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Auteur Florence Mazier |
Documents disponibles écrits par cet auteur (4)
Affiner la rechercheA history of long-term human-environment interactions in the french pyrenees inferred from the pollen data / Didier Galop (2013)
est un extrait de Continuity and change in cultural adaptation to mountain environments / Ludomir R. Lozny (2013)
Titre : A history of long-term human-environment interactions in the french pyrenees inferred from the pollen data Type de document : Extrait d'ouvrage Auteurs : Didier Galop ; Damien Rius ; Carole Cugny ; Florence Mazier Année de publication : 2013 Importance : 19-30 Catégories : [LOTERRE-Biodiversité] Relation homme-environnement
[CBNPMP-Géographique] Pyrénées françaises
[CBNPMP-Thématique] Enjeux de conservation des lacs d'altitudeRésumé : Over the last decade, several research programs have been involved in studying the socioecological history of the Pyrenean Mountains using sedimentary records preserved in lakes and bogs. Their main focus was on understanding human exploitation of natural resources and its environmental consequences. Recovering these “memories” buried for thousands of years in sediments requires interdisciplinary efforts dealing with the analysis of a large number of bio-indicators. The study of those bio-indicators has become a multi-proxy process which combines the classical study of fossil pollen and spores with macro-charcoal (size >150 m m) and nonpollen palynomorphs (algae, fungal spores, etc.) data. Lien pérenne : DOI : 10.1007/978-1-4614-5702-2_3 / HAL : hal-01236311
Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=152128 Galop, Didier, Rius, Damien, Cugny, Carole, Mazier, Florence 2013 A history of long-term human-environment interactions in the french pyrenees inferred from the pollen data. In: Continuity and change in cultural adaptation to mountain environments. Springer, New York: 19-30.Documents numériques
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Chapitre 3 (2013)URLModern pollen assemblages from grazed vegetation in the western Pyrenees, France: a numerical tool for more precise reconstruction of past cultural landscapes / Florence Mazier in The holocene, 16 (1) (2006)
Titre : Modern pollen assemblages from grazed vegetation in the western Pyrenees, France: a numerical tool for more precise reconstruction of past cultural landscapes Type de document : Imprimé Auteurs : Florence Mazier ; Didier Galop ; Cécile Brun ; Alexandre Buttler Année de publication : 2006 Article en page(s) : 91-103 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Palynologie, conservation des pollens
[CBNPMP-Thématique] PastoralismeRésumé : Modern pollen assemblages from grazed vegetation in the Pyrenees Mountains (France) were studied with the aim of providing a calibrated model for reconstructing past pastoral activities. The modern analogues were selected to cover the major gradients of grazing pressure and degree of openness. The vegetation was surveyed by means of the synusial integrated method, assessing the structure and the patchiness of the pastoral phytoceonoses. A correlative model (Redundancy analysis) was devised relating 61 modern pollen spectra with 37 explanatory vegetation and land-use variables. It was shown that wooded, open grazed and nitrophilous sites are clearly separated from one another and that the model can be simplified using three relevant vegetation types as explanatory variables: dry heathland, semi-open oak forest and overgrazed community, respectively related to gradients of openness, soil richness and grazing pressure. When reconstructing past pastoral activities with fossil pollen spectra, it is important to consider scale-dependent influences of plant species. Low frequencies of well-dispersed taxa such as Artemisia, Chenopodiaceae, Plantago lanceolata and Plantago major/media must be interpreted with care since they reflect more regional, rather than local, input into the pastoral landscape. In contrast, the simultaneous occurrence of Asteroideae, Cichorioideae, Cirsium-type, Galium-type, Ranunculaceae, Stellaria-type and Potentilla-type pollen is clearly related to grazing on a local scale. Calculation of Davis indices also shows that Cichorioideae, Galium-type and Potentilla-type indicate the very local presence of the corresponding plants. These pastoral plant indicators may have a limited geographical validity, ie, mountainous regions with crystalline bedrock, which may indeed also provide the framework for the application to fossil spectra of the modern pollen/vegetation/land-use models presented here. Lien pérenne : HAL : halshs-00959347 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148582
in The holocene > 16 (1) (2006) . - 91-103Mazier, Florence, Galop, Didier, Brun, Cécile, Buttler, Alexandre 2006 Modern pollen assemblages from grazed vegetation in the western Pyrenees, France: a numerical tool for more precise reconstruction of past cultural landscapes. The holocene, 16(1): 91-103.Documents numériques
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Article (2006)URL
