@article{fdi:010084375,
  title = {{T}he number of tree species on {E}arth},
  author = {{G}atti, {R}. {C}. and {R}eich, {P}. {B}. and {G}amarra, {J}. {G}. {P}. and {E}ngel, {J}ulien and et al.},
  editor = {},
  language = {{ENG}},
  abstract = {{O}ne of the most fundamental questions in ecology is how many species inhabit the {E}arth. {H}owever, 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. {H}ere, based on global groundsourced data, we estimate the total tree species richness at global, continental, and biome levels. {O}ur results indicate that there are similar to 73,000 tree species globally, among which similar to 9,000 tree species are yet to be discovered. {R}oughly 40% of undiscovered tree species are in {S}outh {A}merica. {M}oreover, 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). {T}hese 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.},
  keywords = {biodiversity ; forests ; hyperdominance ; rarity ; richness ; {MONDE}},
  booktitle = {},
  journal = {{P}roceedings of the {N}ational {A}cademy of {S}ciences of the {U}nited {S}tates of {A}merica},
  volume = {119},
  numero = {6},
  pages = {e2115329119 [11 ]},
  ISSN = {0027-8424},
  year = {2022},
  DOI = {10.1073/pnas.2115329119},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084375},
}