New Checklist of Flowering Plants in Agasthyamalai Biosphere Reserve

The Jawaharlal Nehru Tropical Botanic Garden and Research Institute (JNTBGRI) has compiled a new checklist of flowering plants in the Agasthyamalai Biosphere Reserve, highlighting its biodiversity significance. This matters for UPSC aspirants, especially for GS Paper 3, focusing on biodiversity and environment. Last Updated: 22-09-2026

Key Facts About Agasthyamalai Biosphere Reserve

• The checklist documented 3,261 species, 26 subspecies, and 28 varieties across 1,139 genera and 190 families.
• 31.2% of the taxa are endemic to India, with 245 steno-endemic taxa.
• The Fabaceae family is the most species-rich, followed by Rubiaceae, Poaceae, and Orchidaceae.
• ABR shares 347 taxa with Sri Lanka due to historical geological connections.
• It spans 3,500 square kilometers across Tamil Nadu and Kerala.
• Recognized by UNESCO in 2016 as part of the World Network of Biosphere Reserves.
• Home to unique species like the Neelakurinji and fauna such as the Lion-Tailed Macaque and Bengal Tiger.

Significance of Agasthyamalai Biosphere Reserve

The Agasthyamalai Biosphere Reserve (ABR) is crucial for preserving India's rich biodiversity, contributing to ecological balance and cultural heritage. It aligns with India's strategic goals of environmental conservation and sustainable development. The reserve's floral diversity and endemism are vital for ecological studies and conservation efforts, enhancing India's global standing in biodiversity preservation.

UPSC Relevance

GS Paper 3: Environment and Biodiversity - The Agasthyamalai Biosphere Reserve is relevant for topics on biodiversity conservation, ecological significance, and environmental challenges.

Prelims Angle: Questions could focus on the number of species, endemic taxa, and the significance of the Fabaceae family.

Mains Angle: Analytical themes could include biodiversity conservation strategies, the role of biosphere reserves, and the impact of climate change on biodiversity.

FAQ Section

What is the Agasthyamalai Biosphere Reserve?
The Agasthyamalai Biosphere Reserve is a protected area in the Western Ghats, spanning 3,500 square kilometers across Tamil Nadu and Kerala, recognized for its rich biodiversity and cultural significance.

Why is the Agasthyamalai Biosphere Reserve important?
It is important due to its high level of floral diversity and endemism, contributing to ecological balance, and serving as a habitat for unique flora and fauna.

What are the key features of the Agasthyamalai Biosphere Reserve?
Key features include its recognition by UNESCO, the presence of endemic species, and its role in preserving the cultural heritage of indigenous communities.