Explanipedia

Improved central place foraging modeling: importance of landscape context and modeling strategies in the case of a French sweat bee Open

Anouk Glad, Sylvain Moulhérat, Émilie Andrieu, Matthieu Moulherat, David Sheeren , et al. · 2025

Prédiction de l’indice de biodiversité potentielle en forêt tempérée à partir de traits spectraux et structuraux Open

David Sheeren, Manon Collard, Olivier Martin‐Ducup, Nicolas Mellado · 2025

Présentation des résultats d'un travail initié dans le cadre du PFE de M. Collard (2024). Résultats présentés dans le cadre du colloque AdNatura 2024 et lors de séminaire de clôture du projet OcciGEN.

Habitat Quality Assessment of Temperate Forest Ecosystems: An Airborne Lidar-Based Approach to Predict the Index of Biodiversity Potential (Ibp) at Large Scale Open

Manon Collard, Olivier Martin‐Ducup, Nicolas Mellado, Laurent Larrieu, Fabien Laroche , et al. · 2025

End-to-end simulations to optimize imaging spectroscopy mission requirements for seven scientific applications Open

Xavier Briottet, Karine Adeline, Touria Bajjouk, V. Carrère, Malik Chami , et al. · 2024

CNES is currently carrying out a Phase A study to assess the feasibility of a future hyperspectral imaging sensor (10 m spatial resolution) combined with a panchromatic camera (2.5 m spatial resolution). This mission focuses on both high s…

Submonthly Assessment of Temperate Forest Clear-Cuts in Mainland France Open

Stéphane Mermoz, Juan Doblas, Milena Planells, David Morin, Thierry Koleck , et al. · 2024

Remote sensing satellites allow large-scale and fast detections of forest loss. Operational forest loss detection systems have been mainly developed over tropical forests; however, it is increasingly important to have access to accurate an…

HedgeTools : un outil d’analyse spatiale dédié à l’évaluation de la multifonctionnalité des haies Open

Gabriel Marquès, Lewis Villierme, Jean-Baptiste Boissonnat, Guillaume Guébin, Marc Lang , et al. · 2024

Les haies jouent des rôles clés dans les paysages agricoles, mais leur caractérisation automatique par analyse spatiale est complexe. Dans cet article, nous décrivons les principales fonctionnalités d’un outil open source — HedgeTools — qu…

Modelling Wild Bees’ Foraging Movements in Heterogeneous Landscapes: Contribution of a Stochastic Movement Simulator (Sms) Open

Anouk Glad, Sylvain Moulhérat, Émilie Andrieu, Matthieu Moulherat, David Sheeren , et al. · 2024

Télédétection de la biodiversité : un état des lieux Open

David Sheeren · 2023

International audience

HedgeTools : une boîte à outils pour caractériser automatiquement les haies en milieu agricole Open

David Sheeren, Gabriel Marquès, Lewis Villierme, Jean-Baptiste Boissonnat, Guillaume Guébin , et al. · 2023

International audience

Cartographie de la diversité spécifique forestière des milieux tempérés à partir d’imagerie hyperspectrale Open

Marc Lang, Max Ferriere, Florian de Boissieu, Xavier Briottet, Sophie Fabre , et al. · 2023

International audience

A new method for quantifying treeline-ecotone change based on multiple spatial pattern dimensions Open

Déborah Birre, Thierry Feuillet, Roman Lagalis, Johan Milian, Frédéric Alexandre , et al. · 2023

A new method for quantifying treeline-ecotone change based on multiple spatial pattern dimensions Open

Déborah Birre, Thierry Feuillet, Roman Lagalis, Johan Milian, Frédéric Alexandre , et al. · 2022

Context Treeline-ecotone spatial patterns and their dynamics reflect underlying processes. Changes in ecotone pattern may reflect changes in climatic drivers or land-use practices. However, characterizing these dynamics presents a major ch…

Agro-environmental indicators. New IACS VISION in ACTION – NIVA Open

Éric Ceschia, Ludovic Arnaud, Taeken Wijmer, Ahmad Al Bitar, Mathieu Fauvel , et al. · 2022

Sentinel-2 Poplar Index for Operational Mapping of Poplar Plantations over Large Areas Open

Yousra Hamrouni, Éric Paillassa, Veronique V. Cheret, Claude Monteil, David Sheeren · 2022

Poplar (Populus spp.) is a fast-growing tree planted to meet the growing global demand for wood products. In France, the country with the largest area planted with poplar in Europe, accurate and up-to-date maps of its spatial distribution …

PSDR4 Sebioref - Une approche paysagère et territorialisée des services écosystémiques et des valeurs attachées pour guider les décideurs publics. Open

Annie Ouin, Émilie Andrieu, Gérard Balent, Romain Carrié, Jean‐Philippe Choisis , et al. · 2022

The aims of the Sebioref projet was to estimate the pollination service provided by wild bees and identify the landscape properties driving the delivery of this ecosystem service. The ultimate objective was to explore the potential coordin…

