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François Betard

François Betard
Université Paris Cité · Department of Geography

PhD (2007) HDR (2017)

About

133
Publications
33,173
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813
Citations
Citations since 2016
64 Research Items
616 Citations
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
Introduction
François Betard currently works at the Pôle de Recherche pour l'Organisation et la Diffusion de l'Information Géographique (PRODIG) UMR 8586, Université Paris Cité, France. He does research in Physical Geography and Environmental Sciences, with a special focus on Geodiversity/Geoheritage and on Geodiversity-Biodiversity relationships.
Education
September 2003 - December 2007
Université Paris-Sorbonne
Field of study
  • Geography, speciality: Geomorphology

Publications

Publications (133)
Article
Full-text available
As a parallel to the “biodiversity hotspot” concept used in conservation biology, “geodiversity hotspots” can be defined as geographic areas that harbor very high levels of geodiversity while being threatened by human activities. Identifying geodiversity hotspots may offer a powerful way to set geoconservation priorities, but numerical methods inte...
Article
Insects are the largest and most diverse group of living organisms on Earth, playing a critical but underestimated role as agents of geomorphic change. Burrowing insects create micro-scale landforms such as subterranean tunnels and surface mounds and, by this way, exert an influence on hydrology, soil erosion and sediment transfer at a wider landsc...
Article
As operational concept, geodiversity implies a measurement and its application narrowed to a given spatial area, allowing the identification of clusters for prioritization and planning purposes. This study proposes a first geodiversity index assessment for French Guiana, a French Oversea territory located within the Guiana Shield (South America). A...
Article
Full-text available
An automatic method of landform mapping applicable to large continental areas is presented, based on 30-meter SRTM (Shuttle Radar Topography Mission) data and combining texture analysis using Fourier 2D periodograms (FOTO method) with a set of morphometric variables. This integrated strategy was applied to the whole Congo Basin and adjacent regions...
Conference Paper
Le Canal Louis XIV, ou Canal de l’Eure, est un ouvrage hydraulique inachevé (1685-1694) qui était destiné à compléter l’alimentation des fontaines et jets d’eau du château de Versailles. Initialement projeté sur une longueur totale de 80 km, ce canal devait correspondre à une dérivation des eaux de l’Eure près de Pontgouin, à l’ouest de Chartres. V...
Poster
Full-text available
Located in the western part of the Paris Basin (France), the Eure catchment is a rather unexplored area in the palaeoenvironmental, (geo)archaeological and historical field, especially in its median section. Actually, the latter status, which is predominantly agricultural, gives rise to very few spatial planning projects and as a result to very few...
Conference Paper
Full-text available
Insects are the largest and most diverse group of living organisms on Earth, playing a critical but underestimated role as agents of geomorphic change. Burrowing insects create micro-scale landforms such as subterranean tunnels and surface mounds and, by this way, have a substantial impact on hydrology, soil erosion and sediment transfer at a wider...
Conference Paper
Full-text available
Anthills and termite mounds are prominent features in many geomorphological landscapes of temperate and tropical geosystems. They individually constitute small-scale landforms (up to 10 m high for the tallest termite mounds) and their spatial assemblage can reach very high densities (up to 2,500 mounds per hectare for the yellow meadow ant Lasius f...
Book
Full-text available
Poumon vert situé au sud de Paris, le massif de Rambouillet et la vallée de Chevreuse comportent une riche diversité de paysages naturels et culturels qui reflètent la géologie de ce territoire. Les témoins précieux que constituent les roches (grès, sables, meulières, calcaires) et les fossiles qu'ils contiennent, visibles à l'affleurement ou dans...
Technical Report
Full-text available
Après deux premiers rapports publiés en 2020 et 2021, ce rapport 2022 présente brièvement les résultats de la troisième année du suivi des fourmilières de Formica rufa sur l’Espace Naturel Sensible du Bois des Jarries (Saint-Mars-la-Réorthe – 85). Les résultats des mesures morphométriques sont comparés à ceux des années précédentes et permettent de...