Titre : Palynologie et histoire des activités humaines en milieu montagnard. Bilan provisoire des recherches et nouvelles orientations méthodologiques sur le versant nord des Pyrénées Type de document : Imprimé Auteurs : Didier Galop ; Florence Mazier ; José Antonio López-Sáez ; Boris Vannière Année de publication : 2003 Article en page(s) : 159-170 Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude
[CBNPMP-Thématique] Palynologie, conservation des pollens
[CBNPMP-Géographique] PyrénéesRésumé : Dans l'étude des relations environnement / sociétés en milieu montagnard, la palynologie se positionne aujourd'hui comme une discipline incontournable offrant la possibilité d'aborder la longue durée des processus d'anthropisation. Un examen critique de l'évolution de cette discipline par rapport à la problématique de l'anthropisation peut être mené à partir de l'exemple pyrénéen. S'il ressort que les acquis sont nombreux, ils ne s'accordent pas toutefois systématiquement aux nouvelles demandes formulées par un contexte scientifique résolument orienté vers l'interdisciplinarité. La variabilité des échelles d'analyses temporelles et spatiales constitue un écueil important, mais celui-ci semble pouvoir être contourné par le développement de nouvelles approches paléoécologiques reposant sur des analyses intégrées ainsi que sur la mise en place de référentiels fonctionnels. Nous présentons ici brièvement les résultats de quelques tentatives menées sur le territoire pyrénéen dans le cadre de différents programmes de recherches. Lien pérenne : DOI : 10.3406/amime.2003.1407 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150761
in Archéologie du Midi médiéval > 21 (2003) . - 159-170Galop, Didier, Mazier, Florence, López-Sáez, José Antonio, Vannière, Boris 2003 Palynologie et histoire des activités humaines en milieu montagnard. Bilan provisoire des recherches et nouvelles orientations méthodologiques sur le versant nord des Pyrénées. Archéologie du Midi médiéval, 21: 159-170.Documents numériques
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Article (2003)URL
Titre : Recent climatic and anthropogenic imprints on lacustrine systems in the Pyrenean Mountains inferred from minerogenic and organic clastic supply (Vicdessos valley, Pyrenees, France) Type de document : Imprimé Auteurs : Anaëlle Simonneau ; Emmanuel Chapron ; Thierry Courp ; Kazuyo Tachikawa ; Gaël Le Roux (1978-) ; Sandrine Baron ; Didier Galop ; Marta Garcia ; Christian Di Giovanni ; Mikael Motellica-Heino ; Florence Mazier ; Anthony Foucher ; Thomas Houet ; Marc Desmet ; Edouard Bard Année de publication : 2013 Article en page(s) : 1764-1777 Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude
[CBNPMP-Géographique] PyrénéesRésumé : High-resolution seismic profiling has been combined with geochemical analyses of both watershed samples and five lacustrine cores retrieved from two natural lacustrine basins of glacial origin: Lake Majeur and Lake Sigriou (1630 m a.s.l. and 1995 m a.s.l., respectively, Eastern French Pyrenees). Identifying specific minerogenic and organic markers of autochthonous and allochthonous supply, data allow documenting past climatic and anthropogenic pressures. Over the past century, the lacustrine sediment of Lake Majeur has been essentially composed of algae, drastically contrasting with the natural sedimentary infill of the basin, mainly resulting from soil erosion from the mid-late Holocene. Since ad 1907, the Lake Majeur has been used for hydroelectricity production. Human-induced lake-level regulations, affecting up to 37% of the lacustrine surface, have increased by fourfold the accumulation rate of the lake and favoured water enrichment. Rubidium abundance within the lacustrine sediments of the two lakes reflects the mid-late Holocene palaeohydrology. After dam construction in ad 1907, greater quantities of rubidium found in Lake Majeur sedimentary infills indicate drier climatic periods, such as from ad 1975 to ad 1982, during which water reservoirs were particularly in demand. Inversely, before the dam was built, rubidium fluctuations were correlated with wetter conditions and hydrological events were recorded as sandy layers deposited by canyon reactivation, synchronous with European climatic deterioration phases. We notably document that the Mediaeval Climate Anomaly was interrupted by some humid periods dated c. ad 940, ad 1080, ad 1100 and ad 1250. We also date the onset of the 'Little Ice Age' c. ad 1360 and identify that this period was wetter after c. ad 1500. Lien pérenne : DOI : 10.1177/0959683613505340 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150792
in The holocene > 23 (12) (2013) . - 1764-1777Simonneau, Anaëlle, Chapron, Emmanuel, Courp, Thierry, Tachikawa, Kazuyo, Le Roux, Gaël (1978-), Baron, Sandrine, Galop, Didier, Garcia, Marta, Di Giovanni, Christian, Motellica-Heino, Mikael, Mazier, Florence, Foucher, Anthony, Houet, Thomas, Desmet, Marc, Bard, Edouard 2013 Recent climatic and anthropogenic imprints on lacustrine systems in the Pyrenean Mountains inferred from minerogenic and organic clastic supply (Vicdessos valley, Pyrenees, France). The holocene, 23(12): 1764-1777.Documents numériques
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Article (2013)URL
