February 18, 2010
Experts release list of the world's top 25 most endangered primates.
"This report makes for very alarming reading and it underlines the extent of the danger facing many of the world’s primates," says report editor Dr Christoph Schwitzer, advisor to the IUCN/SSC Primate Specialist Group and Head of Research at the Bristol Conservation and Science Foundation. "We hope it will be effective in drawing attention to the plight of each of the 25 species included. Support and action to help save these species is vital if we are to avoid losing these wonderful animals forever."
Less than 100 Northern sportive lemurs (Lepilemur septentrionalis) survive in Madagascar. The species is threatened by charcoal collection and hunting. Primates in Peril: The World’s 25 Most Endangered Primates 2008–2010 has been compiled by the Primate Specialist Group of IUCN’s Species Survival Commission (SSC) and the International Primatological Society (IPS), in collaboration with Conservation International (CI). © CI/ photo by Russell A. Mittermeier.
The fact that one-fifth of the primates on the list are from Madagascar is noteworthy since the country is currently undergoing a logging and bushmeat crisis, largely unreported by the mainstream media. After a government coup in March of last year, Madagascar's world-renowned national parks were infiltrated by illegal loggers. Tens of thousands of hectares have been impacted and the resulting instability has caused a boom in lemur bushmeat hunting, where the rare animals are killed and then sold as meat in restaurants. All of Madagascar's primates on the list are lemurs: the greater bamboo lemur, the gray-headed lemur, Sclater's black lemur, northern sportive lemur, and the silky sifaka. The northern sportive lemur (Lepilemur septentrionalis) is the worst-off with a population estimated at less than 100. As the crisis continues, it is difficult to know just how these lemurs are faring amid the plunder.
Vietnam is also home to primates on the edge, including the golden headed langur (Trachypithecus p. poliocephalus), which is endemic to the island of Cat Ba in the Gulf of Tonkin. Primatologists say only 60-70 golden headed langurs survive. Also in Vietnam is the eastern black crested gibbons (Nomascus nasutus) with just over a hundred individuals. Almost half of the primates on the list (44 percent) are in Asia.
Popularity does not ensure a primate's survival. On the list is the Sumatran orangutan (Pongo abelii), which has suffered from deforestation and habitat loss for oil palm plantations and logging. Currently the Sumatran orangutan is listed as Critically Endangered by the IUCN Red List with a population estimated at 7,000 and dropping. Researchers say the Sumatran orangutan has lost over 80 percent of its population in 75 years.
Siau Island tarsier (Tarsius tumpara) is endemic to Siau Island, Indonesia and is threatened by habitat degradation and "hunting for snack food". Primates in Peril: The World’s 25 Most Endangered Primates 2008–2010 has been compiled by the Primate Specialist Group of IUCN’s Species Survival Commission (SSC) and the International Primatological Society (IPS), in collaboration with Conservation International (CI). © Geoff Deehan
"The purpose of our Top 25 list is to highlight those that are most at risk, to attract the attention of the public, to stimulate national governments to do more, and especially to find the resources to implement desperately-needed conservation measures," says Dr Russell Mittermeier, Chair of the IUCN/SSC Primate Specialist Group and President of Conservation International. "We want governments to commit to these measures when they gather in Japan in October."
A UN meeting on the extinction crisis is set for Nagoya, Japan this fall. 2010 is the UN International Year of Biodiversity in order to highlight the importance of the world's biodiversity. Eight years ago nations pledged that by this year they would achieve a 'significant reduction' in biodiversity loss. But if anything the extinction crisis is worse today than it was in 2002 with many ecologists stating that we are in the midst of a mass extinction.
Still there has been some positive news for primates over the past decade, especially in Brazil. Conservation efforts have brought back from the brink both the black lion tamarin (Leontopithecus chrysopygus) and the golden lion tamarin (Leontopithecus rosalia). While their populations remain small, targeted conservation efforts have stabilized them. Now reforestation efforts are needed to ensure their long-term survival. While these are just two positive examples out of several hundred gloomy ones, Mittermeier ensures us that we can learn—and hope—from the these successes.
"We have the resources to address this crisis, but so far, we have failed to act," he says.