Conference Paper
Full-text available
Built at the end of the 17th century (1685-1694), the French Royal Canal Louis XIV is an unfinished hydraulic structure for supplying water to the fountains of the Palace of Versailles, SW of Paris. To divert the waters from the Eure River, the projected 80-km long canal has been excavated on a maximum depth of 2.60 m and a bottom width of 4.90 m,...
Chapter
Après avoir été au cœur de la géographie française durant toute la première moitié du XXe siècle, la géomorphologie s'est profondément renouvelée en même temps que la discipline géographique, entre les années 1970 et 1990, avec l’apparition d’une géomorphologie dynamique et quantitative de plus en plus appliquée. Cette tendance s’est affirmée et re...
Conference Paper
Inscrite au sein de la partie occidentale du Bassin parisien, la vallée de l’Eure est un secteur encore assez peu étudié sur le plan paléoenvironnemental, (géo)archéologique et historique, notamment sa portion médiane. Son statut majoritairement agricole, qui ne donne lieu qu’à très peu de projets d’aménagement et par conséquent d’opérations archéo...
Conference Paper
Full-text available
As operational concept, geodiversity implies a measurement and its application narrowed to a given spatial area. However, such concept is often integrated to support planning perspectives that focus mostly on geoconservation. Furthermore, diversity alone might not account for the contribution of abiotic and interfacial resources to socio-ecological...
Conference Paper
Full-text available
Depuis l’introduction du concept de « géoarchéosite » par E. Fouache & M. Rasse en 2009, les études de cas mobilisant la notion de « patrimoine géoarchéologique » se sont multipliées dans la littérature scientifique récente. Toutefois, les directives méthodologiques pour inventorier et évaluer une série de géoarchéosites à des fins de conservation...
Chapter
Full-text available
La présente fiche porte sur une démarche d’inventaire du patrimoine géoarchéologique dans la vallée moyenne de l’Eure qui s’inscrit aujourd’hui à l’interface des départements de l’Eure (27), de l’Eure-et-Loir (28) et des Yvelines (78). Vallée encore très rurale, elle offre un riche patrimoine géoarchéologique qui demeure paradoxalement méconnu. La...
Chapter
La fiche expose une démarche d’inventaire et d’évaluation du géopatrimoine sur le territoire du Parc Naturel Régional (PNR) de la Haute Vallée de Chevreuse, débouchant sur une cartographie des géosites et de leur niveau d’intérêt patrimonial évalué selon différentes valeurs (scientifique, écologique, esthétique, culturelle). Les résultats de l’inve...
Conference Paper
Inscrite au sein du Bassin parisien, la vallée de l’Eure reste un secteur encore assez peu étudié sur le plan archéologique et historique (notamment sa section médiane), propice à engager une réflexion sur les moyens à mettre en œuvre en termes d’efficacité et de pertinence pour aborder l’étude des dynamiques de peuplement et de l’organisation spat...
Technical Report
Full-text available
Après un premier rapport détaillé correspondant à l’année de lancement de l’étude, ce rapport 2021 présente brièvement les résultats de la deuxième année du suivi des fourmilières de Formica rufa sur l’Espace Naturel Sensible du Bois des Jarries (Saint-Mars-la-Réorthe – 85). Les résultats des mesures morphométriques sont comparés à ceux obtenus en...
Article
In the last decade, detailed geomorphological analyses of northeast Brazil led the authors to publish a model of landscape development in which long-term landform evolution was driven by regional swell-like uplift post-dating Early Cretaceous intracontinental rifting and the formation of the Atlantic passive margin in Aptian times. The post-Cenoman...
Conference Paper
Full-text available
The concept of “geoarchaeosite” has been introduced by Fouache & Rasse (2009) to identify archaeological sites located on a geomorphosite. In this work, we propose to use the expression in a larger sense as a contraction of geoarchaeological sites, i.e. sites of particular relevance for the understanding of past human-environment interactions. In o...
Conference Paper
Full-text available
Zoogeomorphosites can be defined as geomorphological sites of special interest for animal biodiversity and conservation. They appear as ideal places for linking geoheritage and biodiversity heritage because of the reciprocal effects and interactions between landforms and animals. On one hand, geomorphodiversity exerts an influence on animal biodive...
