Initial Conservation of the Newly Discovered Gray-Shanked Douc Langur Population in Khe Lim Forest, Dai Hong Commune, Da Nang City

13 Feb 2026 Dai Hong commune (new Ha Nha commune), Vietnam, Asia Biodiversity | Communities | Mammals | Primates

Linh Nguyen Van

This project focuses on the conservation of the Grey-shanked Douc Langur (Pygathrix cinerea), a Critically Endangered (CR) primate endemic to Vietnam. The core of the initiative centers on a newly discovered population in the Khe Lim community forest, Dai Loc District, Quang Nam Province. This site lies outside the species' previously known range and currently functions only as a local watershed protection forest, leaving the langurs highly vulnerable to poaching and habitat loss from acacia plantation expansion.

As the local researcher who first identified this population, I am spearheading this project to bridge critical scientific data gaps and establish a foundation for formal, long-term conservation strategies in this unprotected landscape.

Main Objectives:

· Population Assessment: Conduct comprehensive field surveys to accurately determine the population size, troop structure, and distribution mapping of the langurs within the Khe Lim area.

· Genetic Research: Collect non-invasive DNA samples (fecal/hair) for genetic analysis to assess the long-term viability and genetic diversity of this subpopulation amidst habitat fragmentation.

· Threat Assessment: Perform semi-structured interviews with forest rangers and local community members to identify anthropogenic pressures, specifically illegal hunting and habitat encroachment.

· Policy Advocacy: Synthesise and transfer scientific data to the Da Nang Forest Protection Department and relevant stakeholders, providing the necessary evidence to advocate for official conservation status for the site.

· Community Engagement: Leverage local expertise and established trust to foster community-based monitoring, transforming local residents into active partners in protecting this rare primate.

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