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4 results on '"Lebreton, V"'

1. Late Holocene vegetation changes in relation with climate fluctuations and human activity in Languedoc (southern France).

Author

Azuara, J., Combourieu-Nebout, N., Lebreton, V., Mazier, F., Müller, S. D., and Dezileau, L.

Subjects
HOLOCENE paleobotany, HOLOCENE paleoclimatology, EFFECT of human beings on climate change, REFORESTATION, GROUND cover plants
Abstract

Holocene climate fluctuations and human activity since the Neolithic have shaped present-day Mediterranean environments. Separating anthropogenic effects from climatic impacts to better understand Mediterranean paleoenvironmental changes over the last millennia remains a challenging issue. High-resolution pollen analyses were undertaken on two cores from the Palavasian lagoon system (Hérault, southern France). These records allow reconstruction of vegetation dynamics over the last 4500 years. Results are compared with climatic, historical and archeological archives. A long-term aridification trend is highlighted during the late Holocene, and three superimposed arid events are recorded at 4600-4300, 2800-2400 and 1300-1100 cal BP. These periods of high-frequency climate variability coincide in time with the rapid climatic events observed in the Atlantic Ocean (Bond et al., 2001). From the Bronze Age (4000 cal BP) to the end of the Iron Age (around 2000 cal BP), the spread of sclerophyllous taxa and loss of forest cover result from anthropogenic impact. Classical Antiquity is characterized by a major reforestation event related to the concentration of rural activity and populations in coastal plains leading to forest recovery in the mountains. A major regional deforestation occurred at the beginning of the High Middle Ages. Around 1000 cal BP, forest cover is minimal while the cover of olive, chestnut and walnut expands in relation to increasing human influence. The present-day vegetation dominated by Mediterranean shrubland and pines has been in existence since the beginning of the 20th century. [ABSTRACT FROM AUTHOR]

Published
2015
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2. Hominin responses to environmental changes during the Middle Pleistocene in central and southern Italy.

Author

Orain, R., Lebreton, V., Ermolli, E. Russo, Sémah, A.-M., Nomade, S., Shao, Q., Bahain, J.-J., Hohenstein, U. Thun, and Peretto, C.

Subjects
PLEISTOCENE Epoch, PALEOCLIMATOLOGY, BIOTIC communities, CLIMATE change, HUMIDITY, VEGETATION & climate
Abstract

The palaeobotanical record of early Palaeolithic sites from Western Europe indicates that hominins settled in different kinds of environments. During the "mid-Pleistocene transition (MPT)", from about 1 to 0.6 Ma, the transition from 41- to 100-ka dominant climatic oscillations, occurring within a long-term cooling trend, was associated with an aridity crisis which strongly modified the ecosystems. Starting from the MPT the more favourable climate of central and southern Italy provided propitious environmental conditions for long-term human occupations even during the glacial times. In fact, the human strategy of territory occupation was certainly driven by the availabilities of resources. Prehistoric sites such as Notarchirico (ca. 680-600 ka), La Pineta (ca. 600-620 ka), Guado San Nicola (ca. 380-350 ka) or Ceprano (ca. 345-355 ka) testify to a preferential occupation of the central and southern Apennines valleys during interglacial phases, while later interglacial occupations were oriented towards the coastal plains, as attested by the numerous settlements of the Roma Basin (ca. 300 ka). Faunal remains indicate that human subsistence behaviours benefited from a diversity of exploitable ecosystems, from semi-open to closed environments. In central and southern Italy, several palynological records have already illustrated the regionaland local-scale vegetation dynamic trends. During the Middle Pleistocene climate cycles, mixed mesophytic forests developed during the interglacial periods and withdrew in response to increasing aridity during the glacial episodes. New pollen data from the Boiano Basin (Molise, Italy) attest to the evolution of vegetation and climate between MIS 13 and 9 (ca. 500 to 300 ka). In this basin the persistence of high edaphic humidity, even during the glacial phases, could have favoured the establishment of a refuge area for the arboreal flora and provided subsistence resources for the animal and hominin communities during the Middle Pleistocene. This could have constrained human groups to migrate into such a propitious area. Regarding the local climate evolution during the glacial episodes, the supposed displacement from these sites could be linked to the environmental dynamics solely due to the aridity increase, rather than directly to the global climate changes. [ABSTRACT FROM AUTHOR]

Published
2013
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3. Hominin responses to environmental changes during the Middle Pleistocene in Central and Southern Italy.

