Eric MaireUniversity of Strasbourg | UNISTRA · Institut écologie et environnement (CNRS-INEE)
Eric Maire
PhD in signal processing, electronic, image analysis and automatic control
Agroforestry, Sutainable development,Mapping social perceptions,Remote sensing,Bee,Landscape studies, Image processing
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59
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Introduction
Additional affiliations
September 2020 - present
September 2008 - September 2020
April 1998 - August 2008
Publications
Publications (59)
This article presents a stakeholders' mapping exercise in 2017 and 2018 in the Oyapock watershed. Ninety-two maps were obtained covering almost the entire watershed. Results show that roads are becoming a more significant spatial reference to people, apart from the population minority living along the river. This latter polarizes itself into Brazil...
Over the last century, lands used for livestock and agriculture have been progressively abandoned on mountains across Europe. The afforestation of abandoned agricultural lands leads to significant environmental impacts particularly in karst catchments, which are highly responsive to climate change and human disturbances. Due to the lack of long-ter...
As the heritage of rural systems which have used the tree as a structuring element, landscapes with non-woodland trees are under threat and are rarely taken into consideration in public policies. Yet they are of environmental and political importance not only due to the problems and challenges they present but also because of their potential, namel...
Le rôle de la composante ligneuse dans l’apport de ressources trophiques aux colonies d’abeilles domestiques Apis mellifera L. en contexte paysager agricole (Gers, 32).
Espèce mutualiste et polylectique, l’abeille domestique est impliquée dans le processus de pollinisation de nombreuses plantes à fleurs sauvages et cultivées. En contrepartie, elle profite de la floraison de ces plantes pour l’acquisition de ressources polliniques et nectarifères (Pouvreau, 2004). Elle interagit avec une multitude de composantes pa...
The Green and Blue Infrastructure is one of the flagship initiatives which resulted from the second French environmental round table. It is implemented via regional plans for environmental coherence, which have an impact on regional and urban planning documents. The green corridor, as a structural element of the landscape is an essential component...
Face aux importantes pertes de cheptels actuelles, notamment le syndrome d’effondrement affectant les colonies d’abeilles, la qualité du paysage n’est pas immédiatement suspectée comme élément central et n’apparaît pas comme un facteur aussi déterminant que le varroa, les maladies parasitaires ou la présence de pesticides et fongicides.
L’originali...
Introduction
Chapitre 1 – L’abeille, le géographe et les paysages
Le paysage comme système
Information géographique et paysage, éléments de formalisation
Les stratégies d’échantillonnage
Caractérisation de la fragmentation spatiale
Caractérisation des structures de l’information thématique
Du point à la surface, comment lier données endogènes et e...
Ce travail porte sur l’évaluation des facteurs de vulnérabilité aux risques liés à l’eau des populations andines vénézuéliennes de la vallée du rio Mocotíes, touchée en février 2005 par des inondations et des coulées de boue catastrophiques (la vaguada). L’article examine en particulier le rôle des changements d’occupation du sol (déforestation, tr...
En France, le projet de trame verte et bleue (TVB) est une innovation majeure dans la prise en compte de la biodiversité par les politiques d’aménagement. Le lien entre TVB et paysages est étroit, car le paysage est un facteur d’attractivité et d’identification des territoires. La TVB devrait ainsi participer à l’amélioration de la qualité paysagèr...
This paper examines the suitability of the PBRM, a mapping tool based on the perceptions of local stakeholders, for assessing the connection between land uses and health issues. The area, rural Laos around Luang Phabang city, between the Mekong River valley and mountains, seems to have overcome the formal territorial organization based on exposure...
This study aims to analyse phenological evolution of nectar and pollen resources foraged by Apis mellifera in agricultural landscape in the south ouest of France.
