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Journal Article

Hyperdominance in the Amazonian Tree Flora


Wittmann,  F.
Biogeochemistry, Max Planck Institute for Chemistry, Max Planck Society;


Schöngart,  J.
Biogeochemistry, Max Planck Institute for Chemistry, Max Planck Society;

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ter Steege, H., Nigel, C. A., Sabatier, D., Baraloto, C., Salomao, R. P., Guevara, J. E., et al. (2013). Hyperdominance in the Amazonian Tree Flora. Science, 342(6156): 1243092. doi:10.1126/science.1243092.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0015-89C7-C
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.