Hyperdominance in the Amazonian tree flora.
Science
; 342(6156): 1243092, 2013 Oct 18.
Article
em En
| MEDLINE
| ID: mdl-24136971
ABSTRACT
The vast extent of the Amazon Basin has historically restricted the study of its tree communities to the local and regional scales. Here, we provide empirical data on the commonness, rarity, and richness of lowland tree species across the entire Amazon Basin and Guiana Shield (Amazonia), collected in 1170 tree plots in all major forest types. Extrapolations suggest that Amazonia harbors roughly 16,000 tree species, of which just 227 (1.4%) account for half of all trees. Most of these are habitat specialists and only dominant in one or two regions of the basin. We discuss some implications of the finding that a small group of species--less diverse than the North American tree flora--accounts for half of the world's most diverse tree community.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Árvores
/
Biodiversidade
/
Rios
Tipo de estudo:
Prognostic_studies
País/Região como assunto:
America do sul
Idioma:
En
Revista:
Science
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Holanda