Author

Orain, R., Lebreton, V., Russo Ermolli, E., Sémah, A.-M., Nomade, S., Shao, Q., Bahain, J.-J., Hohenstein, U. Thun, and Peretto, C.

Abstract

The palaeobotanical record of early Palaeolithic sites from Western Europe indicates that hominins settled in different kinds of environments. During the ''Mid-Pleistocene Transition (MPT)'', from about 1 to 0.6 Ma, the transition from 41-ka to 100-ka dominant climatic oscillations, occurring within a long-term cooling trend, was associated with an aridity crisis which strongly modified the ecosystems. Starting from the MPT the more favorable climate of central and southern Italy provided propitious environmental conditions for long-term human occupations even during the glacial times. In fact, the human strategy of territory occupation was certainly driven by the availabilities of resources. Prehistoric sites such as Notarchirico (ca. 680-600 ka), La Pineta (ca. 600-620 ka), Gaudo San Nicola (ca. 380-350 ka) or Ceprano (ca. 345-355 ka) testify to a preferential occupation of the central and southern Apennines valleys during interglacial phases, while later interglacial occupations were oriented towards the coastal plains, as attested by the numerous settlements of the Roma basin (ca. 300 ka). Faunal remains indicate that human subsistence behaviors benefited of a diversity of exploitable ecosystems, from semi-open to closed environments. In central and southern Italy, several palynological records have already illustrated the regional and local scale vegetation dynamic trends. During the Middle Pleistocene climate cycles, mixed mesophytic forests developed during the interglacial periods and withdrew in response to increasing aridity during the glacial episodes. New pollen data from the Boiano basin (Molise, Italy), attest to the evolution of vegetation and climate between OIS 13 and 9 (ca. 500 to 300 ka). In this basin, the persistence of high edaphic humidity, even during the glacial phases, could have favored the establishment of a refuge area for the arboreal flora and provided subsistence resources for the animal and hominin communities during the Middle Pleistocene. This could have constrained human groups to migrate into such a propitious area. Regarding to the local climate evolution during the glacial episodes, the supposed displacement from these sites could be linked to the environmental dynamics solely due to the aridity increase rather than directly to the global climate changes. [ABSTRACT FROM AUTHOR]

Published
2012
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4. The Eurasian Modern Pollen Database (EMPD), version 2