Sentinel-HR Phase 0 Report Open

Julien Michel, Olivier Hagolle, Jean-Marc Delvit, Martin Thierry, Lebegue Laurent , et al. · 2022

How far is enough? Prediction of the scale of effect for wild bees Open

James Desaegher, Annie Ouin, David Sheeren · 2022

A crucial issue for landscape ecologists is identifying the spatial extents at which a landscape affects species occurrence. Multi‐scale analyses are usually conducted to identify the ‘scale of effect', that is, the spatial extent associat…

Individual Tree Crown Delineation Method Based on Multi-Criteria Graph Using Geometric and Spectral Information: Application to Several Temperate Forest Sites Open

Matthieu Deluzet, Thierry Erudel, Xavier Briottet, David Sheeren, Sophie Fabre · 2022

Individual tree crown (ITC) delineation in temperate forests is challenging owing to the presence of broadleaved species with overlapping crowns. Mixed coniferous/deciduous forests with characteristics that differ with the type of tree thu…

MUESLI Hyperspectral & LiDar Data Set Open

Mathieu Fauvel, David Sheeren, Viallate Aude · 2021

The data set contain the hyperspectral images and the corresponding LiDar data from the MUESLI project. The meta data is included in the tif files. For the spectral bands, a copy of the original hdr file is below: fwhm = {4.5,4.5,4.5,4.5,4…

MUESLI Hyperspectral & LiDar Data Set Open

Mathieu Fauvel, David Sheeren, Viallate Aude · 2021

The data set contain the hyperspectral images and the corresponding LiDar data from the MUESLI project. The meta data is included in the tif files. For the spectral bands, a copy of the original hdr file is below: fwhm = {4.5,4.5,4.5,4.5,4…

Farming intensity indirectly reduces crop yield through negative effects on agrobiodiversity and key ecological functions Open

Rémi Duflot, Magali SanCristobal, Émilie Andrieu, Jean‐Philippe Choisis, Diane Esquerré , et al. · 2021

International audience

Graph-Based Approach to Improve Individual Tree Crown Delineation in Temperate Forest using Structural And Spectral Information Open

Matthieu Deluzet, Thierry Erudel, Xavier Briottet, Thomas Houet, David Sheeren , et al. · 2021

International audience

Optimising spatial distribution of mass‐flowering patches at the landscape scale to increase crop pollination Open

James Desaegher, David Sheeren, Annie Ouin · 2021

The addition of floral resources is often recommended to improve entomophilous crop pollination. However, implanting new plots of mass‐flowering resources in landscapes can have both positive and negative effects on pollinator visitation r…

Spatial dependence between training and test sets: another pitfall of classification accuracy assessment in remote sensing Open

Nicolas Karasiak, Jean-François Dejoux, Claude Monteil, David Sheeren · 2021

Tree species phenology survey suitable for Sentinel-2 Open

Nicolas Karasiak, Willm Jérôme, M. K. Jerome, David Sheeren · 2021

Phenological monitoring for 14 plots of 7 deciduous tree species from 2017 to end of 2019 located in the south west of France near the city of Toulouse. Temporal revisit was every 10 day according to the day of visit of Sentinel-2. Plots a…

Tree species phenology survey suitable for Sentinel-2 Open

Nicolas Karasiak, Willm Jérôme, M. K. Jerome, David Sheeren · 2021

Phenological monitoring for 14 plots of 7 deciduous tree species from 2017 to end of 2019 located in the south west of France near the city of Toulouse. Temporal revisit was every 10 day according to the day of visit of Sentinel-2. Plots a…

Tree species phenology survey suitable for Sentinel-2 Open

Nicolas Karasiak, Willm Jérôme, M. K. Jerome, David Sheeren · 2021

Phenological monitoring for 14 plots of 7 deciduous tree species from 2017 to end of 2019 located in the south west of France near the city of Toulouse. Temporal revisit was every 10 day according to the day of visit of Sentinel-2. Plots a…

Apports de la télédétection au calcul d’indicateurs agri-environnementaux au service de la PAC, des agriculteurs et porteurs d’enjeu. Open

Christian Bockstaller, Clélia Sirami, David Sheeren, Olivier Keichinger, Ludovic Arnaud , et al. · 2021

The development of multicriteria evaluation methods is one of the steps to support the current agroecological transition. The implementation of agri-environmental indicators at regional scale faces a major obstacle which is the acquisition…

NIVA UC1b Agro-environmental indicators Open

Éric Ceschia, Clélia Sirami, Christian Bockstaller, David Sheeren, Ludovic Arnaud , et al. · 2020

International audience

Couplage de modèles agro-hydrologique, agro-écologique et économique pour déterminer les paysages agricoles assurant le meilleur compromis entre services écosystémiques Open

Annie Ouin, Jean‐Luc Probst, Jean-Pierre Del Corso, James Desaegher, Vanessa dos Santos , et al. · 2020

De multiples services écosystémiques sont rendus dans les paysages agricoles qui contribuent au revenu des agriculteurs (fertilité des sols, pollinisation, régulation des ravageurs), à la santé humaine (qualité et quantité d’eau) et celle …

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