Slik JW Arroyo-Rodríguez V Aiba S Alvarez-Loayza P Alves LF Ashton P Balvanera P Bastian ML Bellingham PJ van den Berg E Bernacci L da Conceição Bispo P Blanc L Böhning-Gaese K Boeckx P Bongers F Boyle B Bradford M Brearley FQ Breuer-Ndoundou Hockemba M Bunyavejchewin S Calderado Leal Matos D Castillo-Santiago M Catharino EL Chai SL Chen Y Colwell RK Chazdon RL Robin CL Clark C Clark DB Clark DA Culmsee H Damas K Dattaraja HS Dauby G Davidar P DeWalt SJ Doucet JL Duque A Durigan G Eichhorn KA Eisenlohr PV Eler E Ewango C Farwig N Feeley KJ Ferreira L Field R de Oliveira Filho AT Fletcher C Forshed O Franco G Fredriksson G Gillespie T Gillet JF Amarnath G Griffith DM Grogan J Gunatilleke N Harris D Harrison R Hector A Homeier J Imai N Itoh A Jansen PA Joly CA de Jong BH Kartawinata K Kearsley E Kelly DL Kenfack D Kessler M Kitayama K Kooyman R Larney E Laumonier Y Laurance S Laurance WF Lawes MJ Amaral IL Letcher SG Lindsell J Lu X Mansor A Marjokorpi A Martin EH Meilby H Melo FP Metcalfe DJ Medjibe VP Metzger JP Millet J Mohandass D Montero JC de Morisson Valeriano M Mugerwa B Nagamasu H Nilus R Ochoa-Gaona S Onrizal Page N Parolin P Parren M Parthasarathy N Paudel E Permana A Piedade MT Pitman NC Poorter L Poulsen AD Poulsen J Powers J Prasad RC Puyravaud JP Razafimahaimodison JC Reitsma J Dos Santos JR Roberto Spironello W Romero-Saltos H Rovero F Rozak AH Ruokolainen K Rutishauser E Saiter F Saner P Santos BA Santos F Sarker SK Satdichanh M Schmitt CB Schöngart J Schulze M Suganuma MS Sheil D da Silva Pinheiro E Sist P Stevart T Sukumar R Sun IF Sunderland T Sunderand T Suresh HS Suzuki E Tabarelli M Tang J Targhetta N Theilade I Thomas DW Tchouto P Hurtado J Valencia R van Valkenburg JL Van Do T Vasquez R Verbeeck H Adekunle V Vieira SA Webb CO Whitfeld T Wich SA Williams J Wittmann F Wöll H Yang X Adou Yao CY Yap SL Yoneda T Zahawi RA Zakaria R Zang R de Assis RL Garcia Luize B Venticinque EM 2015 The high species richness of tropical forests has long been recognized, yet there remains substantial uncertainty regarding the actual number of tropical tree species. Using a pantropical tree inventory database from closed canopy forests, consisting of 657,630 trees belonging to 11,371 species, we use a fitted value of Fisher's alpha and an approximate pantropical stem total to estimate the minimum number of tropical forest tree species to fall between ∼ 40,000 and ∼ 53,000, i.e., at the high end of previous estimates. Contrary to common assumption, the Indo-Pacific region was found to be as species-rich as the Neotropics, with both regions having a minimum of ∼ 19,000-25,000 tree species. Continental Africa is relatively depauperate with a minimum of ∼ 4,500-6,000 tree species. Very few species are shared among the African, American, and the Indo-Pacific regions. We provide a methodological framework for estimating species richness in trees that may help refine species richness estimates of tree-dependent taxa. application/pdf https://sonar.ch/global/documents/255465 eng info:eu-repo/semantics/altIdentifier/doi/10.1073/pnas.1423147112 info:eu-repo/semantics/altIdentifier/pmid/26034279 info:eu-repo/semantics/openAccess Proceedings of the National Academy of Sciences of the United States of America. - 2015 Fisher’s log series diversity estimation pantropical spatial richness patterns tropical tree species richness Biodiversity Conservation of Natural Resources Databases, Factual Ecosystem Forests Phylogeography Rainforest Species Specificity Statistics, Nonparametric Trees Tropical Climate An estimate of the number of tropical tree species. http://purl.org/coar/resource_type/c_6501