Biosphere Reserve: Comprehensive UPSC Notes
Definition and Concept
A Biosphere Reserve is an international designation by UNESCO for representative parts of natural and cultural landscapes extending over large areas of terrestrial, coastal, or marine ecosystems, or combinations thereof. These are special environments designed to reconcile the conservation of biodiversity with sustainable development while maintaining associated cultural values.vedantu+2
Biosphere Reserves are often described as “learning places for sustainable development” where communities and nature coexist harmoniously. They serve as living laboratories for testing interdisciplinary approaches to understanding and managing the complex interactions between social and ecological systems.unesco+1
Historical Background and UNESCO’s Man and Biosphere Programme
The concept of Biosphere Reserves originated from the UNESCO Biosphere Conference held in 1968, which was the first intergovernmental conference examining how to reconcile conservation and use of natural resources. This led to the establishment of the Man and Biosphere (MAB) Programme in 1971.elbetal-mv+3
The MAB Programme is an intergovernmental scientific programme that aims to establish a scientific basis for improving relationships between people and their environments. It combines natural and social sciences, economics, and education to improve human livelihoods while safeguarding natural and managed ecosystems.lotusarise+2
Key Facts about MAB Programme:
- Launched by UNESCO in 1971elbetal-mv+1
- Currently operates through 158 national committeeswikipedia
- As of 2024, there are 759 biosphere reserves across 136 countrieswikipedia
- India is a signatory to the MAB Programmelotusarise
Structure of Biosphere Reserves
Biosphere Reserves are organized into three interconnected and complementary zones that facilitate both conservation and sustainable development. This zonation system provides flexibility while ensuring effective biodiversity conservation and sustainable resource use.vedantu+2

Three-Zone Structure of Biosphere Reserves: Core, Buffer, and Transition Zones
1. Core Zone (Core Area)
The Core Zone represents the most protected area of a biosphere reserve with the following characteristics:vedantu+2
Features:
- Strictly protected ecosystem with legal protectiondrishtiias+1
- Often corresponds to existing National Parks or Wildlife Sanctuariesdrishtiias
- Protected under the Wildlife Protection Act, 1972drishtiias
- No human interference or activities permittedbyjus+1
- Contains endemic species and important genetic reservoirsdrishtiias
- Serves as a benchmark for natural conditionsvedantu
Functions:
- Preserve landscapes, ecosystems, species, and genetic variationunesco+1
- Conduct scientific research and monitoringbyjus+1
- Maintain ecosystem services (carbon capture, soil stabilization, water supply)unescomedcenter
- Act as reference points for natural ecosystem stateswatertonbiosphere
2. Buffer Zone
The Buffer Zone surrounds or adjoins the core area and serves as a transitional space:vedantu+2
Characteristics:
- Limited human activities permittedbyjus+1
- Activities must be compatible with sound ecological practicesunesco+1
- Focus on environmental managementvedantu
- Reduces impact of human activities on the core zoneunescomedcenter
Permitted Activities:
- Scientific research and monitoringdrishtiias+1
- Environmental education and trainingdrishtiias+1
- Limited tourism and recreationvedantu+1
- Restoration activitiesdrishtiias
- Controlled fishing, agriculture, and forest managementvedantu
- Eco-tourism facilitiesbyjus+1
3. Transition Zone (Manipulation Zone/Area of Cooperation)
The Transition Zone is the outermost area where human activities and conservation are balanced:vedantu+1
Features:
- Greatest human activity permittedunesco+1
- Zone of cooperation between reserve management and local communitiesdrishtiias
- Focus on sustainable economic and human developmentunesco+1
- Socio-culturally and ecologically sustainable activitiesunesco
Activities Allowed:
- Human settlements and communitiesvedantu+1
- Sustainable agriculture and croppingbyjus+1
- Managed forests and forestrydrishtiias+1
- Recreation and tourismbyjus+1
- Small-scale industriesvedantu
- Traditional livelihood practicesvedantu
Functions of Biosphere Reserves
Biosphere Reserves fulfill three complementary and mutually reinforcing functions:pca-cpa+2
1. Conservation Function
