When on the move, the group is led by adult males, with juvenile males bringing up the rear and the females and infants staying safe in the middle. Given patterns of survey, it is possible that it occurs, or occurred in the recent past, to altitudes considerably above 1,700 m. Cambodia, Lao People's Democratic Republic, Viet Nam. Its tail – 60cm long and ringed in black and white – is longer than its body. The target species, the red-shanked douc (Pygathrix nemaeus) is classified as Endangered under the IUCN red list of threatened species criteria A2cd+3cd+4cd; its global population is thought to have declined by over 50% in the past 30-40 years (=three generations), a trend predicted to continue (Vu Ngoc Thanh et al., 2008). It eats peacefully together, not quarreling over food, and has been known to share it with others. However, a population of about 200 individuals, from 12 different groups, currently live at Vietnam’s Son Tra Nature Reserve. It is classified as Endangered by IUCN, and is believed to have experienced a major drop of more than 50% of its population over the last 40 years. In Viet Nam Red-shanked Douc ranges from Pu Mat National Park (NP) (19°02’N) in the north to Chu Mom Ray NP (14°22’N) in the south (Ha Thang Long 2007, 2009). They are only found in North and Central Vietnam and Laos. They occasionally get on the ground to drink water or eat dirt that contains minerals. A fixed stare is a threat display. 2009). Red-Shanked Douc Langurs occur in subtropical and tropical broadleaf evergreen or semi-deciduous forests and to a lesser extent in secondary evergreen and mixed bamboo forests. Its face is almost doll-like, with a permanent serene expression. A wide black band stretches across the monkey’s forehead. However, a population of about 200 individuals, from 12 different groups, currently live at Vietnam’s Son Tra Nature Reserve. 2020) Pygathrix nemaeus (red-shanked douc langur) Population trend: decreasing (Coudrat et al. 2015). The total population is unknown, however, the population in Laos is believed to be large and more stable than in Vietnam. In one study, an orphaned infant was fed by two females in the group and also cared for by a male. To protect the Douc Langur and their wild habitat to ensure that they will survive in their home range for future generations. Pygathrix. Populations of all 3 species … The individuals observed showed some facial characteristics of Red-shanked Douc, but were otherwise not typical of Red-shanked Douc morphologically (e.g., lacking red on the legs, lacking white on the forearms, mostly uniformly grey body but with some variations observed between individuals); some DNA (mitochondrial, autosomal and sex chromosome fragments) was extracted from faecal samples collected following the 2007-sighting, which indicated closest similarity to Red-shanked Douc (Rawson and Roos 2008). The population in SÆ¡n Trà Nature Reserve may represent at least 60% of all Red-shanked Doucs in Vietnam [1]. Population and Distribution The grey-shanked douc langur is critically endangered with a population estimated to be around 550-700, The red-shanked douc langur and the black-shanked langur are both endangered. Population Information The largest known population exists in Seima Biodiversity Conservation Area, Mondulkiri Province, Cambodia, where distance estimates provide a population estimate of approximately 42,000 individuals (95% confidence interval of 27,309–66,460) (Pollard et al. The grey-shanked douc langur is critically endangered with a population estimated to be around 550-700, The red-shanked douc langur and the black-shanked langur are both endangered. A volunteer group with about 30 members will volunteer to observe and report information about the Red-shanked douc langur population in Son Tra peninsula. They are considered “Queen of primates” thanks to their distinctive and unique appearance. There is no official number for red-shanked douc langurs in Vietnam, but the Son Tra Peninsula in Da Nang houses the biggest population of this endangered species in the nation. 2007; Lippold and Vu Ngoc Thanh 2008; Dinh Thi Phuong Anh et al. It has a specific play face with the mouth open, teeth partially bared and chin thrust forward. As a result, the IUCN currently lists it as Endangered. In Lao PDR, several sites that were visited in the mid-1990s and then again in the 2000s and 2010s suggest a surprising decline in Red-shanked Doucs (Coudrat et al. By contrast, Vietnam’s red-shanked douc langur population is smaller, having suffered significant decline due to years of human-caused destruction. 