A5006987142- Geology and Paleoclimatology Research
- Pleistocene-Era Hominins and Archaeology
- Geological formations and processes
- Marine and environmental studies
- Archaeology and ancient environmental studies
- Isotope Analysis in Ecology
- Aeolian processes and effects
- Hydrology and Sediment Transport Processes
- Geological and Geophysical Studies Worldwide
- Maritime and Coastal Archaeology
- Evolution and Paleontology Studies
- Coastal wetland ecosystem dynamics
- Fossil Insects in Amber
- Freshwater macroinvertebrate diversity and ecology
- Plant Ecology and Soil Science
- Archaeology and Historical Studies
- Invertebrate Taxonomy and Ecology
- Ecology and Vegetation Dynamics Studies
- Tree-ring climate responses
- Eurasian Exchange Networks
- Plant and Fungal Interactions Research
- Marine Biology and Ecology Research
- Water management and technologies
- Rangeland Management and Livestock Ecology
- Diatoms and Algae Research
Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale
2012-2025
Aix-Marseille Université
2012-2025
Institut de Recherche pour le Développement
2015-2021
Centre National de la Recherche Scientifique
2007-2021
Université d'Avignon et des Pays de Vaucluse
2019
Laboratoire Méditerranéen de Préhistoire Europe Afrique
2006-2009
Université de Tours
2007
The effects of nutrient enrichment stream water on epilithic chironomid larval assemblages were examined during spring in a Mediterranean catchment. Three reaches that differed degree selected for comparison. Water chemistry, epilithon biomass (as ash-free dry mass [AFDM]), algal chlorophyll [chl a]), biovolumes, and composition analyzed to determine their association with density taxonomic chironomids. Kendall's τ coefficient rank correlations canonical correlation analysis used evaluate...
A 1.70 m core extracted from the Lac des Lauzons, Haut Champsaur, French Alps, at 2180 altitude, provided a detailed Holocene record of beetles, pollen and plant macrofossils, enabling reconstruction local palaeoenvironmental changes during last 10 000 years. After an early phase colonization by plants insects, corresponding to Lateglacial interstadial, long relative stability ecosystems (at least in vicinity lake) is recorded. Strikingly, there no evidence beetle macrofossils that treeline...
To date, Holocene palaeoecological signatures on the Northwestern coast of France have not been thoroughly investigated. In this study, environmental changes related to both climate processes and human disturbances were reconstructed over last 7000 cal. yr BP, based pollen chironomid assemblages from four coastal cores retrieved in Western Brittany (Porsmilin beach, NW France). Pollen records show an response millennial- centennial-scale changes. During mid-Holocene (until around 4200 BP),...
ABSTRACT Chironomid head capsules preserved in lake sediments were used to reconstruct 8200 years of summer temperatures the boreal forest north‐eastern Canada. Two training sets derived from Canadian and Eastern transfer functions. Both models reconstructed similar climate patterns, but model provided generally 2–3 °C lower than model. Three main thermal changes inferred by chironomids were: (i) Holocene Thermal Maximum, which occurred between 8 5k cal a BP, with higher today's, maximum...
With respect to others European oceanic facades, the Holocene relative sea-level (RSL) changes along French Atlantic coasts have received relatively little attention. Even if it some attention for geophysical modelling (Van de Plassche, 1991; Lambeck, 1997; Leorri et al., 2012), only two field-based studies really dealt with this subject in Western Brittany, agreeing on an oscillatory RSL pattern a conspicuous pluri-metre negative variation occurring around 3000 BP (Morzadec-Kerfourn, 1974;...
Lateglacial to Holocene subfossil chironomids from the St-Omer basin at St-Momelin (northern France) were analysed. At end of Lateglacial, stratigraphic and chironomid sequences indicate a shallow, oligotrophic slow-flowing freshwater stream, with abundant aquatic macrophytic vegetation. Cold-water adapted taxa cold climate. During early Holocene, about 9500 7700 conventional radiocarbon yr BP, climate improvement is marked by an increase in warm-water decrease cold-water fauna. However,...
Palustrine carbonates are frequently found with active and dried karstic springs in the foothills of mountains bordering Persepolis Basin, southwest Iran. A combination geological conditions favours their formation, including (i) presence limestone aquifers limbs anticlines cut through by fault systems; (ii) very gentle slopes from spring resurgence point towards centre alluvial plain, creating a flat waterlogged area; (iii) semiarid climate marked precipitation seasonality or significant...
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not.The documents may come from teaching institutions in France abroad, public private centers.L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de scientifiques niveau recherche, publiés ou non, émanant des établissements d'enseignement recherche français étrangers, laboratoires publics privés.
In Northern Dobrogea, north of the Dunavăţ promontory, Roman fortress Halmyris was founded in late 1st century AD on a Getic settlement dating to middle millennium BC, probably associated with Greek emporium Classical and Hellenistic periods. At time foundation Halmyris, Danube delta had already prograded several kilometres east leading progressive retreat sea formation deltaic plain characterised by numerous lakes river channels. Here, we present results multiproxy study combining...
We evaluated the skills of different palaeofire reconstruction techniques to reconstruct fire history a boreal landscape (Russian Karelia) affected by surface fires. The analysis dated lacustrine sediments from two nearby lakes was compared with independent dendrochronological dating scars, methods which have rarely been used in context sediment sub-sampling volumes (1 and 3.5 cm 3 , wet volumes) three calculating Charcoal Accumulation Rate histories: CHAR number, charcoal area estimated...