How Many Sumatran Orangutans Are Left In The Wild

How Many Sumatran Orangutans Are Left In The Wild – Orangutan populations have halved in the past 16 years, and researchers say the great apes are likely to become extinct if nothing changes.

A study published on Friday found that the population of Thepes in Borneo has fallen by more than 100,000 in 16 years, with a “high probability” that the orangutans will become extinct if current trends continue.

How Many Sumatran Orangutans Are Left In The Wild

How Many Sumatran Orangutans Are Left In The Wild

The most extensive study since 1999 was carried out by the Max Planck Institute for Evolutionary Anthropology in the German city of Leipzig and other centers. The decline has been greatest in island Southeast Asia where tropical forests have been cleared to make way for timber and palm oil plantations, shrinking forest monkey habitat. Other main reasons were “conflict killing, hunting and collection of baby orangutans for the pet trade,” the study authors said.

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They also found that the monkeys, known for their wide faces and dark brown fur, may survive better than expected in small forests and fragmented landscapes because they walk on the ground more often what researchers understood. This allows them to survive on plants that are not part of their natural diet.

“One thing they cannot deal with, however, is the high rate of killing,” said Serge Wiech, a scientist.

“The orangutan is a very slow breeding species. If one in 100 adult orangutans are removed from the population each year, this population is likely to become extinct.”

Researchers estimate that Borneo’s orangutan population is currently between 75,000 and 100,000 – a decline of more than 50 percent since the study period began. This fall is consistent with the 2016 designation of orangutans as critically endangered by the International Union for Conservation of Nature (IUCN).

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The IUCN estimates that the number of orangutans could decrease to around 47,000 by 2025 from an estimated population of 105,000 in 2016. The World Wide Fund for Nature (WWF) estimates that 104,700 Bornean orangutans left in the world. Researchers have found that Sumatran orangutans are about 2.2 times more numerous than previously thought, but the species is still threatened by poachers. Photo: Romeo Gacade/AFP/Getty Images

Twice as many Sumatran orangutans live than previously thought, but not outside the critically endangered Great Ape Forest, researchers who conducted the groundbreaking study say.

Loss of forest habitat is the biggest threat to Sumatran orangutans, followed by illegal pet trade and poaching. Land fires that were illegally cleared for conversion to palm oil plantations continue to burn across Indonesia, destroying some of the remaining orangutan habitat.

How Many Sumatran Orangutans Are Left In The Wild

“The probability of zero [Sumatra orangutans] in the near future is very low now,” said lead author Serge Wych of Liverpool John Moores University in the UK.

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Wich and colleagues estimated that about 14,600 lived in the country, compared to 6,600 Wich and colleagues estimated in 2008.

Previous estimates suggested the population has declined by 80% over the past 75 years, and Wich said the new findings won’t significantly change that figure.

“There has been so much deforestation in Sumatra over the last few decades that the population will [almost] decrease even if it is still a little low.”

He said it is important to understand that this does not mean that the population will increase. Instead, the new study took a closer look at places where orangutans were not previously thought to live.

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They studied an area of ​​Sumatra 1,500 meters above sea level, where previous studies assumed that orangutans would not live higher than 900 meters. They also saw areas that had already been cordoned off and were surprised to see some orangutans reclaiming their territory. Finally, they explored areas further west, where orangutan populations have recently been discovered.

The authors concluded that previous estimates “theoretically underestimated” the animal’s range, now estimated to be 2.56 times larger than previously thought.

But with more orangutans, there was more to lose. Modeling the future impact of deforestation, the researchers found that around 4,500 people could be lost by 2030.

How Many Sumatran Orangutans Are Left In The Wild

But Wich warned that saving the Sumatran orangutan isn’t just about avoiding an entire species.

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“All orangutans are not the same,” he said. different, and different rich cultures in other behaviors. If we lose orangutans in, say, wetlands, we will lose most of the tool-using culture of the Sumatran orangutan.”