Author

Juliana Atanassova, Christine M. Åkesson, Piotr Kołaczek, Marco Zanon, Kari Loe Hjelle, Lyudmila S. Shumilovskikh, Heikki Seppä, Nathalie Combourieu-Nebout, Vachel A. Carter, James Edward Schofield, Krystyna Milecka, Iria García-Moreiras, Takeshi Nakagawa, Walter Finsinger, Willy Tinner, Castor Muñoz Sobrino, Anne Birgitte Nielsen, José Antonio López-Sáez, Elena Marinova, Philipp Stojakowits, Tatiana G. Antipina, Silvia Sabariego Ruiz, Roman Abegglen, Vlasta Jankovská, Oksana G. Zanina, Mariusz Gałka, Arsenii T. Galimov, Maria Papadopoulou, Manfred Rösch, Kevin J. Edwards, Patricia L. Fall, Basil A. S. Davis, Philipp Sommer, Elissaveta Bozilova, Ulrike Herzschuh, Verushka Valsecchi, Natalia Ryabogina, Ikuko Kitaba, Elena Novenko, Michelle Leydet, Anna Pędziszewska, Nata K. Panova, Almut Mrotzek, Donatella Magri, Eleonora Clo, Isabelle Matthias, R. Scott Anderson, Tatiana Blyakharchuk, Kazimierz Tobolski, Vincent Lebreton, Leanne N. Phelps, Irina G. Gvozdeva, André F. Lotter, Nina I. Belyanina, Assunta Florenzano, William J. Fletcher, Ioan Tantau, Suzanne A.G. Leroy, Roxana Grindean, Normunds Stivrins, Elena G. Lapteva, Francisca Alba-Sánchez, J. Sakari Salonen, Tatiana I. Petrenko, Tatyana V. Sapelko, Angelica Feurdean, Anna Maria Mercuri, Yuri A. Mikishin, G Furlanetto, Susanne Jahns, Cesare Ravazzi, Helena Svobodova Svitavska, Anastasia Mavridou, Carlo Alessandro Montanari, Jose Manuel Mesa-Fernández, Sampson Panajiotidis, Ruth Beer, Stéphanie Desprat, Federico Di Rita, María J. Ramos-Román, Emna Gaceur, Joanna Święta-Musznicka, Małgorzata Latałowa, Thomas Giesecke, Olga K. Borisova, Galina Bukreeva, M. Jane Bunting, Manuel Chevalier, Achille Mauri, Maria Angela Guido, Darya A. Lopatina, César Morales-Molino, Spassimir Tonkov, Marcelina Zimny, Monika Karpińska-Kołaczek, Sergey Ivanov, Gonzalo Jiménez-Moreno, Daniele Colombaroli, Morteza Djamali, Heather S. Pardoe, Olga D. Naidina, Margarita Tsakiridou, Université de Lausanne, Swiss National Science Foundation, López Sáez, José Antonio [0000-0002-3122-2744], Institute of Earth Surface Dynamics [Lausanne], Université de Lausanne = University of Lausanne (UNIL), Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS), Charles University [Prague] (CU), Lomonosov Moscow State University (MSU), Oeschger Centre for Climate Change Research (OCCR), University of Bern, Histoire naturelle de l'Homme préhistorique (HNHP), Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS), Environnements et Paléoenvironnements OCéaniques (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Department of physical chemistry, Uppsala University, Senckenberg biodiversität und klima forschungszentrum (BIK-F), Forschungsinstitut Senckenberg (SGN), Laboratorio di Palinologia e Paleobotanica, Adam Mickiewicz University in Poznań (UAM), Department of Palynology and Climate Dynamics, Georg-August-University = Georg-August-Universität Göttingen, Alfred Wegener Institute for Polar and Marine Research (AWI), Natural History Collections, University of Bergen (UiB)-University of Bergen (UiB), A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences [Moscow] (RAS), Brandenburgisches Landesamt für Denkmalpflege und Archäologisches Landesmuseum, Universidad de Granada = University of Granada (UGR), Institute of Geoecology and Geoinformation, Department of Plant Ecology, Gdansk University, University of Gdańsk (UG), Laboratoire de Recherche en Sciences Humaines (Lares-Las), Université de Rennes 2 (UR2), Dipartimento di biologia ambientale, Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Department of Botany, Sofia University 'St. Kliment Ohridski', NASA Ames Research Center (ARC), Department of Biogeography and Palaeoecology, Institut Méditerranéen d'Ecologie et de Paléoécologie (IMEP), Université Paul Cézanne - Aix-Marseille 3-Université de Provence - Aix-Marseille 1-Avignon Université (AU)-Centre National de la Recherche Scientifique (CNRS), Lund University [Lund], Laboratoire d'Informatique, Systèmes, Traitement de l'Information et de la Connaissance (LISTIC), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), CNR-IDPA, Dipartimento di Scienze dell'Ambiente e del Territorio, Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), Department of Physics and Astronomy [Turku], University of Turku, Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Department of Geography [Riga], Софийски университет = Sofia University, University of Portsmouth, Aix Marseille Université (AMU), Avignon Université (AU), López Sáez, José Antonio, Davis, B, Chevalier, M, Sommer, P, Carter, V, Finsinger, W, Mauri, A, Phelps, L, Zanon, M, Abegglen, R, Akesson, C, Alba-Sanchez, F, Scott Anderson, R, Antipina, T, Atanassova, J, Beer, R, Belyanina, N, Blyakharchuk, T, Borisova, O, Bozilova, E, Bukreeva, G, Jane Bunting, M, Clo, E, Colombaroli, D, Combourieu-Nebout, N, Desprat, S, Di Rita, F, Djamali, M, Edwards, K, Fall, P, Feurdean, A, Fletcher, W, Florenzano, A, Furlanetto, G, Gaceur, E, Galimov, A, Galka, M, Garcia-Moreiras, I, Giesecke, T, Grindean, R, Guido, M, Gvozdeva, I, Herzschuh, U, Hjelle, K, Ivanov, S, Jahns, S, Jankovska, V, Jimenez-Moreno, G, Karpinska-Kolaczek, M, Kitaba, I, Kolaczek, P, Lapteva, E, Latalowa, M, Lebreton, V, Leroy, S, Leydet, M, Lopatina, D, Lopez-Saez, J, Lotter, A, Magri, D, Marinova, E, Matthias, I, Mavridou, A, Mercuri, A, Mesa-Fernandez, J, Mikishin, Y, Milecka, K, Montanari, C, Morales-Molino, C, Mrotzek, A, Sobrino, C, Naidina, O, Nakagawa, T, Nielsen, A, Novenko, E, Panajiotidis, S, Panova, N, Papadopoulou, M, Pardoe, H, Pedziszewska, A, Petrenko, T, Ramos-Roman, M, Ravazzi, C, Rosch, M, Ryabogina, N, Ruiz, S, Sakari Salonen, J, Sapelko, T, Schofield, J, Seppa, H, Shumilovskikh, L, Stivrins, N, Stojakowits, P, Svitavska, H, Swieta-Musznicka, J, Tantau, I, Tinner, W, Tobolski, K, Tonkov, S, Tsakiridou, M, Valsecchi, V, Zanina, O, Zimny, M, University of St Andrews. School of Geography & Sustainable Development, University of St Andrews. Environmental Change Research Group, Department of Geosciences and Geography, Université de Lausanne (UNIL), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UR226, Department of Botany, Faculty of Science, Charles University, Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Georg-August-University [Göttingen], Departamento de Estratigrafía y Paleontología, Universidad de Granada, Universidad de Granada (UGR), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Sofia University 'Sv. Kliment Ohridski', Université Paul Cézanne - Aix-Marseille 3-Centre National de la Recherche Scientifique (CNRS)-Avignon Université (AU)-Université de Provence - Aix-Marseille 1, Department of Geology, Lund University, Sölvegatan 12, SE-22362 Lund, Sweden, Università degli Studi di Milano-Bicocca [Milano] (UNIMIB), University of Helsinki, and University of Sofia

