Precisions about which translocated populations can be included in the database and which populations cannot, according to translocation type

We include in the database populations that have been reinforced with individuals from abroad (reinforcement) or created in a site where the species had gone extinct before (reintroduction) or in a site where it has never occurred to our knowledge (introduction), with the objective of improving the viability (see Box) of the reinforced population or resulting in the viability of the created population.

The necessary objective of viability can be one objective among others. For example, we include in the database populations that have been translocated with the double objective of obtaining both a viable population and data to improve further translocations (e.g. Colas et al. 2008, Noël et al. 2011), or with the double objective of obtaining a viable population as well as a so-called ecosystem service (Millenium Ecosystem Assessment 2005). We also include in the database translocated populations which viability is a particular goal included in a broader objective of, e.g., restoring a given community (e.g. Donath et al. 2007).

On the contrary, we do not include populations that were translocated for experimental purpose only, such as reciprocal transplant experiments to test for local adaptation with no aim of improving population viability (e.g., Raabová et al. 2007), or survival experiments in artificial ecosystems like aquaculture tanks (e.g. Balestri et al. 2011). We neither include in the database translocation cases where individuals were just displaced from their original site to close vicinity, allowing these individuals to be saved from, e.g., civil engineering, but where no reinforcement and no new population could be considered (e.g. Bruelheide and Flintrop 2000).