- Preserve genetic resources, species, ecosystems, and landscapesedukemy+2
- Protect biodiversity and cultural diversitylotusarise+1
- Maintain ecological balance and prevent habitat lossvedantu
- Conserve wild relatives of domesticated plants and animalsdoubtnut
- Address human-wildlife conflict issuesdrishtiias
2. Development Function
- Foster economic and human development that is socio-culturally and environmentally sustainablepca-cpa+1
- Promote sustainable use of natural resourcesunesco+1
- Support traditional tribal and rural lifestylesdrishtiias+1
- Strengthen the three pillars of sustainable development: social, economic, and environmental protectionedukemy+1
3. Logistic Support Function
- Provide support for research, monitoring, education, and trainingpca-cpa+1
- Facilitate information exchange related to conservation and sustainable developmentpca-cpa
- Promote capacity building in local communitieswatertonbiosphere
- Support knowledge sharing and best practicesedukemy
Criteria for Designation as Biosphere Reserve
To qualify as a Biosphere Reserve, a site must meet specific criteria:drishtiias+2
Ecological Criteria
- Contain a protected and minimally disturbed core area of significant conservation valuelotusarise+1
- Represent a bio-geographical unit large enough to sustain viable populations of all trophic levelsdrishtiias+1
- Have suitable habitat for endemic species and higher-order predatorsnextias
- Demonstrate exceptional scientific interestnextias
Social and Management Criteria
- Ensure involvement of local communities and utilize their knowledge in biodiversity preservationlotusarise+1
- Have potential for preserving traditional tribal or rural modes of livingdrishtiias+1
- Establish management authority that ensures community cooperationnextias
- Demonstrate ability to manage conflicts between conservation and developmentnextias
Biosphere Reserves in India
India has 18 designated Biosphere Reserves, of which 12 have received UNESCO recognition under the World Network of Biosphere Reserves (WNBR).byjus+2
Complete List of 18 Biosphere Reserves in India
S.No. | Year | Name | State(s) | Area (km²) |
---|---|---|---|---|
1 | 1986 | Nilgiri | Tamil Nadu, Kerala, Karnataka | 5,520 |
2 | 1988 | Nanda Devi | Uttarakhand | 5,860 |
3 | 1988 | Nokrek | Meghalaya | 820 |
4 | 1989 | Gulf of Mannar | Tamil Nadu | 10,500 |
5 | 1989 | Great Nicobar | Andaman & Nicobar Islands | 885 |
6 | 1989 | Sundarbans | West Bengal | 9,630 |
7 | 1989 | Manas | Assam | 2,837 |
8 | 1994 | Simlipal | Odisha | 4,374 |
9 | 1997 | Dibru-Saikhowa | Assam | 765 |
10 | 1998 | Dehang-Dibang | Arunachal Pradesh | 5,112 |
11 | 1999 | Pachmarhi | Madhya Pradesh | 4,982 |
12 | 2000 | Khangchendzonga | Sikkim | 2,620 |
13 | 2001 | Agasthyamalai | Kerala, Tamil Nadu | 3,500 |
14 | 2005 | Achanakmar-Amarkantak | Madhya Pradesh, Chhattisgarh | 3,835 |
15 | 2008 | Gulf of Kachchh | Gujarat | 12,454 |
16 | 2009 | Cold Desert | Himachal Pradesh | 7,770 |
17 | 2010 | Seshachalam Hills | Andhra Pradesh | 4,756 |
18 | 2011 | Panna | Madhya Pradesh | 2,999 |
UNESCO Recognized Biosphere Reserves from India
Name | UNESCO Recognition Year | States |
---|---|---|
Nilgiri | 2000 | Tamil Nadu, Kerala, Karnataka |
Gulf of Mannar | 2001 | Tamil Nadu |
Sundarbans | 2001 | West Bengal |
Nanda Devi | 2004 | Uttarakhand |
Nokrek | 2009 | Meghalaya |
Pachmarhi | 2009 | Madhya Pradesh |
Simlipal | 2009 | Odisha |
Achanakmar-Amarkantak | 2012 | Chhattisgarh, Madhya Pradesh |
Great Nicobar | 2013 | Andaman & Nicobar Islands |
Agasthyamalai | 2016 | Kerala, Tamil Nadu |
Khangchendzonga | 2018 | Sikkim |
Panna | 2020 | Madhya Pradesh |
Notable Facts:
- Nilgiri was the first Biosphere Reserve established in India (1986)pwonlyias
- Gulf of Kachchh is the largest Biosphere Reserve in Indiageeksforgeeks+1
- Dibru-Saikhowa is the smallest Biosphere Reserve in Indiabyjus+1
Role in Biodiversity Conservation
Biosphere Reserves play a crucial role in global biodiversity conservation through multiple mechanisms:
Ecosystem Conservation
- Preserve representative ecosystems from all major biomesgeeksforgeeks+1
- Protect landscapes and natural processes at ecosystem levelvedantu+1
- Maintain ecological connectivity between different habitatsunescomedcenter
- Conserve marine, coastal, and terrestrial ecosystemsunesco+1
Species Protection
- Safeguard endemic and endangered speciesdrishtiias+1
- Protect genetic reservoirs of wild relatives of crop plantsdoubtnut+1
