27/11/2017

New Report Reveals 25 of the World’s Most Endangered Primates

Many of mankind’s closest living relatives – the world’s apes, monkeys, lemurs and other primates – are on the brink of extinction and in need of urgent help, conservationists have warned.

Their findings have been revealed in a new report: Primates in Peril: The World’s 25 Most Endangered Primates, 2016–2018. The report, which is updated every two years, was launched at the Primate Society of Great Britain’s 50th anniversary conference in London today (November 28).

The lead editor is Dr Christoph Schwitzer, director of conservation at Bristol Zoological Society and deputy chair of the IUCN SSC Primate Specialist Group.

Dr Schwitzer said: “This report makes for alarming reading, it is vital that we use it to highlight the desperate conservation need for so many primate species, many of which are on the very brink of being lost to extinction.

“We hope it will draw attention to the plight of each of the 25 highlighted species. Support and conservation action to help save them is vital if we are to avoid losing these wonderful and charismatic animals forever. “

The report reveals the bleak prospects of some well-known and other less well-known and unusual species that are in danger of extinction from the relentless destruction of their habitats, illegal wildlife trade and commercial bushmeat hunting.

The list of 25 of the most endangered primate species includes:

·         Six lemurs from Madagascar, ranging from a tiny mouse lemur, the recently described James’ sportive lemur now reduced to just a handful of individuals, to the strangest primate of all, the remarkable aye-aye.

·         Five species from Africa, including a dwarf galago, three monkeys, and Grauer’s gorilla, a close relation of the mountain gorilla, which has undergone a rapid and especially severe decline in recent years as the result of hunting in the forests of the Democratic Republic of Congo.

·         Nine species from Asia, including the crested macaque, the golden snub-nosed monkey from China, four langurs - including the golden langur from northeast India and Bhutan and the 50 or so golden-headed langurs on the island of Cat Ba in Ha Long Bay, North Vietnam - and two apes, the Bornean orangutan and the Hainan gibbon, the latter reduced to about 30 individuals on the island of Hainan, China.

·         Five species from the Neotropics (Mexico, Central and South America): the Ka’apor capuchin, which is suffering widespread destruction of its forests in the western Amazon; a howler monkey from Brazil’s Atlantic coastal forest; two spider monkeys from the northern Neotropics; and the only-recently described Caquetá titi from the Colombian Amazon.

The Bornean orangutan appears on this list for the first time with dramatic population declines over the past 50 years, the result of widespread forest fragmentation and loss from forest fires, and the conversion of its forests to oil palm plantations.

Since this list was compiled, researchers have described a new, third, species of orangutan, the Tapanuli orangutan from Sumatra. With about 800 left, this species is certain to appear on the next list of the 25 most endangered species.

The report also includes the well-known and loved ring-tailed lemur, which was estimated to number several hundreds of thousands two decades ago, but could now be down to the very low thousands because of the illegal pet trade and the loss of their forest habitat in Madagascar.

“Primates are a prominent and essential component of a very large part of the world’s tropical forests and savannahs,” said Anthony Rylands, deputy chair of the IUCN SSC Primate Specialist Group, and recently appointed primate conservation director of Global Wildlife Conservation.

“We are only now beginning to understand their diversity and their ecological role in these extraordinarily rich and complex environments, yet hunting and the degradation, fragmentation and loss of their habitats is devastating their populations worldwide - more than half of all primates are now threatened. This report draws attention to the severity of the situation for just a few of those most endangered.”

Dr Russell Mittermeier, former president of Conservation International and incoming chief conservation officer at Global Wildlife Conservation, has long chaired  the IUCN Species Survival Commission’s Primate Specialist Group. He said: “Nonhuman primates are the most endangered larger group of mammals and one of the most endangered larger groups of vertebrates overall. If you took all the remaining individuals of the 25 Most Endangered Primates list, you wouldn’t fill the seating of a large football stadium.”

Sixty-two per cent of the world’s 702 primate species and subspecies are considered threatened, and 42 percent are listed as Critically Endangered or Endangered, some of which are down to a few dozen or a few hundred individuals.

Dr Schwitzer added: “This report demonstrates the growing importance of collaboration between the international conservation, scientific and zoo communities in the protection of species and habitats. Bristol Zoological Society, for example, works closely with other conservation organisations and zoos to increase our understanding of the ecology, behaviour and conservation status of many highly threatened species and conserve them in the wild.”

Primatologists discussed the conservation status of the world’s primates at the 26th Congress of International Primatological Society in Chicago in 2016. The list of 25 most endangered species is the result of a meeting of numerous primatologists there, who work in the field and have first-hand knowledge of the plight of primates worldwide.

Primates in Peril: The World’s 25 Most Endangered Primates, 2016–2018 is a joint effort by Bristol Zoological Society, Global Wildlife Conservation, the Primate Specialist Group of the International Union for Conservation of Nature (IUCN), Conservation International and the International Primatological Society (IPS).

 

 

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