Invasive alien species may be a bigger threat to natural World Heritage than previously thought

A new paper indicates that impacts on natural World Heritage sites from invasive alien species, such as house mice, Argentine ants and rainbow trout, may be greater than previously assessed. It presents results of a proposed framework tested in seven affected sites, recording the presence of more invasive alien species in almost all cases. The authors, a team of international scientists including from IUCN, call for improved monitoring and reporting as a first step towards more effective protection.

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