Biological invasions occur when organisms such as animals and plants are introduced by people to regions of the world where they do not naturally occur. In these new locations, these organisms are ...

Alien plants and animals cost Europe over $1.5 trillion in the last six decades, according to a new study, indicating the global economic impact of such species could be several times higher than ...

Increases in global trade and travel are causing animal and plant species to be more frequently introduced to regions of the ...

WARSAW, Poland (AP) — A respected Polish scientific institute has classified domestic cats as an “invasive alien species,” citing the damage they cause to birds and other wildlife. Some cat lovers ...

The new rules designate cats including servals, ocelots and European and African wildcats as controlled alien species.

Introduction: Nonnative species in the world / David Pimentel -- The impacts of alien plants in Australia / Richard H. Groves -- Environmental and economic costs of invertebrate invasions in Australia ...