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Biological annihilation via the ongoing sixth mass extinction signaled by vertebrate population losses and declines [PNAS]

Keywords : sixth mass extinction, population declines, population extinctions, conservation, ecosystem service

par Frédéric Magné - publié le

The population extinction pulse we describe here shows, from a quantitative viewpoint, that Earth’s sixth mass extinction is more severe than perceived when looking exclusively at species extinctions. Therefore, humanity needs to address anthropogenic population extirpation and decimation immediately. That conclusion is based on analyses of the numbers and degrees of range contraction (indicative of population shrinkage and/or population extinctions according to the International Union for Conservation of Nature) using a sample of 27,600 vertebrate species, and on a more detailed analysis documenting the population extinctions between 1900 and 2015 in 177 mammal species.(...)

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