Read more about the article Getting a handle on biological invasions around the world — the species, the impacts and the responses
Examples of Critically Endangered birds threatened by IAS include (from left to right): the Juan Fernández Firecrown (Sephanoides fernandensis) threatened by a range of introduced plant and animal IAS on Isla Robinson Crusoe, Juan Fernÿndez Islands, Chile (Credit: Rare Birds Yearbook/Peter Hodum); the Polynesian Ground-dove (Gallicolumba erythroptera) threatened by cats and rats on islands in French Polynesia (Credit: Rare Birds Yearbook/Pete Morris); the Akohekohe (Palmeria dolei), threatened by introduced disease-carrying mosquitoes on Maui, Hawaii (Credit: Rare Birds Yearbook/Aaron French). (Cover design: K. Coombe-Davis).

Getting a handle on biological invasions around the world — the species, the impacts and the responses

Invasive alien species are generally accepted as being one of the top three threats to biodiversity worldwide, but until now there has been no metric for assessing the magnitude problem globally, its impact and our responses to it.

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