A5062154198- Geology and Paleoclimatology Research
- Soil erosion and sediment transport
- Environmental DNA in Biodiversity Studies
- Geological formations and processes
- Aeolian processes and effects
- Microbial Community Ecology and Physiology
- Hydrocarbon exploration and reservoir analysis
- Landslides and related hazards
- Cryospheric studies and observations
- Geochemistry and Geologic Mapping
- Soil Carbon and Nitrogen Dynamics
- Aquatic Ecosystems and Phytoplankton Dynamics
- Climate change and permafrost
- Karst Systems and Hydrogeology
- Geological Studies and Exploration
- Agriculture and Rural Development Research
- Soil and Water Nutrient Dynamics
- Pleistocene-Era Hominins and Archaeology
- Isotope Analysis in Ecology
- Geological and Geophysical Studies Worldwide
- Groundwater and Isotope Geochemistry
- Marine and coastal ecosystems
- Archaeology and ancient environmental studies
- Plant Ecology and Soil Science
- Heavy metals in environment
Centre National de la Recherche Scientifique
2016-2025
Université Savoie Mont Blanc
2016-2025
Université Grenoble Alpes
2018-2024
Zone Atelier Moselle
2024
École Pratique des Hautes Études
2024
Centre d'Écologie Fonctionnelle et Évolutive
2024
Université de Montpellier
2024
Institut de Recherche pour le Développement
2001-2024
Université Paul-Valéry Montpellier
2024
Territoires
2012-2022
Significance A record of lake sediment spanning approximately 100 years allowed us to reconstruct the long-term succession herbicide, fungicide, and insecticide treatments in a vineyard catchment France. This pesticide deposition is consistent with historical onset banning these chemical substances by French European environmental agencies. We also present evidence effects postemergence herbicides, such as glyphosate, on soil erosion release banned remnant pesticides,...
A high-resolution sedimentological and geochemical study was performed on a 20 m long core from the alpine Lake Anterne (2063 a.s.l., NW French Alps) spanning last 10 ka. Sedimentation is mainly of minerogenic origin. The organic matter quantity (TOC%) as well its quality (hydrogen (HI) oxygen (OI) indices) both indicate progressive onset subsequent stabilization vegetation cover in catchment 9950 to 5550 cal. BP. During this phase, pedogenic process carbonate dissolution marked by decrease...
Abstract Over the last decade, an increasing number of studies have used lake sediment DNA to trace past landscape changes, agricultural activities or human presence. However, processes responsible for formation and properties might affect records via taphonomic analytical processes. It is crucial understand these ensure reliable interpretations “palaeo” studies. Here, we combined plant mammal metabarcoding analyses with sedimentological geochemical from three lake-catchment systems that are...
Paleoenvironmental studies are essential to understand biodiversity changes over long timescales and assess the relative importance of anthropogenic environmental factors. Sedimentary ancient DNA (sedaDNA) is an emerging tool in field paleoecology has proven be a complementary approach use pollen macroremains for investigating past community changes. SedaDNA-based reconstructions environments often rely on indicator taxa or expert knowledge, but quantitative ecological analyses might provide...
Rabbits have had a stronger impact on the landscape and plant communities of remote island than one century climate change.
Lake La Thuile, in the Northern French Prealps (874 m a.s.l.), provides an 18-m long sedimentary sequence spanning entire Lateglacial/Holocene period. The high-resolution multi-proxy (sedimentological, palynological, and geochemical) analysis of uppermost 6.2 reveals Holocene dynamics erosion catchment response to landscape modifications. mountain belt is at relevant altitude study past human activities, watershed sufficiently disconnected from large valleys capture a local signal. From...
Abstract Since the last glacial maximum, soil formation related to ice‐cover shrinkage has been one major sink of carbon accumulating as organic matter (SOM), a phenomenon accelerated by ongoing global warming. In recently deglacierized forelands, processes SOM accumulation, including those that control and nitrogen sequestration rates biogeochemical stability newly sequestered carbon, remain poorly understood. Here, we investigate build‐up during initial stages (up 410 years) topsoil...
Glaciers are retreating globally, and the resulting ice-free areas provide an experimental system for understanding species colonization patterns, community formation, dynamics. The last several years have seen crucial advances in our of biotic after glacier retreats, from integration methodological innovations ecological theories. Recent empirical studies demonstrated how multiple factors can speed up or slow down velocity helped scientists develop theoretical models that describe...
eDNA refers to DNA extracted from an environmental sample with the goal of identifying occurrence past or current biological communities in aquatic and terrestrial environments. However, there is currently a lack knowledge regarding soil memory effect its potential impact on lake sediment records. To investigate this issue, two contrasted sites located cultivated environments France were studied. In first site, samples collected (n = 30) plots for which crop rotation history was documented...
Abstract A major feature of the Anthropocene is drastic increase in global soil erosion. Soil erosion threatening Earth habitability not only as soils are an essential component system but also because societies depend on soils. However, proper quantification impact human activities over thousands years still lacking. This particularly crucial mountainous areas, where highest rates recorded. Here we use Lake Bourget catchment, one largest European Alps, to estimate quantitatively Based a...
Abstract Land degradation is intense in tropical regions where it causes for instance a decline soil fertility and reservoir siltation. Two fingerprinting approaches (i.e. the conventional approach based on radionuclide geochemical concentrations alternative diffuse reflectance infrared Fourier transform spectroscopy method) were conducted independently to outline sources delivering sediment river network draining into Cointzio reservoir, Mexican highlands. This study was between May October...
Varved lake sediments provide opportunities for high-resolution paleolimnological investigations that may extend monitoring surveys in order to target priority management actions under climate warming. This paper provides the synthesis of an international research program relying on >150 years-long, varved records three managed perialpine lakes Europe (Lakes Geneva, Annecy and Bourget). The dynamics dominant, local human pressures, as well ecological responses pelagic, benthic littoral...
Retreating glaciers, icons of climate change, release new potential habitats for both aquatic and terrestrial organisms. High‐elevation species are threatened by temperature increases the upward migration lowlands species. Improving our understanding successional processes after glacier retreat becomes urgent, especially in tropics, where shrinkage is particularly fast. We examined patterns invertebrates, ground beetles, plants, soil eukaryotes (algae, plants) an equatorial foreland...