Anthropogenic activities linked with irrigation have resulted in significant transformation of environment in Maddur watershed, south-western part of Karnataka State. Here irrigation from bore wells becomes an increasing practice in a context of semi-arid climatic conditions, where rainfed agriculture and extensive livestock farming only were pract...
This paper examines the suitability of the PBRM, a mapping tool based on local perceptions, for assessing the connection between land uses and health issues. The area, rural Laos around Luang Phabang city, between the Mekong River valley and mountains, seems to have overcome the formal territorial organization based on exposure risks towards an org...
This study aims to analyze social representations for water resource of market gardening producers of the high valleys of Venezuelan Andes, whereas this resource constitutes an essential tool of agricultural production. It proposes more particularly to understand how farmers perceive and assess the current state of the resource and identify the jus...
Cet article pointe d'abord les causes et/es enjeux des verrous cartographiques dans !a mise en oeuvre de la politique de la trame verte et bleue (TVB). Une connaissance de l'emprise precise de la trame verte arboree par les acteurs locaux apparait incontournable. Nous proposons ensuite une methode de teledetection associee a des algorithmes de morp...
Le pays Welche est une enclave linguistique romane en Alsace. Elle présente une toponymie presque exclusivement francophone avec un patois qui constitue un vecteur culturel important qui recèle de nombreuses allusions à des pratiques forestières et agricoles, dont certaines trouvent leurs racines dans la mise en perspective historique des défrichem...
We quantify erosion rates in the higher sectors of the Huasco Valley, in the Main Cordillera of the semi-arid Andes of Chile, using elevation differences between three successive geomorphic markers (pediments and paleo-valleys) and the present day valley. Available Ar-Ar ages of Neogene pediments are used to estimate mean erosion rates for the thre...
Agroforestry systems are fundamental features of the rural landscape of the Indian state of Kerala. Yet these mixed species systems are increasingly being replaced by monocultures. This paper explores how public policies on land tenure, agriculture, forestry and tree growing on private lands have interacted with farmer preferences in shaping land u...
Milieux changeants, instables, dangereux parfois, rudes souvent, les montagnes attirent pourtant, et ce depuis fort longtemps, des populations nombreuses. Leur anthropisation ancienne témoigne du vif intérêt qu'elles ont très tôt représenté pour les hommes et leurs activités. En plaçant au cœur de son sujet la notion de ressource, cet ouvrage propo...
La diversité des terroirs de moyenne montagne se trouve unie, fédérée par un élément omniprésent dans le paysage : il s'agit de l'arbre hors forêt, en dehors des bois et forêts. L'arbre hors forêt est partout, qu'il soit arbre épars, isolé au milieu d'une prairie ou sur la place d'un village, planté en alignement le long des routes, qu'il se trouve...
Les plages du littoral de Kénitra ont connu des modifications au cours de ces quatre dernières décennies. La mise en valeur économique de certaines plages par des aménagements touristiques et l’extraction massive de sables pour les travaux d’aménagements urbains sont à l’origine d’une déstabilisation des échanges transversaux de sédiments. Ils sont...
p style="text-align: justify;"> Aims : The aim of this 2D electrical resistivity tomography (ERT) survey performed on a vineyard plot of the Gaillac appellation was to investigate spatial and temporal variations in subsurface water supply in relation with pedo-geological and morphological features.
Methods and results : The ERT surveys were carried...
Trees outside forests are difficult to define and often seen as troublesome in areas were major crops are grown. They are nonetheless visible everywhere in French landscapes, to the extent that they do not always get the attention they deserve. The diversity of tree structures can however supply a range of economically viable resources. Furthermore...
Vulnerability assessment is in growing demand in policy circles in order to choose adapted measures and policies to reduce vulnerability of water users and resources. Within the SHIVA ANR project, we present a method to first assess and map the vulnerability of South-Indian farmers to both climate and socioeconomic changes, and second assess the co...
This study aims to analyse agroforestry systems efficiency for honeybees resources in agricultural landscapes.
