Romain Walcker
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View article: Stereo bathymetry to monitor small seasonal agriculture water ponds in ungauged areas
Stereo bathymetry to monitor small seasonal agriculture water ponds in ungauged areas Open
Small reservoirs represent a critical water supply to farmers across semi-arid regions, but their hydrological modelling suffers from data scarcity and highly variable and localised rainfall intensities. Over 200,000 ancient rainwater harv…
View article: Interactions between vegetation and river morphodynamics. Part I: Research clarifications and challenges
Interactions between vegetation and river morphodynamics. Part I: Research clarifications and challenges Open
Rivers have an intricate relationship with the vegetation that colonizes them. Riparian plants, capable of thriving within river corridors, both respond to and influence geomorphology. Yet interactions between river morphodynamics and vege…
View article: Trait-based numerical modelling of feedbacks between river morphodynamics and riparian vegetation for sustainable river management in a changing climate
Trait-based numerical modelling of feedbacks between river morphodynamics and riparian vegetation for sustainable river management in a changing climate Open
<p>River ecosystems are spatiotemporally and intimately tied to physicochemical and biological processes, driven by strong feedbacks between riparian vegetation dynamics and hydrogeomorphic processes and fluvial landforms. Climatic a…
View article: Contribution of soil algae to the global carbon cycle
Contribution of soil algae to the global carbon cycle Open
Summary Soil photoautotrophic prokaryotes and micro‐eukaryotes – known as soil algae – are, together with heterotrophic microorganisms, a constitutive part of the microbiome in surface soils. Similar to plants, they fix atmospheric carbon …
View article: DataSheet 3 - Machine learning data sets
DataSheet 3 - Machine learning data sets Open
This data sheet contains the 10 spatially constrained data sets used to run our random forests models and predict soil algal NPP at global scale.
View article: DataSheet 1 - soil algal abundance data
DataSheet 1 - soil algal abundance data Open
This data set contains all abundance data used in the paper. More details can be found in the supplementary material of the paper.
View article: DataSheet 2 - Soil algal NPP
DataSheet 2 - Soil algal NPP Open
This data set contains the primary productivity data used in the paper to investigate soil algal NPP biogeography.
View article: Assessment of Water Quality Regulation Functions in Southwestern Europe Watersheds
Assessment of Water Quality Regulation Functions in Southwestern Europe Watersheds Open
Estimation at large scale of the water quality regulation services is still lacking. It is essential to develop methodological approaches to quantify nutrient-related functions’ distribution. The present study aims to quantify nitrate-rela…
View article: First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana
First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana Open
Bioindicators assess the mangroves ecological state according to the types of pressures but they differ with the ecosystem’s specificities. We investigated benthic meiofauna diversity and structure within the low human-impacted mangroves i…
View article: supplementary_material-meiofauna sensitivity
supplementary_material-meiofauna sensitivity Open
Supplementary materials for the following paper: Michelet C, Zeppilli D, Hubas C, Baldrighi E, Cuny P, Dirberg G, Militon C, Walcker R, Lamy D, Jézéquel R, Receveur J, Gilbert F, Houssainy AE, Dufour A, Heimbürger-Boavida L-E, Bihannic I, …
View article: supplementary_material-meiofauna sensitivity
supplementary_material-meiofauna sensitivity Open
Supplementary materials for the following paper: Michelet C, Zeppilli D, Hubas C, Baldrighi E, Cuny P, Dirberg G, Militon C, Walcker R, Lamy D, Jézéquel R, Receveur J, Gilbert F, Houssainy AE, Dufour A, Heimbürger-Boavida L-E, Bihannic I, …
View article: Mangrove‐Derived Organic and Inorganic Carbon Exchanges Between the Sinnamary Estuarine System (French Guiana, South America) and Atlantic Ocean
Mangrove‐Derived Organic and Inorganic Carbon Exchanges Between the Sinnamary Estuarine System (French Guiana, South America) and Atlantic Ocean Open
There is growing evidence that a substantial fraction of the dissolved organic and inorganic carbon (DOC and DIC) and particulate organic carbon (POC) can be exported from mangroves to the ocean. Yet our understanding of C fluxes in mangro…
View article: Towards the development of ecosystem-based indicators of mangroves functioning state in the context of the EU water framework directive
Towards the development of ecosystem-based indicators of mangroves functioning state in the context of the EU water framework directive Open
European Water Framework Directive is enforced in five tropical French Oversea Territories where mangroves are present. Developing bioindication tools to support the ecosystem-based management approach of the Directive is needed. A series …
View article: Towards the development of ecosystem-based indicators of mangrove functioning state in the context of the EU Water Framework Directive.
Towards the development of ecosystem-based indicators of mangrove functioning state in the context of the EU Water Framework Directive. Open
European Water Framework Directive is enforced in five tropical French Oversea Territories where mangroves are present. Developing bioindication tools to support the ecosystem-based management approach of the Directive is needed. A series …
View article: Drought-induced regime shift and resilience of a Sahelian ecohydrosystem
Drought-induced regime shift and resilience of a Sahelian ecohydrosystem Open
The Sahel (semi-arid fringe south of the Sahara) experienced a long and prolonged drought from the 1970s to the mid-1990s, with a few extremely severe episodes that strongly affected ecosystems and societies. Long-term observations showed …
View article: A bivariate model for estimating reciprocal causality within biogeomorphic ecosystems: The cross‐lagged panel model
A bivariate model for estimating reciprocal causality within biogeomorphic ecosystems: The cross‐lagged panel model Open
Biogeomorphic ecosystems (e.g. rivers, salt marshes, mangroves and coastal dunes) are shaped by feedbacks between geomorphology and engineer plants that occur at various spatiotemporal scales. The classical bivariate and multivariate stati…
View article: The role of mangrove in the French Guiana shrimp fishery
The role of mangrove in the French Guiana shrimp fishery Open
This paper investigates the role of mangrove as an habitat in the evolution of the French Guiana shrimp stock to explain the recent collapse of shrimp production. To achieve our aim, we use the open access fishery model developed by Barbie…
View article: Engineer pioneer plants respond to and affect geomorphic constraints similarly along water–terrestrial interfaces world‐wide
Engineer pioneer plants respond to and affect geomorphic constraints similarly along water–terrestrial interfaces world‐wide Open
Aim Within fluvial and coastal ecosystems world‐wide, flows of water, wind and sediment generate a shifting landscape mosaic composed of bare substrate and pioneer and mature vegetation successional stages. Pioneer plant species that colon…