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Hyperdominance in the Amazonian Tree Flora
The finding that Amazonia is dominated by just 227 tree species implies that most biogeochemical cycling in the world’s largest tropical forest is performed by a tiny sliver of its diversity.
Continental-scale patterns of canopy tree composition and function across Amazonia
By using the seven forest inventories complemented with trait and inventory data collected elsewhere, two dominant gradients in tree composition and function across the Amazon are shown, one paralleling a major gradient in soil fertility and the other paralleled a gradient in dry season length.
An analysis of the floristic composition and diversity of Amazonian forests including those of the Guiana Shield
A large number of newly published and unpublished hectare plots in Amazonia and the Guiana Shield area allow an analysis of family composition and testing of hypotheses concerning alpha-diversity in…
A spatial model of tree α-diversity and tree density for the Amazon
- H. ter Steege, N. Pitman, W. Morawetz
- Environmental ScienceBiodiversity & Conservation
- 1 November 2003
Large-scale patterns of Amazonian biodiversity have until now been obscured by a sparse and scattered inventory record. Here we present the first comprehensive spatial model of tree α-diversity and…
Tree Diversity in Tropical Rain Forests: A Validation of the Intermediate Disturbance Hypothesis
This hypothesis was tested on a sample of 17,000 trees in a Guianan forest, 10 years after a silvicultural experiment that added to natural treefall gaps a wide range of disturbance intensities.
The influence of soil cover organization on the floristic and structural heterogeneity of a Guianan rain forest
The impact of soil cover organization on the forest community has been studied in a 19-ha tract at Piste de St Elie station in French Guiana. 195 species each represented by at least 10 individuals…
Persistent effects of pre-Columbian plant domestication on Amazonian forest composition
Analysis of plant distributions, archaeological sites, and environmental data indicates that modern tree communities in Amazonia are structured to an important extent by a long history of plant domestication by Amazonian peoples.
Using functional traits and phylogenetic trees to examine the assembly of tropical tree communities
This work provides the most comprehensive examination to date of the relative importance of environmental filtering and limiting similarity in structuring tropical tree communities and confirms that environmental filtering is the overriding influence on community assembly in these species-rich systems.
Contrasting taxonomic and functional responses of a tropical tree community to selective logging
The results suggest that managers of tropical forests should limit overall surface area converted to logging gaps by creating fewer, larger gaps during selective logging, to reduce impacts on the taxonomic and functional composition of the regenerating stand.
Interspecific variability of δ13C among trees in rainforests of French Guiana: functional groups and canopy integration
- D. Bonal, D. Sabatier, P. Montpied, D. Tremeaux, J. Guehl
- Environmental ScienceOecologia
- 23 August 2000
The negative relationship found between species δ13C and midday leaf water potential (Ψwm) suggests that low δ 13C is associated with high whole tree leaf specific hydraulic conductance.