The story of the Tonkin snub-nosed monkey's resurgence in Vietnam's Khau Ca forest is a testament to the power of conservation efforts and a glimmer of hope for endangered species worldwide. This rare primate, once thought to be on the brink of extinction, has seen its population triple in the last two decades, thanks to dedicated conservationists and local communities. But the tale is not without its challenges and complexities, particularly in the neighboring Quan Ba forest, where the species is struggling to survive.
The Tonkin snub-nosed monkey, with its distinctive facial markings and shy nature, has long been a target for traditional medicine and bushmeat hunters. By the 1980s, it was presumed extinct, but a handful of locations, including Khau Ca, still harbored a few individuals. In 2002, a population of just 50 was discovered in Khau Ca, a limestone forest in Vietnam's northernmost provinces bordering China. This discovery sparked a conservation effort that has since borne fruit.
Fauna & Flora International's recent survey, conducted across the park's 1,000-hectare area, found that the Khau Ca population has more than tripled since 2002, with 160 monkeys now living in the reserve. This success is attributed to the establishment of a conservation field station, community conservation teams, and income-generating projects that support local communities. These efforts have not only protected the forest but also raised awareness about the importance of safeguarding the species and its habitat.
The survey methodology, which divided the reserve into sections and utilized thermal imaging drones, camera traps, and audiomoths, was a significant improvement over past attempts. Project manager Canh Xuan Chu, who has worked on the project for seven years, praised the monkeys' unique calls and physical characteristics, making them easier to identify and count.
However, the story is not as positive in Quan Ba, the second-largest population site. Patrollers haven't seen the species since 2020, and the most recent survey in 2024 found no signs of the monkeys. The primary culprit is cardamom farming, which involves clearing trees and cutting firewood, degrading the forest ecosystem. Unlike Khau Ca, Quan Ba is not a formally protected area, limiting conservation efforts.
Despite these challenges, Fauna & Flora International remains committed to the species' survival. They are creating wildlife corridors from Khau Ca to Quan Ba, hoping to connect the two areas and restore the species' population. The organization also maintains a patrol group in Quan Ba, recognizing the low chance of seeing the monkeys and the need for continued protection.
The story of the Tonkin snub-nosed monkey's resurgence in Khau Ca is a beacon of hope for conservation efforts worldwide. It highlights the importance of community involvement, innovative survey methods, and the need for long-term habitat management. As we celebrate this success, we must also remain vigilant in addressing the challenges faced by endangered species in other parts of the world.
