The database comprises two distinct sections: a taxon section and a (translocated) population section. The population section is the heart of the database, but a population can only be entered into the database if the taxon has first been created in the database (see Step-by-step guide).

To create a taxon, the name of the taxon (according to the GBIF nomenclature) is sufficient.

To create a population, the species name, the name of the country of translocation and a year (or year interval) of release, sowing or transplantation (RST) are sufficient.

One entry in the population part of the database = one translocated population corresponding to a unique population code. A translocated population corresponds to a species in a host (=recipient) site. Therefore,

1. a species can have multiple entries in the database;
2. a project or program can appear in several entries if it concerns several species or several host sites;
3. several entries can correspond to the same host site if several species have been translocated to this site;
4. an entry may correspond to multiple sites of origin of the biological material when a translocated population has been constituted with individuals from different source sites (or whose ancestors come from different source sites in the case where an ex situ period has passed at least one generation);
5. an entry may correspond to multiple release, sowing or transplantation events (RST) of a given species in a given site over multiple years.

In the specific case where a translocated population recorded in the database has gone extinct with sufficient certainty and individuals of the same species are reintroduced to the same site, a new translocated population is considered. In this case, two distinct entries share the same site and the same taxon.