![]() Only 201 of the birds are old enough to breed in the wild and they are exclusively found in Arizona and southern California, resulting in a critically endangered classification on the IUCN’s red list. Researchers point to the example of the California condor. Included are the pink pigeon, found in Mauritius, the grey wolf and the Kandelia obovata mangrove in east Asia.īy analysing a species’ historical population size, present-day distribution, the success of previous conservation efforts and viable habitat, the new standard will allow researchers to plot a path to recovery for some of the one million species threatened with extinction on Earth, largely through human activities. The first assessments for 181 species have been published in the journal Conservation Biology. More than 200 scientists representing 171 institutions have spent 10 years working towards the new measure. Photograph: TokioMarineLife/ Getty Images Shimajiri Mangrove forest on Miyako island, Japan, home to green status Kandelia obovata mangrove trees.
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