There are about 70 alien species of mammals in Russia. Some species had occupied wide ranges before the 19th century, but most ones have penetrated into the new areas in the 20th century. Ancient invasions (before the 19th century) are known for rodents of human settlements (Mus musculus, Rattus...

Botanic gardens with international collections provide a unique opportunity to help detect potential invasive threats to forest health. Nursery stock is well-recognized as a major pathway for the introduction of invasive insects and pathogens to native ecosystems. Plant health regulators need help...