- Maintain viable populations across all trophic levelslotusarise+1
- Address human-wildlife conflict through community engagementdrishtiias
Cultural Conservation
- Preserve traditional knowledge systems of indigenous communitiesedukemy+1
- Maintain cultural landscapes and traditional land-use practicesunescomedcenter+1
- Support customary sustainable practiceslotusarise+1
World Network of Biosphere Reserves (WNBR)
The World Network of Biosphere Reserves is a dynamic and interactive network of sites of excellence that promotes harmony between people and nature.wikipedia+1
Global Statistics (2024)
- 759 biosphere reserves across 136 countrieswikipedia
- 22 transboundary siteswikipedia
- Covers more than 5% of the world’s surfacewikipedia
- Home to over 260 million peoplewikipedia
Regional Distribution
- Africa: 86 sites in 31 countrieswikipedia
- Arab States: 35 sites in 14 countrieswikipedia
- Asia and Pacific: 168 sites in 40 countrieswikipedia
- Europe and North America: 306 sites in 24 countrieswikipedia
- Latin America and Caribbean: 132 sites in 22 countrieswikipedia
Benefits of WNBR Membership
- Access to international networks and expertisewatertonbiosphere+1
- Knowledge sharing and capacity building opportunitiesprepp+1
- Technical and financial support for conservation projectswatertonbiosphere
- Platform for North-South and South-South collaborationsdg.iisd+1
- Access to innovative funding mechanisms (REDD+, carbon markets)sdg.iisd
Significance and Benefits
Environmental Benefits
- Climate regulation through carbon sequestrationgeeksforgeeks
- Biodiversity conservation and habitat protectionvedantu+1
- Ecosystem services maintenance (water purification, soil conservation)unescomedcenter+1
- Natural resource sustainabilitygeeksforgeeks
- Restoration of degraded ecosystemsdoubtnut+1
Socio-Economic Benefits
- Sustainable livelihood opportunities for local communitieswatertonbiosphere+1
- Economic development through eco-tourismvedantu+1
- Poverty reduction and human well-being improvementunesco+1
- Capacity building and skill developmentedukemy+1
- Cultural preservation and traditional knowledge conservationlotusarise+1
Scientific and Educational Benefits
- Research and monitoring platformsedukemy+1
- Environmental education and awarenessedukemy+1
- Knowledge generation and disseminationedukemy
- Training opportunities for researchers and managersedukemy
- Policy development and implementation supportedukemy
Challenges and Management
Key Challenges
- Balancing conservation with development needsvedantu+1
- Managing human-wildlife conflictsdrishtiias
- Ensuring community participation and benefit-sharingedukemy+1
- Addressing climate change impactsgeeksforgeeks
- Securing long-term funding for managementedukemy
Management Approaches
- Participatory management involving local communitieswatertonbiosphere+1
- Integrated landscape approach to conservationsustainabledevelopment.un
- Adaptive management strategiesedukemy
- Multi-stakeholder collaborationcentreforeconics+1
- Science-based decision makingedukemy
Examples of Conservation Success Stories
Nilgiri Biosphere Reserve
- Successful integration of tiger and elephant conservation with community livelihoodsvedantu
- Sustainable agriculture practices (coffee and spice cultivation) in buffer zonesvedantu
- Eco-tourism development providing alternative income sourcesvedantu
Sundarbans Biosphere Reserve
- Royal Bengal tiger conservation in mangrove ecosystemspwonlyias
- Community-based mangrove restoration programspwonlyias
- Sustainable fisheries management with local communitiespwonlyias
Conclusion
Biosphere Reserves represent a holistic approach to conservation that recognizes the interconnectedness of ecological and social systems. They provide practical models for achieving the Sustainable Development Goals while conserving biodiversity for future generations.unesco+1
The success of Biosphere Reserves depends on effective governance, community participation, scientific research, and adaptive management. As India continues to expand its network of Biosphere Reserves, these sites will remain crucial for biodiversity conservation, sustainable development, and climate change mitigation.edukemy+3
For UPSC aspirants, understanding Biosphere Reserves is essential as they represent integrated approaches to environmental conservation that balance ecological, social, and economic considerations – a key theme in contemporary environmental governance and policy.
