, we here focus on multiple metacommunities of French rivers experiencing contrasting levels of flow intermittence. We clearly show that the relative contribution of spatial asynchrony to regional stability was higher for metacommunities of intermittent than perennial rivers. Surprisingly, spatial asynchrony was mainly linked to asynchronous population dynamics among sites, but not to β‐diversity. This finding was robust for both truly aquatic macroinvertebrates and for taxa that disperse aerially during their adult stages, implying the need to conserve multiple sites across the landscape to attain regional stability in intermittent rivers. By contrast, metacommunities of truly aquatic macroinvertebrates inhabiting perennial rivers were mainly stabilized by local processes. Our study provides novel evidence that metacommunities of perennial and intermittent rivers are stabilized by contrasting processes operating at different spatial scales. We demonstrate that flow intermittence enhances spatial asynchrony among sites, thus resulting in a regional stabilizing effect on intermittent river networks. Considering that climate change is increasing the proportion of intermittent rivers worldwide, our results suggest that managers need to focus on the spatial dynamics of metacommunities more than on local‐scale processes to monitor, restore, and conserve freshwater biodiversity.
  • Interplay between Water Regime Components and Wet Grassland Plant Communities
    André Mauchamp, Anne Bonis, Julie Crabot, Benjamin Bergerot, Olivier Gore, et al.
    Wetlands, 2024
  • Publisher Correction: Non-perennial segments in river networks (Nature Reviews Earth & Environment, (2023), 4, 12, (815-830), 10.1038/s43017-023-00495-w)
    Thibault Datry, Andrew J. Boulton, Ken Fritz, Rachel Stubbington, Nuria Cid, et al.
    Nature Reviews Earth and Environment, 2024
  • Non-perennial segments in river networks
    Thibault Datry, Andrew J. Boulton, Ken Fritz, Rachel Stubbington, Nuria Cid, et al.
    Nature Reviews Earth and Environment, 2023
  • Do highly anthropized hydrological conditions in marshes influence fish communities according to their life-history strategies?
    Julie Crabot, Benjamin Bergerot, Anne Bonis, Olivier Gore, André Mauchamp, et al.
    River Research and Applications, 2023
  • Relationships between plant communities‘ composition and water level management in Marais poitevin marshlands: feedbacks from a 4-years long monitoring study
    Anne Bonis, André Mauchamp, Olivier Goré, Jean-Marc Paillisson, Julie Crabot, et al.
    Ecologia Mediterranea, 2023
  • How hydrology and landscape shape Odonata assemblages in marshlands crossed by ditches
    Julie Crabot, André Mauchamp, Benjamin Bergerot, Anne Bonis, Olivier Gore, et al.
    Freshwater Biology, 2022
  • Spatio-temporal patterns in degradation and restoration of gravel bars along Alpine rivers
    Romy Woellner, Thomas C. Wagner, Julie Crabot, Johannes Kollmann
    River Research and Applications, 2022
  • Efficiency of invertebrate-based bioassessment for evaluating the ecological status of streams along a gradient of flow intermittence
    Julie Crabot, Sylvain Dolédec, Maxence Forcellini, Thibault Datry
    Ecological Indicators, 2021
  • A global perspective on the functional responses of stream communities to flow intermittence
    Julie Crabot, Cedric P. Mondy, Philippe Usseglio‐Polatera, Ken M. Fritz, Paul J. Wood, et al.
    Ecography, 2021
  • Drying in newly intermittent rivers leads to higher variability of invertebrate communities
    Julie Crabot, Marek Polášek, Bertrand Launay, Petr Pařil, Thibault Datry
    Freshwater Biology, 2021
  • Assessing metacommunity processes through signatures in spatiotemporal turnover of community composition
    Franck Jabot, Fabien Laroche, François Massol, Florent Arthaud, Julie Crabot, et al.
