What are the Key Facts About the Hoollongapar Gibbon Wildlife Sanctuary? is a key topic under Environment And Ecology for UPSC Civil Services Examination. Key points include: The Hoollongapar Gibbon Wildlife Sanctuary is located in Assam, India.. It is the sole habitat for gibbons (specifically the Western Hoolock Gibbon) in India.. The sanctuary was established and renamed in 1997, and officially became Hoollongapar Gibbon WLS in 2004.. Understanding this topic is essential for both UPSC Prelims and Mains preparation.
What are the Key Facts About the Hoollongapar Gibbon Wildlife Sanctuary? is a Medium-level topic in UPSC Environment And Ecology. It is tested in both Prelims (factual MCQs) and Mains (analytical answer writing). Previous year UPSC questions have frequently covered aspects of What are the Key Facts About the Hoollongapar Gibbon Wildlife Sanctuary?, making it essential for comprehensive IAS preparation.
To prepare What are the Key Facts About the Hoollongapar Gibbon Wildlife Sanctuary? for UPSC: (1) Study the comprehensive notes covering all key concepts on Vaidra. (2) Practice previous year questions on this topic. (3) Connect it with current affairs using daily updates. (4) Revise using key takeaways and mind maps available for Environment And Ecology. (5) Write practice answers linking What are the Key Facts About the Hoollongapar Gibbon Wildlife Sanctuary? to related GS Paper topics.

The Hoollongapar Gibbon Wildlife Sanctuary is a vital protected area located in the state of Assam, India. It plays a crucial role in the conservation of unique biodiversity in the region.
Location: Assam, India
The sanctuary underwent significant changes in its designation and nomenclature over the years. These changes reflect its evolving status as a protected area.
Prior to its current name, it was known as the Gibbon Wildlife Sanctuary or the Hollongapar Reserve Forest, highlighting its historical significance as a forested region.
This sanctuary is globally recognized for its exceptional biodiversity. Its primary distinction lies in being the sole habitat for gibbons in India, making it a critical conservation site.
The Hoollongapar Gibbon Wildlife Sanctuary is the only sanctuary in India dedicated primarily to the conservation of gibbons, specifically the Western Hoolock Gibbon.
The vegetation within the sanctuary is rich and diverse, characterized by a prominent upper canopy. This forest type supports a wide array of plant and animal life.
The upper canopy is predominantly characterized by the towering Hollong tree (Dipterocarpus macrocarpa), which can reach impressive heights of up to 30 metres.
Other significant tree species found in the sanctuary include Sam, Amari, Sopaat, Betelu, Udai, and Hingori. These species contribute to the rich ecological fabric of the area.
For UPSC Prelims, remember the Hollong tree as the dominant species and its scientific name, Dipterocarpus macrocarpa. Also, note the specific mention of it being the sole gibbon habitat in India, which is a key distinguishing fact.


PM Modi Calls for Austerity‑Style Behavioural Changes Amid Oil‑Price Shock – What It Means for India
4 Jun 2026
Watch: Karnataka CM change: Siddaramaiah resigns, what’s next? | Above the Fold | 28.05.2026
28 May 2026
Knowledge Nugget: What makes GalaxEye’s Drishti satellite first of its kind?
11 May 2026
What is Karnataka’s new gig worker grievance system? | Explained
7 May 2026