The World’s 25 Most Endangered Primates: 2008–2010, by region:
Greater Bamboo Lemur (Prolemur simus)
Gray-headed Lemur (Eulemur cinereiceps)
Sclater’s Black Lemur/Blue-Eyed Black Lemur (Eulemur flavifrons)
Northern sportive lemur (Lepilemur septentrionalis)
Silky Sifaka (Propithecus candidus)
Rondo Dwarf Galago (Galagoides rondoensis)
Roloway Guenon (Cercopithecus diana roloway)
Tana River Red Colobus (Procolobus rufomitratus)
Niger Delta Red Colobus Monkey (Procolobus epieni)
Kipunji (Rungwecebus kipunji)
Cross River Gorilla (Gorilla gorilla diehli)
Siau Island Tarsier (Tarsius tumpara)
Javan Slow Loris (Nycticebus javanicus)
Simakobu or Pig-Tailed Snub-Nose Langur (Simias concolor)
Delacour’s Langur (Trachypithecus delacouri)
Golden-headed Langur or Cat Ba Langur (Trachypithecus p. poliocephalus)
Western Purple-faced Langur Trachypithecus (Semnopithecus vetulus nestor)
Grey-shanked Douc Monkey (Pygathrix cinerea)
Tonkin Snub-nosed Monkey (Rhinopithecus avunculus)
Eastern Black Crested Gibbon (Nomascus nasutus)
Western Hoolock Gibbon (Hoolock hoolock)
Sumatran Orangutan (Pongo abelii)
Central and South America
Cotton-top Tamarin (Saguinus oedipus)
Variegated or Brown Spider Monkey (Ateles hybridus)
Peruvian Yellow-tailed Woolly Monkey (Oreonax flavicauda)
Peruvian yellow-tailed woolly monkey (Oreonax flavicauda)is threatened by deforestation and hunting. Primates in Peril: The World’s 25 Most Endangered Primates 2008–2010 has been compiled by the Primate Specialist Group of IUCN’s Species Survival Commission (SSC) and the International Primatological Society (IPS), in collaboration with Conservation International (CI). © CI/photo by Stephen D. Nash.
Sclater’s lemurs (Eulemur flavifrons) in Madagascar are threatened by forest loss, hunting, and capture for the pet trade. Primates in Peril: The World’s 25 Most Endangered Primates 2008–2010 has been compiled by the Primate Specialist Group of IUCN’s Species Survival Commission (SSC) and the International Primatological Society (IPS), in collaboration with Conservation International (CI). © CI/photo by Russell A. Mittermeier.
Cotton-top tamarin (Saguinus oedipus) in Colombia. Once captured for biomedical research, this species is now threatened by forest loss for farming, oil palm plantations, cattle, hydroelectric projects, and logging. It is also a victim of the pet trade. Primates in Peril: The World’s 25 Most Endangered Primates 2008–2010 has been compiled by the Primate Specialist Group of IUCN’s Species Survival Commission (SSC) and the International Primatological Society (IPS), in collaboration with Conservation International (CI). © CI/photo by Russell A. Mittermeier.
The Sumatran orangutan is threatened by an increasingly restricted and fragmented range due to forest loss for oil palm plantations, agriculture, logging, and roads. Orangutans are also sometimes killed as pests and even for food. Photo by: Rhett A. Butler.
Coup leaders sell out Madagascar's forests, people
(01/27/2010) Madagascar is renowned for its biological richness. Located off the eastern coast of southern Africa and slightly larger than California, the island has an eclectic collection of plants and animals, more than 80 percent of which are found nowhere else in the world. But Madagascar's biological bounty has been under siege for nearly a year in the aftermath of a political crisis which saw its president chased into exile at gunpoint; a collapse in its civil service, including its park management system; and evaporation of donor funds which provide half the government's annual budget. In the absence of governance, organized gangs ransacked the island's biological treasures, including precious hardwoods and endangered lemurs from protected rainforests, and frightened away tourists, who provide a critical economic incentive for conservation. Now, as the coup leaders take an increasingly active role in the plunder as a means to finance an upcoming election they hope will legitimize their power grab, the question becomes whether Madagascar’s once highly regarded conservation system can be restored and maintained.
World's rarest gorilla caught on film
(12/16/2009) The first ever professional footage of the world's rarest gorilla, the Cross River gorilla ( Gorilla gorilla diehli), has been shot deep in the forested mountains of Cameroon. The only other existing footage of this Critically Endangered subspecies was taken from far away by a field researcher in 2005.
What types of primates are most prone to extinction in small forest fragments?
(12/06/2009) According to the most recent IUCN assessment, 48 percent of primates are threatened with extinction. Major threats to primates include habitat loss and fragmentation, hunting, and the wildlife trade. A new paper published in Tropical Conservation Science looked at ones of these threats — fragmentation — in an effort to determine what traits put primates at highest risk of extinction in forest fragments. Traits investigated all related to various aspects of primate biology, including: the amount of habitat needed, reproductive rate, and types of specialization. Surprisingly the authors, Matthew A. Gibbons and Alexander H. Harcourt of the University of California at Davis, found no significant relationship between extinction risk and any of the biological parameters.
