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Articles by Frédéric Mortier
Évaluation du fonctionnement de la réserve naturelle nationale de Saint-Martin en lien avec la gestion des terrains du Conservatoire de l'espace littoral et des rivages lacustres
Sommaire Résumé Liste des recommandations Introduction 1.1 Un territoire protégé au coeur d’un hotspot de biodiversité 1.2 Après 27 ans d’existence, une réserve naturelle en situation de fragilité 1.2.1 Une gouvernance de la réserve longtemps en crise 1.2.2 Une situation financière fragilisée malgré des ressources importantes 1.3 Un plan de gestion exhaustif en partie réalisé mais non priorisé, et peu approprié par l’équipe de la RNN 1.3.1 Un plan de gestion très détaillé, avec des cibles...
40 years of forest dynamics and tree demography in an intact tropical forest at M’Baïki in central Africa - Scientific Data
Abstract A vast silvicultural experiment was set up in 1982 nearby the town of M’Baïki in the Central African Republic to monitor the recovery of tropical forests after disturbance. The M’Baïki experiment consists of ten 4-ha Permanent Sample Plots (PSPs) that were assigned to three silvicultural treatments in 1986 according to a random block design. In each plot, all trees with a girth at breast height greater than 30 cm were spatially located, numbered, measured, and determined botanically.
Émission du 6 mars | Bercoff dans tous ses états | Sud Radio
Avec Olivier Babeau, essayiste, président de l'Institut Sapiens (think-tank), Bernard Lugan, historien et Frédéric Mortier enseignant et maire LR de Longué-Jumelles (Maine-et-Loire), auteur “L’honneur d’un enseignant” édition Artège Retrouvez Bercoff dans tous ses états avec André Bercoff du lundi au vendredi de 12h30 à 14h sur #SudRadio.
Unveiling African rainforest composition and vulnerability to global change
Abstract Africa is forecasted to experience large and rapid climate change1 and population growth2 during the twenty-first century, which threatens the world’s second largest rainforest. Protecting and sustainably managing these African forests requires an increased understanding of their compositional heterogeneity, the environmental drivers of forest composition and their vulnerability to ongoing changes.
Spatial validation reveals poor predictive performance of large-scale ecological mapping models
Abstract Mapping aboveground forest biomass is central for assessing the global carbon balance. However, current large-scale maps show strong disparities, despite good validation statistics of their underlying models. Here, we attribute this contradiction to a flaw in the validation methods, which ignore spatial autocorrelation (SAC) in data, leading to overoptimistic assessment of model predictive power.
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