Stress tests and drones: the new playbook to protect the endangered western hoolock gibbon
Dec 24, 2025
5 min read
70% UPSC
GS3The Hindu - National
Key Points
- The western hoolock gibbon is the only non-human ape species in India.
- The Hollongapar Gibbon Sanctuary in Assam is a key habitat for the western hoolock gibbon.
- The western hoolock gibbon population has declined from an estimated 100,000 to less than 5,000 in the last half-century.
- Habitat loss, fragmentation, and hunting are major threats to the western hoolock gibbon.
- A British-era railway line splits the Hollongapar Gibbon Sanctuary, contributing to habitat fragmentation.
- Conservation Initiatives and The Habitats Trust are working on technology-based solutions for gibbon identification and monitoring.
- Local communities are being involved in conservation efforts to protect gibbon habitats.
- Aaranyak is studying the genetics and stress levels of gibbon populations to understand in-breeding and the impact of human pressures.