The red list of Fraxinus.
This publication contains IUCN Red List Assessments for 53 species of Fraxinus, including 11 species threatened with extinction in the wild. The six threatened north American species are facing serious population decline as a result of infestation by the invasive emerald ash borer (EAB). Threats to the remaining five species include restricted geographic range, logging and habitat loss. A further seven species are assessed as Data Deficient as a conservation category could not be assigned due to insufficient information. The majority of species within Fraxinus (66%) were considered to not be of conservation concern, a consequence of many species having wide native geographical ranges. The publication highlights the scale of threat faced by the group and the importance of greater monitoring and protection against invasive pests and diseases. Further, it aims to engage and promote a more concerted effort towards addressing these global issues for Fraxinus and also other important plant groups that may be affected by similar invasions. It also identifies the species in need of global conservation action with small ranges and population size.