This database contains botanical records either relating to material present in one of the Naturalis collections, or to material that has been or is being used in research projects. The records usually relate to herbarium specimens, but it also contains data on silica-gel samples, wood samples, spirit collections, carpological collections, etc.; rarely to observations only. The Naturalis collections have their strong points in The Netherlands and surrounding countries, Southeast Asia and New Guinea, West- and Central-Africa, Ethiopia and the Guyanas.

This database contains botanical records either relating to material present in one of the Naturalis collections, or to material that has been or is being used in research projects. The records usually relate to herbarium specimens, but it also contains data on silica-gel samples, wood samples, spirit collections, carpological collections, etc. rarely to observations only.

Currently the molluscan collection of ZMA consists of over 12.000 samples (ca. 50.000 specimens) of Pectinoidea (ca. 10.800 Pectinidae and ca. 1450 Propeamussiidae samples) of which 143 type samples (69 type lots of Pectinidae and 74 type lots of Propeamussiidae), all (re)identified and digitilized by Henk H. Dijkstra (The Netherlands). The major part (8345 samples) of this collection is donated by Dijkstra to ZMA. The remaining part is from different sources, i.e. from private donations, exchanges, scientific cruises and expeditions. Nearly all the recent species of Pectinidae (ca. 300 species) and Propeamussiidae (ca. 100 species) are represented. Most of the Pectinidae species are collected by private collectors or by fishermen from the tidal zone to upper bathyal depths, whereas Propeamussiidae are mostly sampled from bathyal depths by the Siboga expedition and the recent French expeditions to the tropical Indo-Pacific.

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.