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1,700 animal species at greater extinction risk due to humans: Study

A study says that increased human land-use may put 1,700 species of amphibians, birds, and mammals at greater extinction risk over the next 50 years, by shrinking their natural habitats. The study, published in the journal Nature Climate Change, combined information on the current geographic distributions of about 19,400 species worldwide with changes to the land cover projected under four different trajectories.

The study shows that under a middle-of-the-road scenario of moderate changes in human land-use about 1,700 species will likely experience marked increases in their extinction risk over the next 50 years. These species of concern include 886 species of amphibians, 436 species of birds, and 376 species of mammals — all of which are predicted to have a high increase in their risk of extinction.

Among them are species whose fates will be particularly dire, such as the Lombok cross frog (Indonesia), the Nile lechwe (South Sudan), the pale-browed tree hunter (Brazil) and the curve-billed reedhaunter (Argentina, Brazil, Uruguay) which are all predicted to lose around half of their present-day geographic range in the next five decades.

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