These include many of WWF's
priority species, including
elephants,
rhinos,
sharks, and
big-leaf mahogany.
These listings have led to many improvements in the management and regulation of international trade in wild species.
For example, bans on international trade in some species – such as elephants, rhinos, and tigers – are helping to ensure these species continue to survive in the wild, by eliminating markets for products such as rhino horn, ivory, and tiger parts and so reducing illegal poaching to supply these products.
Listing of other species in Appendix II has helped ensure that trade in these species is sustainable and legal, by requiring exporting countries to provide an export certificate verifying this.