The Dipterocarpaceae: what do we know about the dominant family of Southeast Asian forests based on fossil and modern data? - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

The Dipterocarpaceae: what do we know about the dominant family of Southeast Asian forests based on fossil and modern data?

Résumé

The Dipterocarpaceae family comprises more than 500 species of trees, mostly found in Southeast Asia. the family dominates these forests, playing a crucial role in shaping the ecosystem. After a brief presentation of the diversity of the family, named after its characteristic winged fruits, we will see that despite its ecological importance, the evolutionary history of the family remains poorly understood, with many unresolved questions about its biogeography and diversification. With a focus on wood, we will see that the study of present-day representatives reveals a correlation between the phylogeny, biogeography, and anatomy of the family, particularly with regard to its African origin. The fossil record remains scarce despite the predominance of Dipterocarpaceae in forest ecosystems. Fossils are poorly preserved, even for wood, which is the most commonly found organ. However, fossils tend to support current observations while also raising other questions, particularly about the phylogenetic significance of wood anatomy. Finally, we will discuss the future challenges of studying this family through fossil and present-day collections, as well as in terms of conservation strategy regarding the modern threats facing Dipterocarpaceae.
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Dates et versions

hal-04416163 , version 1 (25-01-2024)

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  • HAL Id : hal-04416163 , version 1

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Nicolas Gentis, Alycia Riboulet--Posset, Juliette Marchais, Anaïs Boura. The Dipterocarpaceae: what do we know about the dominant family of Southeast Asian forests based on fossil and modern data?. 8th International Agora Paleobotanica Meeting, Sep 2023, Bellver de Cerdanya, Spain. ⟨hal-04416163⟩
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