Subjects
0106 biological sciences, LAKE CONSTANCE REGION, Palynology Palaeoecology Palaeoclimatology, 010504 meteorology & atmospheric sciences, HUMAN IMPACT, recent pollen deposition, 580 Plants (Botany), medicine.disease_cause, 01 natural sciences, 2417.10 Paleobotánica, [SDV.SA.SF]Life Sciences [q-bio]/Agricultural sciences/Silviculture, forestry, ddc:550, SURFACE POLLEN, SOUTHERN NORWAY, SDG 13 - Climate Action, ComputingMilieux_MISCELLANEOUS, lcsh:Environmental sciences, SDG 15 - Life on Land, lcsh:GE1-350, 0303 health sciences, CLIMATE-CHANGE, GE, APUSENI NATURAL PARK, lcsh:QE1-996.5, Foundation (engineering), European pollen database, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, [SDV.BIBS]Life Sciences [q-bio]/Quantitative Methods [q-bio.QM], Europe, LAST GLACIAL MAXIMUM, Geography, NORTHERN IBERIAN PLATEAU, pollen, GE Environmental Sciences, 1171 Geosciences, 010506 paleontology, [SDE.MCG]Environmental Sciences/Global Changes, Earth and Planetary Sciences(all), Library science, Climate change, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, 010603 evolutionary biology, neotoma, 03 medical and health sciences, Eurasian Modern Pollen Database, 2502.05 Paleoclimatología, Pollen, medicine, SIERRA-NEVADA, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, 0105 earth and related environmental sciences, 030304 developmental biology, Botánica, HOLOCENE VEGETATION HISTORY, DAS, 15. Life on land, 2416.03 Palinología, [SDE.ES]Environmental Sciences/Environmental and Society, lcsh:Geology, [SDU]Sciences of the Universe [physics], MCP, General Earth and Planetary Sciences, [SDE.BE]Environmental Sciences/Biodiversity and Ecology
Abstract

The Eurasian (née European) Modern Pollen Database (EMPD) was established in 2013 to provide a public database of high-quality modern pollen surface samples to help support studies of past climate, land cover, and land use using fossil pollen. The EMPD is part of, and complementary to, the European Pollen Database (EPD) which contains data on fossil pollen found in Late Quaternary sedimentary archives throughout the Eurasian region. The EPD is in turn part of the rapidly growing Neotoma database, which is now the primary home for global palaeoecological data. This paper describes version 2 of the EMPD in which the number of samples held in the database has been increased by 60% from 4826 to 8134. Much of the improvement in data coverage has come from northern Asia, and the database has consequently been renamed the Eurasian Modern Pollen Database to reflect this geographical enlargement. The EMPD can be viewed online using a dedicated map-based viewer at https://empd2.github.io and downloaded in a variety of file formats at https: //doi.pangaea.de/10.1594/PANGAEA.909130 (Chevalier et al., 2019)., Swiss National Science Foundation (SNSF) 200021_169598, University of Lausanne

Published
2020

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