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  • Conservation of the Tonkin Snub-nosed Monkey in Khau Ca Forest, Northeast Vietnam

Conservation of the Tonkin Snub-nosed Monkey in Khau Ca Forest

Northeast Vietnam

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Tonkin Snub-nosed Monkey

(Rhinopithecus avunculus)

The IUCN Status

LC Least Concern
NT
VU
EN
CR Critically Endangered
EW
EX Extinct
The IUCN Red List of Threatened Species

The IUCN Red List of Threatened Species

The IUCN Red List of Threatened Species is widely recognized as the most comprehensive, objective global approach for evaluating the conservation status of plant and animal species.

DD

Data Deficient

Unknown risk of extinction

LC

Least Concern

At relatively low risk of extinction

NT

Near Threatened

Likely to become vulnerable in the near future

VU

Vulnerable

At high risk of extinction in the wild

EN

Endangered

At very high risk of extinction in the wild

CR

Critically Endangered

At extremely high risk of extinction in the wild

EW

Extinct in the Wild

Survives only in captivity

EX

Extinct

No surviving individuals in the wild or in captivity

The challenge

Hunted, driven out and endangered 
Endemic to the northeast Vietnam, the Tonkin snub-nosed monkey (Rhinopithecus avunculus) is found in tropical evergreen forests in karst limestone hills. Its distribution has significantly declined in the past few decades as a result of deforestation and intensive hunting. It has been consistently listed as one of the “top 25 most endangered primates” by several global conservation organizations and specialist groups. 

The goal

Protecting the largest known viable population 
Primatologist Le Khac Quyet’s project focuses on what is likely to be the largest viable population of Tonkin snub-nosed monkeys in the Khau Ca forest, which constitutes a key habitat conservation area in Ha Giang Province, Vietnam. Along with a team of local rangers, Quyet’s goal is to monitor the current population and habitat in Khau Ca forest. The data will go towards preventing the extinction of this valuable endemic species. At the same time, Quyet and his team focus on coordinating conservation efforts with NGOs and the Forestry Protection Department of Vietnam. 

Our Role

Supporting the on-ground team and furthering research 
WRS supports both Le Khac Quyet and four research assistants to continue regular monitoring of the Tonkin snub-nosed monkey population and its habitat. Apart from gathering data on a monthly basis, the team collects fecal samples for population genetics and continues to collect data on ranging behaviour, social behaviour and structure, as well as habitat use in Khau Ca. The presence of researchers and local research assistants has also helped to deter encroachment into the protected area by hunters. 

The Impact

Addressing the gap in research and raising awareness 
Quyet and his team’s scientific work has played a key role in addressing the lack of scientific data on the critically endangered Tonkin snub-nosed monkey. The involvement of local researchers has ensured that more members of the community are trained to monitor and protect the Tonkin snub nosed monkey. Through interaction with researchers, local villagers have begun gaining a better understanding of the factors that are critical for the conservation of the species. 
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