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The number of tree species on Earth / Roberto Cazzolla Gatti in Proceedings of the National Academy of Sciences of the United States of America PNAS, vol 119 n° 6 (2022)  

Public [article]  inProceedings of the National Academy of Sciences of the United States of America PNAS > vol 119 n° 6 (2022) . - n° e2115329119 Titre : The number of tree species on Earth Type de document : Article/Communication Auteurs : Roberto Cazzolla Gatti, Auteur ; Peter B. Reich, Auteur ; Javier G. P. Gamarra, Auteur ; et al., Auteur ; Olivier Bouriaud , Auteur Année de publication : 2022 Article en page(s) : n° e2115329119 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] distribution spatiale [Termes IGN] essence d'arbre [Termes IGN] forêt [Termes IGN] richesse floristique [Termes IGN] Terre (planète) [Vedettes matières IGN] Ecologie forestière Résumé : (auteur) One of the most fundamental questions in ecology is how many species inhabit the Earth. However, due to massive logistical and financial challenges and taxonomic difficulties connected to the species concept definition, the global numbers of species, including those of important and well-studied life forms such as trees, still remain largely unknown. Here, based on global ground-sourced data, we estimate the total tree species richness at global, continental, and biome levels. Our results indicate that there are ∼73,000 tree species globally, among which ∼9,000 tree species are yet to be discovered. Roughly 40% of undiscovered tree species are in South America. Moreover, almost one-third of all tree species to be discovered may be rare, with very low populations and limited spatial distribution (likely in remote tropical lowlands and mountains). These findings highlight the vulnerability of global forest biodiversity to anthropogenic changes in land use and climate, which disproportionately threaten rare species and thus, global tree richness. Numéro de notice : A2022-155 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : 10.1073/pnas.2115329119 Date de publication en ligne : 31/01/2022 En ligne : https://doi.org/10.1073/pnas.2115329119 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100309 [article]

Voir aussi

• Correction for Cazzolla Gatti et al., The number of tree species on Earth / Roberto Cazzolla Gatti in Proceedings of the National Academy of Sciences of the United States of America PNAS, vol 119 n° 13 (2022)