- https://en.unesco.org/biosphere
- https://www.drishtiias.com/to-the-points/paper3/biosphere-reserves-in-india
- https://www.unesco.org/en/mab/wnbr/about
- https://www.elbetal-mv.de/en/knowledge-understanding/man-and-the-biosphere/man-and-the-biosphere-mab
- https://lotusarise.com/biosphere-reserves-in-india-upsc/
- https://files.pca-cpa.org/pcadocs/bi-c/2.%20Canada/3.%20Exhibits/Exhibit%20R-283%20-%20UNESCO,%20FAQ,%20Bioshpere%20Reserves.pdf
- https://en.wikipedia.org/wiki/Man_and_the_Biosphere_Programme
- https://www.islandbiosphere.org/Contingut.aspx?IdPub=846&Menu=About
- https://en.wikipedia.org/wiki/World_Network_of_Biosphere_Reserves
- https://www.unescomedcenter.org/reservas-de-la-biosfera/
- https://byjus.com/biology/biosphere-reserves/
- https://www.watertonbiosphere.com/biosphere-reserves/three-functions-three-zones/
- https://edukemy.com/blog/biosphere-reserve-upsc-environment-notes/
- https://byjus.com/free-ias-prep/biosphere-reserve-in-india/
- https://www.doubtnut.com/qna/646648117
- https://simple.wikipedia.org/wiki/Biosphere_reserve
- https://prepp.in/news/e-492-criteria-for-selection-of-biosphere-reserves-environment-notes
- https://www.nextias.com/blog/biosphere-reserve/
- https://www.geeksforgeeks.org/what-is-biosphere-reserves/
- https://pwonlyias.com/biosphere-reserves/
- https://sustainabledevelopment.un.org/content/documents/18137ECOSOC_MAB_report.pdf
- https://www.centreforeconics.org/consultancy-and-projects/biosphere-reserves/
- https://prepp.in/news/e-492-structure-and-design-of-biosphere-reserves-environment-notes
- https://en.wikipedia.org/wiki/Biosphere_reserves_of_India
- https://energy.vikaspedia.in/viewcontent/energy/environment/biodiversity-1/biosphere-reserves-in-india?lgn=en
- https://www.sciencedirect.com/topics/social-sciences/biosphere-reserve
- https://testbook.com/ias-preparation/biosphere-reserves-in-india
- https://superkalam.com/upsc-mains/notes/biosphere-reserves-india
- https://www.sinac.go.cr/EN-US/reserbiosfe/Pages/funciones.aspx
- https://www.shankariasparliament.com/current-affairs/biosphere-reserves
- https://thebetterindia.com/393290/save-wildlife-conservation-heroes-india-innovation-protection-success-stories/
- https://biodiversityireland.ie/top10/10-conservation-success-stories/
- https://www.pib.gov.in/newsite/PrintRelease.aspx?relid=169754
- https://imc2025.info/imc25/sessions-n-workshops/focus-session/fs-3-208-unesco-world-network-of-mountain-biosphere-reserves-bridging-science-local-and-indigenous-knowledge-and-policy-for-sustainable-development/
- https://www.nature.org/en-us/what-we-do/our-priorities/protect-water-and-land/land-and-water-stories/conservation-projects-long-term-success/
- https://www.pmfias.com/biosphere-reserves/
- https://www.nwf.org/Our-Work/Wildlife-Conservation/Success-Stories
- https://testbook.com/question-answer/how-many-of-the-biosphere-reserves-from-india-are–60cc74ce6746a97130b8ae1b
- https://www.weforum.org/stories/2020/03/conservation-stories-on-world-wildlife-day/
- https://www.jkcprl.ac.in/download/11567495064.pdf
- https://www.nature.com/articles/s43247-025-02081-y
- https://restless.co.uk/leisure-and-lifestyle/learning/conservation-success-stories-that-give-us-hope-for-the-future/
- https://en.unesco.org/biosphere/wnbr