    Ecology Letters, 2020
  • Drying determines the temporal dynamics of stream invertebrate structural and functional beta diversity
    J. Crabot, J. Heino, B. Launay, T. Datry
    Ecography, 2020
  • A metacommunity approach to improve biological assessments in highly dynamic freshwater ecosystems
    Núria Cid, Núria Bonada, Jani Heino, Miguel Cañedo-Argüelles, Julie Crabot, et al.
    Bioscience, 2020
  • An unexpected source of invertebrate community recovery in intermittent streams from a humid continental climate
    Petr Pařil, Marek Polášek, Barbora Loskotová, Michal Straka, Julie Crabot, et al.
    Freshwater Biology, 2019
  • Testing the Mantel statistic with a spatially-constrained permutation procedure
    Julie Crabot, Sylvie Clappe, Stéphane Dray, Thibault Datry
    Methods in Ecology and Evolution, 2019
  • International benchmarking: policy responses to biodiversity and climate change in OECD countries
    Rosalind Bark, Julie Crabot
    International Journal of Biodiversity Science Ecosystem Services and Management, 2016

RECENT SCHOLAR PUBLICATIONS

  • Diatoms and macroinvertebrates show distinct metacommunity assembly patterns in temporary rivers: Quevedo-Ortiz et al.
    G Quevedo-Ortiz, D Cunillera-Montcusí, J Crabot, JM Fernández-Calero, ...
    Aquatic Sciences 88 (1), 18 , 2026
    2026
  • Role of Hydrology, Aquatic Vegetation, Habitat Size and Connectivity in Shaping Food Webs in a Eutrophic Agricultural Marshland
    C Leclerc, J Crabot, B Bergerot, O Gore, G Lacroix, A Bonis, J Paillisson
    Diversity and Distributions 31 (9), e70077 , 2025
    2025
  • Lines in the landscape
    C Clifford, M Bieroza, SJ Clarke, A Pickard, MJ Stratigos, MJ Hill, ...
    Communications Earth & Environment 6 (1), 693 , 2025
    2025
    Citations: 9
  • GLOBal river SALiniTy and associated ions (GlobSalt)
    AJ Moyano-Salcedo, T Piana, J Crabot, BJ Kefford, E Berger, SE Arnott, ...
    Scientific reports 15 (1), 18701 , 2025
    2025
    Citations: 6
  • Roadmap for identifying priority areas to monitor the effects of climate change on European rivers
    J Crabot, J Aroviita, H Bayat, A Boggero, N Bonada, T Datry, S Domisch, ...
    EGU General Assembly Conference Abstracts, EGU25-6250 , 2025
    2025
  • River Drying Causes Local Losses and Regional Gains in Aquatic Invertebrate Metacommunity Diversity: A Cross‐Continental Comparison
    D Escobar‐Camacho, J Crabot, R Stubbington, J England, ...
    Global Change Biology 31 (2), e70068 , 2025
    2025
    Citations: 6
  • Environmental conditions can affect the spatiotemporal variation of invasive crayfish abundance in agricultural marshlands
    A Mauchamp, A Bonis, J Crabot, B Bergerot, O Gore, JM Paillisson
    Aquatic Invasions 20 (3), 335-353 , 2025
    2025
  • Preparing European freshwaters for a saltier future
    AM CANEDO, M BEKLIOGLU, J CRABOT, D CUNILLERA-MONTCUSI, ...
    2025
  • How environmental variables shape wetland food webs
    C Leclerc, J Crabot, B Bergerot, O Gore, A Bonis, JM Paillisson
    International Congress in Ecology & Evolution-SFE² , 2024
    2024
  • River flow intermittence influence biodiversity–stability relationships across spatial scales: Implications for an uncertain future
    AT Gianuca, VR di Cavalcanti, L Cruz, M Floury, J Crabot, L Valette, ...
