The Tonkin snub-nosed monkey, a rare and critically endangered species endemic to Vietnam, is experiencing a fascinating dichotomy in its population trends. While it has all but disappeared from certain habitats, it has seen a remarkable resurgence in others. This article delves into the story of this elusive primate, exploring the factors contributing to its decline and recovery, and the efforts being made to ensure its survival.
A Species on the Brink
Once thought to be extinct, the Tonkin snub-nosed monkey was rediscovered in the late 1980s and 1990s, with a population of just 50 found in Khau Ca's limestone forest in 2002. This discovery was a glimmer of hope, but it also highlighted the fragility of the species' existence. The monkeys were being hunted for traditional medicine and bushmeat, and their habitats were under threat from illegal deforestation and farming practices.
A Conservation Success Story
Fauna & Flora International's recent census reveals a heartening trend: the population in Khau Ca has more than tripled since 2002, with an estimated 160 individuals, accounting for 80% of the entire species. This success can be attributed to the dedicated work of field conservationist Canh Xuan Chu and the establishment of a conservation field station. Community conservation teams were formed to protect the forest, remove snares, and report illegal activities. Additionally, income-generating initiatives, such as patrol groups, have empowered local communities to actively participate in conservation efforts.
The survey methodology, involving thermal imaging drones, camera traps, and audiomoths, has been instrumental in accurately counting the elusive monkeys. Chu's personal connection to the project is evident as he can identify individual monkeys by their unique coloring, tails, and calls, a testament to his seven years of dedication.
Contrasting Fortunes
In stark contrast, the population in Quan Ba, previously home to the second-largest population, has faced a dire decline. Patrollers haven't seen the species since 2020, and the most recent survey found no signs of the monkeys. The primary culprit is cardamom farming, which involves clearing trees and cutting firewood, degrading the forest ecosystem that the Tonkin snub-nosed monkey relies on for survival.
The lack of formal protection in Quan Ba has limited conservation efforts. Unlike Khau Ca, where community conservation teams and protective restrictions are in place, Quan Ba's large area and low visibility make it challenging to implement long-term habitat management.
A Path Forward
Fauna & Flora International is not giving up on Quan Ba. They are working on creating wildlife corridors from Khau Ca, aiming to connect the two areas and promote biodiversity. Chu emphasizes the importance of reducing human presence in the forest and implementing more stringent protection measures in Quan Ba to ensure the species' survival.
The story of the Tonkin snub-nosed monkey serves as a powerful reminder of the delicate balance between conservation efforts and the challenges posed by human activities. It highlights the need for continued vigilance, community engagement, and innovative conservation strategies to protect this endangered species and its fragile habitats.
