Guyadiv is a network of permanent forest plots installed in French Guiana. The site of Réserve Naturelle Trésor is composed of one 1ha-plot. A complete inventory has been made in 2003 : 443 trees with dbh>=10cm have been registrated and 442 species have been identified. 99,8% of the registrated trees have been identified to the species level. We only have the point coordinates and not the precise demarcation of the sample plot. In order to calculate the bounding box for the plots, we have expanded the point location 100 meters in each direction.

The project Bridging Information on Tree Diversity in French Guiana, and a Test of Ecological Theories (BRIDGE) brings together researchers from nine different European research groups in tropical ecology, and seeks to improve our knowledge on the various dimensions of tree biological diversity in French Guiana. The project includes ten one-hectare old-growth forest tree plots across a range of geology and rainfall in French Guiana. The amount of niche conservatism across an ecologically relevant set of functional, reproductive, and defense traits have been measured in the field.