    Global change biology 30 (8), e17457 , 2024
    2024
    Citations: 20
  • Interplay between water regime components and wet grassland plant communities
    A Mauchamp, A Bonis, J Crabot, B Bergerot, O Gore, JM Paillisson
    Wetlands 44 (5), 50 , 2024
    2024
    Citations: 8
  • [Dataset] River flow intermittence influence biodiversity-stability relationships across spatial scales: Implications for an uncertain future
    AT Gianuca, VR di Cavalcanti, L Cruz, M Floury, J Crabot, L Valette, ...
    2024
  • Non-perennial segments in river networks
    T Datry, AJ Boulton, K Fritz, R Stubbington, N Cid, J Crabot, K Tockner
    Nature Reviews Earth & Environment 4 (12), 815-830 , 2023
    2023
    Citations: 67
  • Do highly anthropized hydrological conditions in marshes influence fish communities according to their life‐history strategies?
    J Crabot, B Bergerot, A Bonis, O Gore, A Mauchamp, JM Paillisson
    River Research and Applications 39 (8), 1551-1577 , 2023
    2023
    Citations: 2
  • Effets du régime hydrique sur les communautés végétales des prairies humides=> quels enseignements pour la gestion de ces habitats?
    A Bonis, A Mauchamp, J Crabot, O Gore, JM Paillisson, B Bergerot
    2023
  • Relations entre la gestion des niveaux d’eau et la composition spécifique de la végétation prairiale dans le Marais poitevin: retour d’expérience de quatre années de suivi …
    A Bonis, A Mauchamp, O Goré, JM Paillisson, J Crabot, B Bergerot
    Ecologia Mediterranea 49 (2), 75-90 , 2023
    2023
  • How hydrology and landscape shape Odonata assemblages in marshlands crossed by ditches
    J Crabot, A Mauchamp, B Bergerot, A Bonis, O Gore, N Rossignol, ...
    Freshwater Biology 67 (7), 1228-1241 , 2022
    2022
    Citations: 18
  • Spatio‐temporal patterns in degradation and restoration of gravel bars along Alpine rivers
    R Woellner, TC Wagner, J Crabot, J Kollmann
    River Research and Applications 38 (4), 738-756 , 2022
    2022
    Citations: 21
  • Does hydrology influence fish communities in canals of reclaimed marshes?
    J Crabot, A Mauchamp, B Bergerot, A Bonis, O Gore, JM Paillisson
    2022
  • Efficiency of invertebrate-based bioassessment for evaluating the ecological status of streams along a gradient of flow intermittence
    J Crabot, S Dolédec, M Forcellini, T Datry
    Ecological Indicators 133, 108440 , 2021
    2021
    Citations: 18

MOST CITED SCHOLAR PUBLICATIONS

  • Drying determines the temporal dynamics of stream invertebrate structural and functional beta diversity
    J Crabot, J Heino, B Launay, T Datry
    Ecography 43 (4), 620-635 , 2020
    2020
    Citations: 116
  • A metacommunity approach to improve biological assessments in highly dynamic freshwater ecosystems
    N Cid, N Bonada, J Heino, M Cañedo-Argüelles, J Crabot, R Sarremejane, ...
    BioScience 70 (5), 427-438 , 2020
    2020
    Citations: 87
  • Testing the Mantel statistic with a spatially‐constrained permutation procedure
    J Crabot, S Clappe, S Dray, T Datry
    Methods in Ecology and Evolution 10 (4), 532-540 , 2019
    2019
    Citations: 87
  • Assessing metacommunity processes through signatures in spatiotemporal turnover of community composition
    F Jabot, F Laroche, F Massol, F Arthaud, J Crabot, M Dubart, S Blanchet, ...
    Ecology letters 23 (9), 1330-1339 , 2020
    2020
    Citations: 75
  • A global perspective on the functional responses of stream communities to flow intermittence
    J Crabot, CP Mondy, P Usseglio‐Polatera, KM Fritz, PJ Wood, ...