En Inde du sud la chaîne de montagnes des Ghâts occidentaux, qui abrite l’essentiel des forêts de la partie méridionale du pays, est l’un des hotspots mondiaux de biodiversité et un habitat privilégié pour la grande faune. Malgré les efforts du gouvernement indien pour la protection des milieux naturels, les écosystèmes se sont dégradés au cours de...
L'analyse des risques en relation avec l'environnement s'intéresse surtout aux catastrophes naturelles telles que les éruptions volcaniques, les inondations, les séismes. Or, la société actuelle étant fortement marquée par le développement industriel et technologique, les risques d'origine anthropique deviennent de plus en plus prégnants.L'objectif...
En Inde du sud la chaîne de montagnes des Ghâts occidentaux, qui abrite l’essentiel des forêts de la partie méridionale du pays, est un habitat privilégié pour la grande faune. Les écologues perçoivent celle-ci comme un patrimoine à protéger, marqueur d’écosystèmes qu’ils tentent de préserver et de restaurer. Actuellement les politiques adoptées vi...
A methodology for determining long-term denudation rates from morphologic markers in a Digital Elevation Model (DEM) is checked by a comparative study of two drainage basins in the PrecordiUera of the Central Andes. In both cases the initial configuration of an incised pediment surface has been restored by using two different methods: the Black Top...
A methodology for determining long-term denudation rates from morphologic markers in a Digital Elevation Model (DEM) is checked by a comparative study of two drainage basins in the Precordillera of the Central Andes. In both cases the initial configuration of an incised pediment surface has been restored by using two different methods: the Black To...
A methodology for determining long-term denudation rates from morphologic markers in a Digital Elevation Model (DEM) is checked by a comparative study of two drainage basins in the PrecordiUera of the Central Andes. In both cases the initial configuration of an incised pediment surface has been restored by using two different methods: the Black Top...
The Top Hat Transform function is a grey-level image analysis tool that allows extracting peaks and valleys in a non-uniform background. This function can be applied onto a grey-level Digital Elevation Model (DEM). It is herein applied to quantify the volume of recent incised material in a mountainous Pyrenean watershed. Grey-level Closing operatio...
Landslides are an important and potentially rate-limiting process in the topographic evolution of active orogens like the Andean Belt. Various processes are responsi- ble for triggering landslides, including hillslope baselevel lowering, seismic events (Keefer, 1999); climate changes (Coriminas and Moya, 1999), anthropic effects (Sah and Mazari, 19...
The Top Hat Transform (BTH) function is a grey-level Mathematical Morphology image analysis tool that allows extracting peaks and valleys in a image with a non- uniform background. The BTH is also an adaptive filter independent from local alti- tudes and allows extraction of valleys of a given size pending on the size of a chosen structural element...
We have developed an approach to study in single living epithelial cells both cell migration and transcriptional activation, which was evidenced by the detection of luminescence emission from cells transfected with luciferase reporter vectors. The image acquisition chain consists of an epifluorescence inverted microscope, connected to an ultralow-l...
We have developed a novel approach to study luminescent light emission during migration of living cells by low-light imaging techniques. The equipment consists in an anti-vibration table with a hole for a direct output under the frame of an inverted microscope. The image is directly captured by an ultra low- light level photon-counting camera equip...
The aim of our study is to improve the performances of an optical microscope by image deconvolution technique to attain that of a confocal one in the field of laser cytofluorescence. The fluorescence of antigen lymphocyte sites marked by rhodamine is induced by a laser ((lambda) equals 543 nm) or a mercury vapor lamp. A set of scanned fluorescence...
The complete process, image acquisition, deblurring, D reconstruction and analysis has been tested on 160 normal T lymphoid cells marked with monoclonal antibodies CD4-CD8. The images are acquired from a conventional optical microscope illuminated by a mercury vapor lamp. A set of 16 serial image cuts is first grabbed by a high sensitivity Silicon...