2007). It is classified as Endangered by IUCN, and is believed to have experienced a major drop of more than 50% of its population over the last 40 years. Laos today represents the best hope for the conservation of the red-shanked douc (Coudrat et al., 2012; Coudrat et al., 2013). Locomotion Quadrupedal movement through trees; infrequently "swing" from tree to tree. CONFERENCE ANNOUNCES LATEST FINDINGS ON RED-SHANKED DOUC LANGUR BY GREENVIET. It prefers to eat small, young and tender leaves, but will also eat fruit like figs, buds, petioles, flowers, bamboo shoots and seeds. … The red-shanked douc is native to Indochina; Vietnam, southern Laos and possibly northeastern Cambodia. Philadelphia Zoo). In both these areas the population is considered large based on frequent encounters (Rawson 2010). It has saved most of red-shanked doucs in danger of extinction. Before mating, both genders give a sexual signal with the jaw forward, eyebrows raised and then lowered, and a head-shake. Halfway between SÆ¡n Trà and Đà Nẵng city, on the road running along the beach, is a long, long line of seafood stalls. The IUCN SSC Asian Species Action Partnership (ASAP) is an initiative aimed at reversing the declines in the wild of Species On The Brink of extinction – Critically Endangered land and freshwater vertebrates in Southeast Asia. This unfortunate status appears on the organization’s Red List of Threatened Species. Across its range, the species’ typical pelage characteristics are somewhat lost gradually from north to south: in southern Lao PDR, some individuals have also been observed with reduced red on the legs and white on the forearms (Timmins and Duckworth 1999). The beautiful red-shanked douc langur is only found in north and central Vietnam and Laos. This douc is an aerial specialist, moving high up in the canopy. They are only found in North and Central Vietnam and Laos. The most common reason is that they are hunted for substance use and traditional medicine. Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species. The Langurs are listed as critically endangered by the International Union for Conservation of Nature (IUCN). Wildlife surveys found <30 individuals in Bach Ma NP (Le Thi Dien et al. It is an arboreal and diurnal monkey that eats and sleeps in the trees of the forest. species of “Doucs”: red-shanked douc langur (Pygathrix nemaeus), black-shanked douc langur (P. nigripes)and grey-shanked douc langur (P. cinerea). Currently, this species is classified as Endangered (EN) on the IUCN Red List and its … 2013). The Red-shanked douc, sometimes referred to as the â€⃜costumed ape’, is one of the most colourful primates. The Lao population is highly threatened. All rights reserved. The red-shanked douc lives in forests ... Vietnam, the population is approximately 1300 individuals. Red-shanked Douc Langur. Locomotion Quadrupedal movement through trees; infrequently "swing" from tree to tree. 2012). It gets all the liquid and protein it needs from the food it eats and doesn't need to descend to the ground to drink. It is classified as Endangered by … The largest population of Red-Shanked Doucs are in Son Tra Nature Reserve and are estimated to be around 1300 individuals. The red-shanked douc has a low-pitched growl that is given as a threat, and a short, harsh distress squeal. A red-shanked Douc langur. Experts now say that as much as 70% of the Red-shanked Douc population has been lost in a span of just 30 years (this is a revision of the estimate provided on the IUCN Red List). Adult red-shanked doucs can jump as far as seven metres, proof of their strength and acrobatic finesse. Son Tra Penisula was seen as one of the most special places with Red-shanked Douc researchers, Doucs in here have a great number in a small 60 km2 living area and easily to be watched as they aren’t sensitive with the human’s appearance. The Red-shanked Douc (Pygathrix nemaeus) is the only douc species recorded in all three countries of Indochina. Douc langurs are found in Southeast Asian countries of Cambodia, Laos and Vietnam. Their forearms are white, upper legs black to grey and the lower legs a deep red while hands and feet are black. 2010). Like all other Old World monkeys, its tail is not prehensile. 2013). The red-shanked douc is the northern variant of douc langur and is characterized by red lower legs, a light yellow face, and white forearms. It does not have cheek pouches. In contrast to their noisy travel, doucs spend most of their time quietly eating, digesting their bulky food, dozing and grooming each other's fur. In response to the World’s Biological Diversity Day (22/5), Danang Union of Science and Technology and GreenViet hold a conference on “Research findings on current population of the red-shanked douc langur and conservation solutions in Son Tra”. According to the most recent assessment of IIUCN Red List, the red-shanked douc is critically endangered. Mother and cub Living area of the Red Shanked Douc – Redlist. This is estimated at only about 200 individuals (Vu Ngoc Thanh et al. The target species, the red-shanked douc (Pygathrix nemaeus) is classified as Endangered under the IUCN red list of threatened species criteria A2cd+3cd+4cd; its global population is thought to have declined by over 50% in the past 30-40 years (=three generations), a trend predicted to continue (Vu Ngoc Thanh et al., 2008). It is also used to initiate grooming or play. 2020) Pygathrix nemaeus (red-shanked douc langur) Population trend: decreasing (Coudrat et al. The Red-Shanked Douc langur is endangered in Southeast Asia. The IUCN Red List and other sources don’t provide the number of the Red-shanked douc total population size. Rangers at the Ba Na – Nui Chua Nature Reserve forest have found three new types of red-shanked douc langurs during the first days of 2021, according to VN Express. 