Guidelines for the deployment of basic materials and seed transfertextreporttechnical reportDeliverableEgbert Beuker ; José Climent; Christophe Orazio; Ricardo Alia ; Regina Chambel ; an Kowalczyk,aut27TREES4FUTURE2016monographichttp://www.trees4future.eu/uploads/t4fdeliverables/T4F_D3.5_Submitted.pdfAs a result of climate change the presently used deployment areas for forest reproductive material (FRM) may not be the optimal in the near future. One way to address this problem is assisted migratio n (AM), which is defined as the human assisted movement of species in response to climate change. To estimate the optimal rate of transfer to be recommended, data from provenance trials can be used. Numerous provenance trials have been established during t he last century for many tree species. The response of the provenances to a transfer is the result of a combination of genetic change and phenotypic plasticity. On the other hand, the effects of a transfer on phenology, pests and diseases as well as pertur bations are not covered well by provenance trials. In order for assisted migration to be functional in Europe it is important that transfer of FRM can be applied without bothering political borders . Moreover, phenotypic plasticity is a relevant criterion t o be consider ed, but the adaptive/neutral/non - adaptive nature of plasticity for each trait or groups of traits must be taken into account. I t is very important that climate data on the smallest resolution available is used, and that also the most sophistic ated climate change scenarios are used. This paper presents three practical examples on the use of data from provenance trials for the definition of future deployment areas for FRM in Europe .English