Honolulu, Hawaiʻi, 4 September 2016 (IUCN) – The Eastern Gorilla – the largest living primate – has been listed as Critically Endangered due to illegal hunting, according to the latest update of The IUCN Red List of Threatened Species™ released today at the IUCN World Conservation Congress taking place in Hawaiʻi. Four out of six great ape species are now Critically Endangered – only one step away from going extinct – with the remaining two also under considerable threat of extinction.

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Mammals threatened by illegal hunting

The Eastern Gorilla (Gorilla beringei) – which is made up of two subspecies – has moved from Endangered to Critically Endangered due to a devastating population decline of more than 70% in 20 years. Its population is now estimated to be fewer than 5,000. Grauer’s Gorilla (G. b. graueri), one subspecies of Eastern Gorilla – has lost 77% of its population since 1994, declining from 16,900 individuals to just 3,800 in 2015. Killing or capture of great apes is illegal; yet hunting represents the greatest threat to Grauer’s Gorillas. The second subspecies of Eastern Gorilla – the Mountain Gorilla (G. b. beringei) –is faring better and has increased in number to around 880 individuals. Four of the six great apes – Eastern Gorilla, Western Gorilla, Bornean Orangutan and Sumatran Orangutan – are now listed as Critically Endangered, whilst the Chimpanzee and Bonobo are listed as Endangered.

“To see the Eastern gorilla – one of our closest cousins – slide towards extinction is truly distressing,” says Inger Andersen,IUCN Director General. “We live in a time of tremendous change and each IUCN Red List update makes us realize just how quickly the global extinction crisis is escalating. Conservation action does work and we have increasing evidence of it. It is our responsibility to enhance our efforts to turn the tide and protect the future of our planet.”

The once widespread and abundant Plains Zebra (Equus quagga) has moved from Least Concern to Near Threatened. The population has reduced by 24% in the past 14 years from around 660,000 to a current estimate of just over 500,000 animals. In many countries Plains Zebra are only found in protected areas, yet population reductions have been recorded in 10 out of the 17 range states since 1992. The Plains Zebra is threatened by hunting for bushmeat and skins, especially when they move out of protected areas.

Three species of antelope found in Africa – Bay Duiker (Cephalophus dorsalis), White-bellied Duiker (Cephalophus leucogaster) and Yellow-backed Duiker (Cephalophus silvicultor) – have moved from Least Concern to Near Threatened. Whilst the populations of these species within protected areas are relatively stable, those found in other areas are decreasing due to continued illegal hunting and habitat loss.

“Illegal hunting and habitat loss are still major threats driving many mammal species towards extinction,” says Carlo Rondinini, Coordinator of the mammal assessment at Sapienza University of Rome “We have now reassessed nearly half of all mammals. While there are some successes to celebrate, this new data must act as a beacon to guide the conservation of those species which continue to be under threat.”

Read the full article at https://www.iucn.org/news/four-out-six-great-apes-one-step-away-extinction-%E2%80%93-iucn-red-list