2012, Gray et al. Between 8 and 24 months of age, the colors of the fur and face have changed gradually to form colors of the mature one. It is known for its colorful fur. The red-shanked douc (Pygathrix nemaeus) is a species of Old World monkey, among the most colourful of all primates. When the group is untroubled, the red-shanked douc will move noisily from branch to branch through the forest, crashing through foliage, swinging under branches and leaping with two feet together, displaying its remarkable sense of balance. Local people often hunt the species for food, pets or making glue. 2003). However, there is a relatively substantial population housed at the EPRC. comm. The current population of doucs at Son Tra numbers about 1,300 and zoologists say they have the most beautiful colours of their species. In Lao PDR, the species is hunted by both Lao and Vietnamese poachers crossing the border. In captivity, other group members may look after an infant, and other females may even suckle it. Often, it will share the same clump of foliage and may even break pieces off and hand them to each other, a type of active generosity that is rare among Old World monkeys. The young are born with their eyes wide open and they cling to their mothers instinctively. Decreasing. Black-shanked douc langur much more abundant than gray-shanked and red-shanked douc langur. Laos today represents the best hope for the conservation of the red-shanked douc (Coudrat et al., 2012; Coudrat et al., 2013). The three species of douc are endemic to Indochina (Vietnam, Lao PDR and Cambodia), which means that they are found nowhere else on earth. Its forearms are white from the elbow to the wrist. HABITAT AND ECOLOGY. A group usually consists of one or more males and approximately two females per male. In Lao PDR: Nakai-Nam Theun NPA; Hin Namno NPA; Laving–Laveun NPA; corridors between Xe Pian-Dong Ampham and Dong Ampham-Xe Sap NPAs; Xe Sap NPA; Koung Xe Nongma Provincial Protected Area. Vietnam’s population of black-shanked douc langurs (along with red-shanked and gray-shanked douc langurs) suffered a decline resulting from the Vietnam War. Lao hunters often sell poached doucs to Vietnamese. 2020) In addition to having their habitat extensively bombed and sprayed with the toxic defoliant known as Agent Orange, soldiers used the monkeys for target practice. Black-shanked doucs are native to northeast Cambodia and southern Vietnam and unlike their red-shanked counterparts, are able to survive in small, fragmented forests. 2012; Gray et al. Habitat loss and fragmentation have led to an increase in access to remote forests for illegal hunting of the species, contributing to the alarming declines of the global population. The total population is unknown, however, the population in Laos is believed to be large and more stable than in Vietnam. Its yellow face is flanked with a bright white beard and it appears as if it is wearing white gloves and orange stockings. According to Wikipedia in Son Tra (Vietnam), the douc population is around 1300 individuals. Douc Langur Foundation. The pregnancy lasts between 165 and 190 days, resulting in the birth of a single offspring just before fruiting season of some favorite foods. To protect the Douc Langur and their wild habitat to ensure that they will survive in their home range for future generations. [3] Males of all ages have a white spot on both sides of the corners of the rump patch, and red and white genitals. They live in groups with an average size of 4 to 15, but groups of up to 50 have been recorded. 2011). Douc Langur Foundation. In Vietnam, the present range of the red-shanked douc langur occurs between 18°29′N and 14°21′N (Lippold 1977, 1995, 1998; Lippold and Vu 1996, in prep.). The endangered red-shanked douc (Pygathrix nemaeus), endemic to Lao PDR, Vietnam, and perhaps Cambodia, remains little known. The known distribution of main P. nemaeus populations in Vietnam ranges from Pu Mat National Park, … Grey-shanked Douc might occur sympatrically with Red-shanked Douc in the southernmost part of the range of Red-shanked Douc. Shortly, the douc’s fur is a harmonious combination of the 5 colors: black, grey, white, brown-red and orange. The campaign to protect the peninsula's biodiversity, including the red-shanked douc langurs from the perils of poaching and the tourism boom, was launched in 2013. Many of these stalls feature hot pots. The Ring-tailed lemur is one of the most distinctive species of lemurs. The known distribution of main P. nemaeus populations in Vietnam ranges from Pu Mat National Park, Nghe An Province … So far, there is no research yet on the total population of red-shanked doucs in the Indochina. By contrast, Vietnam’s red-shanked douc langur population is smaller, having suffered significant decline due to years of human-caused destruction. 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