Article
The Cook Ice Cap (CIC) on the sub-Antarctic Kerguelen Islands recently experienced extremely negative surface mass balance. Further deglaciation could have important impacts on endemic and invasive fauna and flora. To put this exceptional glacier evolution into a multi-centennial-scale context, we refined the evolution of the CIC over the last mill...
Article
Full-text available
Within the Orthoptera order, the Tetrigids, also called groundhoppers, represent a family of small geophilic locusts displaying a level of knowledge generally lower than that of other families of grasshoppers and crickets. Based on an extensive biogeographic survey, this article proposes an updated synthesis on the knowledge and distribution of Tet...
Technical Report
Full-text available
A protocol and first results about the tracking of myrmecological populations of Formica rufa on the Natural Protected Area of Bois-des-Jarries (Vendée, NW France).
Chapter
Jusqu'à récemment, la conception sociale de la nature a été souvent restreinte aux seuls éléments vivants (faune et flore) et à leurs habitats naturels, aussi bien dans les politiques publiques environnementales que dans les perceptions et les représentations culturelles. Pendant longtemps, la notion de patrimoine naturel a elle-même été exclusivem...
Article
Full-text available
Located in the western part of the Paris Basin, the Eure catchment is marked by a several thousand years old human occupation. At the interface between several cultural groups since the Neolithic period (Gord, Artenac and Brittany), the Eure valley is a key archeological area for performing geoarchaeological investigations. The aim of this multisca...
Conference Paper
L’identification récente de paléochenaux dans la plaine alluviale de l’Eure moyenne, à proximité immédiate de vestiges d’un sanctuaire d’époque romaine (lieu-dit « Bellevue », commune de Garennes-sur-Eure), offre des éléments nouveaux pour replacer ce site archéologique dans son contexte paléoenvironnemental. Dans le cadre du PCR « Vallée de l’Eure...
Article
Full-text available
Geodiversity -i.e., the abiotic equivalent of biodiversity- has gained international recognition and usage for more than two decades in the field of geosciences. It now has the theoretical foundations and practical applications of a new paradigm underlying strategies of geoconservation. However, geodiversity has rarely been considered in the contex...
Article
Full-text available
A quantitative mapping of Geodiversity of UNESCO Araripe Geopark (GA) is presented using the methodology proposed by Bétard (2017). The data aquisition method was presented in detail by Carvalho-Neta et al (2018), that first conducted to a qualitative mapping of geopark geodiversity. The cartography was generated from preexisting databases, with sc...
Article
Full-text available
Depuis la fin des années 1990, la nature abiotique (ou géodiversité) fait l'objet d'une reconnaissance internationale, scientifique et institutionnelle, qui entraîne un intérêt croissant de différentes disciplines. D'abord définie dans la sphère des géosciences, la géodiversité est aussi devenue un objet de recherche géographique. Pourtant, il semb...
Article
Full-text available
Acting as efficient earth‐movers, soldiers can be viewed as significant geomorphological drivers of landscape change when replaced in the recent debates on Anthropocene Geomorphology. “Polemoforms”, generated by the military activities, correspond to a set of human‐made landforms of various sizes and geometries. They are particularly common on the...
Article
Full-text available
Une nouvelle synusie orthoptérique - le Mecostetho parapleuri-Paracinemetum bisignatae nov. - est décrite dans le Marais poitevin, une des grandes zones humides de la façade atlantique française. Relevant de la nouvelle division Stethophymea grossi Defaut 2016, cette synusie occupe plus spécifiquement des prairies inondables par crue de débordement...
Conference Paper
Full-text available
A mapping of the different Geodiversity components of Araripe Geopark is presented. The mapping, guided by the definition of geodiversity of Gray (2013), is a cartographic representation of the geological, geomorphological, pedological and hydrological diversities. The different maps were generated from pre-existing databases, with variable scales....
Book
Forgé sur le modèle de biodiversité, le concept de géodiversité sert à désigner la variabilité du monde abiotique dans ses composantes géologique (roches, minéraux, fossiles), géomorphologique (formes du relief ), pédologique (sols) et hydrologique (eaux de surface et souterraines), ainsi que l’ensemble des processus naturels et anthropogéniques qu...
