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Knowledge Nugget: UNESCO Biosphere Reserves — what’s the latest you need to know for UPSC exam

With the inclusion of the Cold Desert of Himachal Pradesh in UNESCO's World Network of Biosphere Reserves, the total number of such reserves in India has reached 13. But what exactly are biosphere reserves? What are the biosphere reserves of India?

UNESCO biosphere reserves, upsc, environment, current affairsHimachal Pradesh's cold desert enters the UNESCO biosphere reserve list. (File photo)

Take a look at the essential concepts, terms, quotes, or phenomena every day and brush up your knowledge. Here’s your UPSC current affairs 2025 knowledge nugget on the UNESCO’s World Network of Biosphere Reserve.

Knowledge Nugget: World Network of Biosphere Reserves (WNBR) of UNESCO

Subject: Environment

(Relevance: Biosphere reserves are important for conserving biodiversity. UPSC has asked questions directly about biosphere reserves in the Prelims. From its location to its significance and the process of designation as a WNBR by UNESCO, they are important from exam perspective.)

Why in the news?

The Cold Desert Biosphere Reserve (CDBR) in Himachal Pradesh has been included in World Network of Biosphere Reserves (WNBR) by the UNESCO, a global recognition that places the 7,770-sq km area spread across the state’s Lahaul-Spiti district on the international conservation map. With this addition, India now has 13 biospheres listed in WNBR.

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Key takeaways:

1. During the 37th session of UNESCO’s International Coordinating Council of the Man and the Biosphere (MAB) held in Paris, 26 new biosphere reserves across 21 countries — the highest number in 20 years– have been added to the list of WNBR.

2. The CDBR is spread across the Trans-Himalayan region. It encompasses the entire Spiti Wildlife Division and adjoining areas of the Lahaul Forest Division, including Baralacha Pass, Bharatpur, and Sarchu with altitudes ranging from 3,300 to 6,600 m.

3. It integrates Pin Valley National Park, Kibber Wildlife Sanctuary, Chandratal Wetland, and the Sarchu plains, encompassing windswept plateaus, glacial valleys, alpine lakes, and high-altitude desert, making it one of the coldest and driest ecosystems in WNBR.

4. The Cold Desert is zoned into three partscore (2,665 sq km), buffer (3,977 sq km), and transition (1,128 sq km) — balancing conservation, sustainable use, and community participation. It is rich in herbs, shrubs, tree species, endemic species, wildlife and medicinal plants. Snow leopard as the flagship species reside here.

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What is a Biosphere reserve?

1. According to the Ministry of Environment and Forests, the Biosphere Reserves are meant to represent characteristic ecosystems in different biogeographic regions and consider human communities as their integral component. These are ‘learning places for sustainable development’.

2. The objectives of the designation of a Biosphere Reserve include:

(i) ensuring in-situ conservation (at all levels of biodiversity ranging from genes to ecosystems) in totality as part of the wider ecosystem;

(ii) widening the understanding (through research and monitoring) of components of ecosystems;

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(iii) achieving integrated development (improved quality of life for indigenous communities living in and around) of the area.”

3. A biosphere reserve comprises three zones: core (protected area that conserves ecosystems and species), buffer (managed for research and education), and transition (area where sustainable human activities are promoted in harmony with conservation goals).

4. The idea of designation of Biosphere Reserves was initiated by UNESCO in 1973-74 under its Man and the Biosphere (MAB) Programme. Launched in 1971 as an intergovernmental scientific initiative, MAB proposes an interdisciplinary research agenda and capacity building, aiming to improve the relationship of people with their environment globally.

nilgiri, biosphere reserve. Still of Tiger from Nilgiri – A shared wilderness, a 75-minute-long documentary by Sandesh Kadur. Nilgiri is India’s first biosphere reserve.

5. Biosphere reserves are nominated by national governments and remain under the sovereign jurisdiction of the states where they are located. After the launch of UNESCO’s MAB programme, the Indian Man and Biosphere (MAB) Committee identified potential sites for designation as Biosphere Reserves in 1979. As a result, the Indian National Biosphere Reserve Programme was initiated in 1986. Following the MAB guidelines, the Indian government has recognised 18 biosphere reserves so far.

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6. The WNBR is a dynamic and interactive community of sites of excellence, managed by the Man and the Biosphere (MAB) Programme of UNESCO. For designating a site under WNBR, the government needs to propose it to UNESCO, which recognises it after it fulfills certain criteria. In India, 13 biosphere reserves are recognised in the WNBR.

7. For the management of these biosphere reserves, the Indian government provides financial assistance through its Centrally Sponsored Biosphere Reserve scheme. The focus of the scheme is on the welfare of local inhabitants through the provision of supplementary and alternate livelihood support to the people in the buffer and transition zones in order to reduce biotic pressure on biodiversity of the natural reserves of the core zone.

BEYOND THE NUGGET: Biosphere Reserves of India

There are 18 biosphere reserves in India. Nilgiri was the first biosphere reserve of India, established in 1986.

Biosphere Reserve Designated Inclusion Year in WNBR

State

Nilgiri 1986 2000 Tamil Nadu, Kerala and Karnataka
Nanda Devi 1988 2004 Uttarakhand
Nokrek 1988 2009 Meghalaya
Gulf of Mannar 1989 2001 Tamil Nadu
Sunderbans 1989 2001 West Bengal
Manas 1989 Assam
Great Nicobar 1989 2013 Andaman and Nicobar Islands
Simlipal 1994 2009 Odisha
Dibru-Saikhowa 1997 Assam
Dehang-Dibang 1998 Arunachal Pradesh
Panchmarhi 1999 2009 Madhya Pradesh
Khangchendzonga 2000 2018 Sikkim
Agasthyamalai 2001 2016 Kerala, Tamil Nadu
Achanakmar-

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Amarkantak

2005 2012 Madhya Pradesh, Chhattisgarh
Great Rann of Kutch 2008 Gujarat
Cold Desert 2009 2025 Himachal Pradesh
Seshaschalam 2010 Andhra Pradesh
Panna 2011 2020 Madhya Pradesh

(Source: moef.gov.in)

Post Read Questions

(1) The most important strategy for the conservation of biodiversity together with traditional human life is the establishment of (UPSC CSE 2014)

(a) biosphere reserves

(b) botanical gardens

(c) national parks

(d) wildlife sanctuaries

(2) Which of the following are in Agasthyamala Biosphere Reserve? (UPSC CSE 2019)

(a) Neyyar, Peppara and Shendurney Wildlife Sanctuaries; and Kalakad Mundanthurai Tiger Reserve

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(b) Mudumalai, Sathyamangalam and Wayanad Wildlife Sanctuaries; and Silent Valley National Park

(c) Kaundinya, Gundla Brahme-swaram and Papikonda Wildlife Sanctuaries; and Mukurthi National Park

(d) Kawal and Sri Venkateswara Wildlife Sanctuaries; and Nagarjunasagar-Srisailam Tiger Reserve

Answer key
1. (a)        2. (a)

(Sources: Himachal cold desert enters UNESCO biosphere reserve list, Biodiversity under threat, what we need to do, unesco, moef)

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Khushboo Kumari is a Deputy Copy Editor with The Indian Express. She has done her graduation and post-graduation in History from the University of Delhi. At The Indian Express, she writes for the UPSC section. She holds experience in UPSC-related content development. You can contact her via email: khushboo.kumari@indianexpress.com ... Read More

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