HEUERTZ, Myriam; BONNIER, Julien; SCHMITT, Sylvain; LEPAIS, Olivier; CHANCEREL, Emilie; GUICHOUX, Erwan; CAZAL, Saint-Omer; TROISPOUX, Valérie; TRAISSAC, Stephane; BRUNAUX, Olivier; TYSKLIND, Niklas

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HEUERTZ, Myriam
Biodiversité, Gènes & Communautés [BioGeCo]

BONNIER, Julien
Biodiversité, Gènes & Communautés [BioGeCo]
Ecologie des forêts de Guyane [UMR ECOFOG]

SCHMITT, Sylvain
Forêts et Sociétés [UPR Forêts et Sociétés]

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Communication dans un congrès

Ce document a été publié dans

7th European Congress on Conservation Biology, 2024-06-17, Bologna.

Résumé en anglais

French Guiana is an overseas territory of France covered up to 97% by tropical rainforest with a vast biodiversity, including ca. 1800 tree species. This forest remains largely intact but suffers pressure from mining and climate change, as well as from logging in a reduced area, the permanent forest domain. Conserving the rainforest of French Guiana and achieving sustainable timber production to meet the demands of a growing human population is a considerable challenge. We present an overview of our ongoing research in ecological and conservation genomics in ecologically and economically important tree species of French Guiana. At the local scale in the Paracou lowland forest we showed how tropical tree species complexes of the genera Symphonia (Clusiaceae) and Eschweilera (Lecythidaceae) are adapted to microenvironmental conditions relating to moisture, soil chemistry, and light. In the most harvested timber tree Dicorynia guianensis (Fabaceae) we use estimates of regional and local population genetic structure, population demographic histories, and genomic signatures of adaptation to derive sustainable management guidelines for this species under future climates. We also present tools under development for simplified field delimitation of morphologically similar species of Eschweilera in view of sustainable harvesting of common species while conserving rare related species.< Réduire

Mots clés en anglais

harvesting/exploitation

genetics/genomics

endangered species

Origine

Importé de hal

Unités de recherche

BioGeCo (Biodiversité Gènes & Communautés) - UMR 1202