Poster
Full-text available
Under the effect of artillery, the First World War greatly modified the landscapes along the Western Front. In Verdun, where nearly 60 million of shells were fired during the year of the battle (1916), the bombardments exposed the ground and sculpted a lunar landscape on a territory of approximately 175 km². On the right bank of the Meuse River, to...
Presentation
Full-text available
In 2013, an airborne LiDAR mission conducted over the Verdun battlefield has brought to light the relief inherited from the First World War that was until now concealed by the Verdun forest planted in the 1930’s. The digital terrain model (DTM) collected with centimetre level accuracy reveals the existence of a huge number and range of small-scale...
Article
Geological heritage and biodiversity heritage, at the crossroads between conservation and development. Reconstruction of natural heritage trajectories in the Cariri of Ceará (Northeastern Brazil) Firstly recognized for its biodiversity heritage value, with the legal classification of the first National Forest of Brazil in 1946, the Cariri region, l...
Article
Cet article introduit le dossier thématique des Annales de géographie consacré au géopatrimoine, composante non vivante du patrimoine naturel. L’article analyse les conditions d’émergence de ce champ patrimonial récemment reconnu. Il examine, dans une perspective géographique, sa capacité de territorialisation. À travers le double prisme de la spat...
Article
In addition to a Fossil-Lagerstätte of international significance for the Lower Cretaceous, the Araripe basin is one of the richest and most threatened reservoirs of geodiversity in Brazil. Far from being limited to its palaeontological heritage, themajor importance of geodiversity in the Araripe region is also related to high levels of geomorphodi...
Presentation
Full-text available
By its unprecedented industrial character, the First World War marked landscapes like no other conflict in the world. As a result of artillery bombardment and building facilities, the relief suffered major disturbances giving rise to millions anthropogenic landforms of warfare origin on the Western front: shell craters, trenches, shelters and gun s...
Article
This article introduces the thematic issue of the Annales de géographie devoted to geoheritage, the abiotic component of the natural heritage. The article analyzes the conditions for the emergence of this recently recognized patrimonial field. It examines, from a geographical perspective, its capacity for territorialization. Through the double pris...
Article
Full-text available
Résumé Cent ans après la Grande Guerre, les traces des champs de bataille restent présentes dans les paysages du Nord-Est de la France. En 2013, une prospection par LiDAR aéroporté de la forêt domaniale de Verdun a mis en évidence sous forme d’images 3-D à haute résolution les vestiges de guerre masqués par le manteau forestier. Cette étude explor...
Chapter
Full-text available
En France, une réserve naturelle est un outil juridique permettant une protection efficace et pérenne d’un patrimoine naturel fragile ou remarquable. À côté d’une réglementation stricte inscrite dans son acte de classement, une réserve naturelle est aussi un outil de gestion dont l’objectif prioritaire reste la conservation du patrimoine naturel, i...
Conference Paper
Full-text available
Geotourism and geoconservation are the main management issues of geoheritage inventories. In France, the INPG (National Inventory of Geological Heritage) constitutes a good basis for the definition of future protected areas and the further promotion of geoheritage. However, methodological adjustments are often necessary to fit with the different fi...
Article
Full-text available
Os processos que levam a inversão do relevo podem ocorrer quando há um alçamento de uma determinada superfície pela tectônica ou pela erosão diferencial. Nesse processo, antigas áreas agradacionais podem ser alçadas a cotas elevadas, transformando baixos em altos topográficos. Níveis sedimentares preservados sobre superfícies elevadas podem constit...
Conference Paper
Full-text available
For two decades, geoconservation has been driven by the need to conserve geodiversity considering its values or most valuable elements (i.e. geoheritage) facing the internal or external threats to it, mainly associated with human activities causing damages or irreversible destruction of sites. One main difficulty arises in how geoconservation prior...
Conference Paper
Full-text available
3) ANR 12 SENV-0004 SAMCO Landslides are common natural hazards in the Southern French Alps, where they may affect human lives and cause severe damages to infrastructures. As a part of the SAMCO research project dedicated to risk evaluation in mountain areas, this study focuses on the Guil river catchment (317 km 2), Queyras, to assess landslide ha...