Good news for the rarest lemur
(10/07/2009) A scientific expedition has found one of the Madagascar's rarest lemurs in a region where it was once thought to be extinct, report conservationists.
Two of the world's most endangered (and strangest) primates receive protection from new reserves in China and Vietnam
(09/24/2009) There are 200 Tonkin snub-nosed monkeys left in the world. The cao vit gibbon, however, is even worse off with only 110 individuals remaining, giving it the dubious honor of being the second most endangered primate in the world (the closely-related Hainan gibbon with only 17 individuals is likely number one). Both of these species—the cao vit gibbon and Tonkin snub nosed monkey—have received good news recently as new reserves in China and Vietnam have been created in part to aid their survival.
Palm oil both a leading threat to orangutans and a key source of jobs in Sumatra
(09/24/2009) Of the world's two species of orangutan, a great ape that shares 96 percent of man's genetic makeup, the Sumatran orangutan is considerably more endangered than its cousin in Borneo. Today there are believed to be fewer than 7,000 Sumatran orangutans in the wild, a consequence of the wildlife trade, hunting, and accelerating destruction of their native forest habitat by loggers, small-scale farmers, and agribusiness. Gunung Leuser National Park in North Sumatra is one of the last strongholds for the species, serving as a refuge among paper pulp concessions and rubber and oil palm plantations. While orangutans are relatively well protected in areas around tourist centers, they are affected by poorly regulated interactions with tourists, which have increased the risk of disease and resulted in high mortality rates among infants near tourist centers like Bukit Lawang. Further, orangutans that range outside the park or live in remote areas or on its margins face conflicts with developers, including loggers, who may or may not know about the existence of the park, and plantation workers, who may kill any orangutans they encounter in the fields. Working to improve the fate of orangutans that find their way into plantations and unprotected community areas is the Orangutan Information Center (OIC), a local NGO that collaborates with the Sumatran Orangutan Society (SOS).
'Greening' logging concessions could help save great apes
(09/17/2009) Promoting reduced impact logging in forest areas already under concession could help protect populations of endangered great apes, argues a new report published by WWF.
20,000 orangutans killed or poached in 10 years without a single prosecution
(08/24/2009) At least 20,000 orangutans have been killed or captured for the illegal pet trade in the past ten years in Indonesia without a single prosecution, according to a report published by Nature Alert and the Centre for Orangutan Protection, groups that campaign on behalf of orangutans.
Destruction worsens in Madagascar
(08/20/2009) Armed bands are decimating rainforest reserves in northeastern Madagascar, killing lemurs and intimidating conservation workers, despite widespread condemnation by international environmental groups.
Rehabilitation not enough to solve orangutan crisis in Indonesia
(08/20/2009) A baby orangutan ambles across the grass at the Borneo Orangutan Survival Foundation’s Nyaru Menteng rehabilitation center in Central Kalimantan, in the heart of Indonesian Borneo. The ape pauses, picks up a stick and makes his way over to a plastic log, lined with small holes. Breaking the stick in two, he pokes one end into a hole in an effort to extract honey that has been deposited by a conservation worker. His expression shows the tool’s use has been fruitful. But he is not alone. To his right another orangutan has turned half a coconut shell into a helmet, two others wrestle on the lawn, and another youngster scales a papaya tree. There are dozens of orangutans, all of which are about the same age. Just outside the compound, dozens of younger orangutans are getting climbing lessons from the Borneo Orangutan Survival Foundation (BOS) staff, while still younger orangutans are being fed milk from bottles in a nearby nursery. Still more orangutans—teenagers and adults—can be found on “Orangutan Island” beyond the center’s main grounds. Meanwhile several recently wild orangutans sit in cages. This is a waiting game. BOS hopes to eventually release all of these orangutans back into their natural habitat—the majestic rainforests and swampy peatlands of Central Kalimantan, on the island of Borneo. But for many, this is a fate that may never be realized.
Golden lion tamarins play key role in seed dispersal in Brazil's Mata Atlantica
(08/10/2009) Golden lion tamarins play an important role in seed dispersal in Brazil's Mata Atlantica, report researchers writing in the the journal Tropical Conservation Science.
APP, Sinar Mas plan to log habitat of critically endangered orangutans
(05/20/2009) Asia Pulp & Paper and Sinar Mas Group have acquired a license to clear hundreds of hectares of unprotected rainforest near Bukit Tigapuluh National Park on the Indonesian island of Sumatra, report environmental groups who say the activity threatens a population of critically endangered orangutans that have been re-introduced into the wild. The companies intend to log the concession for timber and plant it for industrial timber and oil palm plantations.