He said the discovery that Sumatran orangutans lived at high altitude opened up the promise of new exciting discoveries. Preliminary observations suggested that these orangutans had a different diet, eating plants than low orangutans. And they used tools differently, Weich said. “Some cultural behaviors are unique.”

Orangutans appear to live in forests affected by logging, suggesting they may be more resistant to human impact than previously thought.

Ki said the new population estimate is unlikely to change the conservation status of the animals, which are listed by the International Union for Conservation of Nature as “critically endangered”.

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“If we look at the forests that have been registered, the reduction in their numbers is still enough to be in serious danger,” he said.

“There is a rule that there should be no forest clearing if the peat is deeper than 3 meters, but it still happens,” he said. “And deforestation should not be above a certain foot on the slopes but it is still happening. And there is deforestation in protected areas as well.”

He said roads through orangutan habitat should be closed where possible, as illegal clearing often occurs around roads.

How Many Sumatran Orangutans Are Left In The Wild

But he agreed that the research results were good news. “It gives us, in a way, a little more time for us to try to implement conservation strategies.”

How The Spectacular Sumatran Orangutan Is Essential To Its Ecosystem

The Sumatran orangutan is one of two different species. There are about 50,000 or 60,000 Bornean orangutans. Sumatran orangutans have long, pale fur and relatively long faces. Orangutans are the only great apes living in Asia besides humans.

Orangutans spend most of their time in trees, moving between them and moving around the forest. They are the largest arboreal animals in the world. The Sumatran orangutan (Pongo abelli) is one of three species of orangutan. Critically endangered, and found only in the northern Indonesian island of Sumatra, it is rarer than the Bornean orangutan but more common than the Tapanuli orangutan found in Sumatra. The common name is of Malay origin, based on two different local words, “orang” (“man” or “man”) and “hutan” (“forest”).

Male Sumatran orangutans grow to about 1.7 meters (5.6 ft) in length and up to 90 kg (200 lb), while females are smaller, averaging 90 cm (3.0 ft) and 45 kg (99 lb). Compared to Bornean species, Sumatran orangutans are thinner and have longer faces; The hair is long and pale red in color.

The orangutan breaks a branch of a tree about a foot high, plucks off the branches, and tears it with his teeth.

Bino, A Three Month Old Sumatran Orangutan, Is Carried By His 14 Year Old Mother Chomel At The Singapore Zoo On Tuesday, April 5, 2011 In Singapore Which Is Actively Involved In The Conservation And Education

Orangutans use sticks to dig holes in trees. They use sticks to penetrate the walls of the nose, twist it and grab the honey. Orangutans also use tools to eat fruit.

When the fruit of the Nicia tree is plucked, its hard, moist husk softens until it falls off. Inside are seeds that orangutans like to eat, but they are surrounded by glass hairs that are painful to eat. Tools are designed differently for different uses. The sticks are often lengthened or shortened depending on whether they are to be used for insects or fruit.

If a particular tool is useful, the orangutans often save it. Over time, they will accumulate a rubber “toolbox”.

How Many Sumatran Orangutans Are Left In The Wild

An orangutan that eats a nysia will pick a five-inch stick, peel off the bark and carefully collect the hair with it. Once the fruit is secured, the monkey eats the seeds with sticks or fingers. Although similar swamps are found in Borneo, wild Bornean orangutans did not use these tools.

Meet Our Animals

Filming Sumatran orangutans for the NHNZ Wild Asia: In the Realm of the Red Ape exhibition; It shows one of them using a simple tool, a stick, to get food out of a difficult place. A series of animals use a large leaf as an umbrella in a tropical storm.

In addition to being used as tools, tree branches are a means of transportation for Sumatran orangutans. Orangutans are the heaviest tree-dwelling mammals, making them particularly sensitive to changes in arboreal compliance. To counter this, movements are characterized by slow speed, long contact times, and an impressive range of large locomotor positions. Orangutans have been shown to use support on vertical supports to reduce the cost of locomotion when moving back and forth on trees, and have a unique locomotion strategy, moving slowly and ‘ the use of multiple supports to prevent swinging on compliant branches, especially at the ends.

Sumatran orangutan

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