Article
Full-text available
L’étude des peuplements d’Orthoptères dans les prairies humides du Haut-Bocage vendéen et de la Gâtine poitevine a conduit à recenser 26 espèces, dont 22 sont plus particulièrement associées aux prairies pâturées mésohygrophiles. L’analyse cénotique du peuplement a permis d’individualiser une nouvelle synusie – le Stethophymetum grossae (nov.) – da...
Article
At the border between the states of Ceará and Pernambuco (northeast Brazil), the Chapada do Araripe is a high plateau (800–1000 m a.s.l.) formed by a slab of Cenomanian fluvial sandstone. This caprock is underlain by lacustrine or marine Albian layers and older rift deposits. During the Cretaceous, the Araripe basin lay at a palaeoelevation close t...
Poster
Full-text available
Officially recognised in 1992 by the American archaeologist LuAnn Wandsnider, archaeo-geomorphology is the study of cultural landscapes encompassing geomorphology, archaeology and heritage conservation science. At the intersection of conflict archaeology and geomorphology, conflict archaeo-geomorphology aims more specifically to identify and analys...
Article
Full-text available
Reconnu depuis une dizaine d’années seulement, le patrimoine géomorphologique fait l’objet d’une attention accrue de la part des scientifiques et des acteurs du territoire, en raison des menaces grandissantes qui pèsent sur la préservation des reliefs et des paysages, mais aussi compte tenu des potentialités qu’offre la valorisation culturelle et t...
Book
Full-text available
More than a simple monograph, the authors present a comprehensive geomorphic overview of a large tropical region where they show how deciphering the long-term landform evolution helps understanding the present set of landscapes and morphodynamic environments. The Equatorial margin of the Brazilian “Nordeste” displays stratigraphic landmarks whose i...
Book
Full-text available
La géomorphologie, science qui étudie les formes du relief terrestre, a connu de fortes évolutions ces dernières décennies. Faisant désormais la synthèse entre l’approche des géosciences et celle des sciences sociales, elle est devenue une composante majeure de la compréhension de l’environnement et une science applicable, notamment dans le domaine...
Chapter
The study area is part of the Brazilian Equatorial continental margin, formed after the Equatorial Atlantic opening in Aptian times. Onshore, a Precambrian basement—the Borborema structural province—is subdivided into several geological domains by a wide system of Late Proterozoic shear zones partly reactivated in the Cretaceous. The present struct...
Chapter
Forming a continuous clastic apron near the coast, the mainly Neogene Barreiras Formation records the last peak of erosion in the hinterland, which coincided with the onset of more arid climates at ~13 Myear or earlier. Dissected pediments and sparse debris fans visible at the base of some escarpments suggest recent erosive activity and possible sl...
Chapter
The discontinuous escarpment of Ceará-Rio Grande do Norte appears as a composite landform. Its definition matches that of Great Escarpments that develop on initial high-elevation margins, with landward retreat of the initial rift-flank uplift. Nevertheless, the term “marginal escarpment ” appears more appropriate, corresponding to a particular tect...
Chapter
A wide half-circle of crystalline and sedimentary highlands surrounds the “Sertaneja depression,” opening onto the Equatorial Atlantic transform margin . Intersected seaward by offset elements of a 600 km long escarpment which overlooks coastal lowlands, it contains a roughly concentric system of erosion plains and scattered mountains shaped into a...
Chapter
The present relief reflects a juxtaposition of highly contrasting elements of various ages. The landscape formed in the context of a fluctuating but continuously falling base level since the Cenomanian. After formation of the transform passive margin in Aptian times, landscape development was further driven by regional swell-like uplift . The seawa...
Poster
Full-text available
Outil de prédilection des archéologues depuis une dizaine d’années, la technologie LiDAR (Light Detection and Ranging) n’a cessé d’enrichir la carte archéologique dans les espaces forestiers jusqu’alors peu appréhendés. Cette technique laser permet de s’affranchir du bruit atmosphérique et du masque forestier pour produire une image en relief de la...