This brief was summarised from Chapter 12 of BGCI’s and IABG’s Species Recovery Manual (S. Godefroid & F. Van Rossum. 2018. Chapter 12. Monitoring and post-care. In : Heywood, V., Shaw K., Harvey-Brown Y. and Smith P. (eds.) BGCI and IABG's Species Recovery Manual. Botanic Gardens Conservation International, Richmond, UK, pp. 87-94)