    Ecography 44 (10), 1511-1523 , 2021
    2021
    Citations: 70
  • Non-perennial segments in river networks
    T Datry, AJ Boulton, K Fritz, R Stubbington, N Cid, J Crabot, K Tockner
    Nature Reviews Earth & Environment 4 (12), 815-830 , 2023
    2023
    Citations: 67
  • Drying in newly intermittent rivers leads to higher variability of invertebrate communities
    J Crabot, M Polášek, B Launay, P Pařil, T Datry
    Freshwater Biology 66 (4), 730-744 , 2021
    2021
    Citations: 66
  • An unexpected source of invertebrate community recovery in intermittent streams from a humid continental climate
    P Pařil, M Polášek, B Loskotová, M Straka, J Crabot, T Datry
    Freshwater Biology 64 (11), 1971-1983 , 2019
    2019
    Citations: 46
  • Spatio‐temporal patterns in degradation and restoration of gravel bars along Alpine rivers
    R Woellner, TC Wagner, J Crabot, J Kollmann
    River Research and Applications 38 (4), 738-756 , 2022
    2022
    Citations: 21
  • River flow intermittence influence biodiversity–stability relationships across spatial scales: Implications for an uncertain future
    AT Gianuca, VR di Cavalcanti, L Cruz, M Floury, J Crabot, L Valette, ...
    Global change biology 30 (8), e17457 , 2024
    2024
    Citations: 20
  • How hydrology and landscape shape Odonata assemblages in marshlands crossed by ditches
    J Crabot, A Mauchamp, B Bergerot, A Bonis, O Gore, N Rossignol, ...
    Freshwater Biology 67 (7), 1228-1241 , 2022
    2022
    Citations: 18
  • Efficiency of invertebrate-based bioassessment for evaluating the ecological status of streams along a gradient of flow intermittence
    J Crabot, S Dolédec, M Forcellini, T Datry
    Ecological Indicators 133, 108440 , 2021
    2021
    Citations: 18
  • Lines in the landscape
    C Clifford, M Bieroza, SJ Clarke, A Pickard, MJ Stratigos, MJ Hill, ...
    Communications Earth & Environment 6 (1), 693 , 2025
    2025
    Citations: 9
  • Interplay between water regime components and wet grassland plant communities
    A Mauchamp, A Bonis, J Crabot, B Bergerot, O Gore, JM Paillisson
    Wetlands 44 (5), 50 , 2024
    2024
    Citations: 8
  • GLOBal river SALiniTy and associated ions (GlobSalt)
    AJ Moyano-Salcedo, T Piana, J Crabot, BJ Kefford, E Berger, SE Arnott, ...
    Scientific reports 15 (1), 18701 , 2025
    2025
    Citations: 6
  • River Drying Causes Local Losses and Regional Gains in Aquatic Invertebrate Metacommunity Diversity: A Cross‐Continental Comparison
    D Escobar‐Camacho, J Crabot, R Stubbington, J England, ...
    Global Change Biology 31 (2), e70068 , 2025
    2025
    Citations: 6
  • International benchmarking: policy responses to biodiversity and climate change in OECD countries
    R Bark, J Crabot
    International Journal of Biodiversity Science, Ecosystem Services … , 2016
    2016
    Citations: 5
  • Do highly anthropized hydrological conditions in marshes influence fish communities according to their life‐history strategies?
    J Crabot, B Bergerot, A Bonis, O Gore, A Mauchamp, JM Paillisson
    River Research and Applications 39 (8), 1551-1577 , 2023
    2023
    Citations: 2
  • Diatoms and macroinvertebrates show distinct metacommunity assembly patterns in temporary rivers: Quevedo-Ortiz et al.
    G Quevedo-Ortiz, D Cunillera-Montcusí, J Crabot, JM Fernández-Calero, ...
    Aquatic Sciences 88 (1), 18 , 2026
    2026
  • Role of Hydrology, Aquatic Vegetation, Habitat Size and Connectivity in Shaping Food Webs in a Eutrophic Agricultural Marshland
    C Leclerc, J Crabot, B Bergerot, O Gore, G Lacroix, A Bonis, J Paillisson
    Diversity and Distributions 31 (9), e70077 , 2025
    2025