title: Alien invaders.
abstract: Thousands of species have invaded new territories in recent decades, often aided by global trade and man-made habitat change. While many remain harmless, some may cause serious damage. Therefore, we need improvements in surveillance and in our understanding of which factors make a successful invasion possible.
authors.forename: Michael
authors.initials: M
authors.lastname: Gross
mesh_terms: D000818:Animals; D001315:Australia; D001717:Birds; D016208:Databases, Factual; D005060:Europe; D030002:Heracleum; D006801:Humans; D058865:Introduced Species; D007564:Japan; D011821:Raccoons; D014481:United States