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Título: | An estimate of the number of tropical tree species |
Palavras-chave: | Diversity estimation Fisher’s log series Pantropical Spatial richness patterns Tropical tree species Espécies de árvores tropicais Estimativa de diversidade Padrões espaciais da riqueza |
Data do documento: | Jun-2015 |
Editor: | National Academy of Sciences (NAS) |
Citação: | SLIK, J. W. F. et al. An estimate of the number of tropical tree species. Proceedings of the National Academy of Sciences (PNAS), Washington, v. 112, n. 24, p. 7472-7477, Jun. 2015. |
Resumo: | 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. |
URI: | https://www.pnas.org/content/112/24/7472 http://repositorio.ufla.br/jspui/handle/1/41604 |
Aparece nas coleções: | DBI - Artigos publicados em periódicos |
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