What are biosphere reserves?

Biosphere reserves are ‘learning places for sustainable development’. They are sites for testing interdisciplinary approaches to understanding and managing changes and interactions between social and ecological systems, including conflict prevention and management of biodiversity. They are places that provide local solutions to global challenges. Biosphere reserves include terrestrial, marine and coastal ecosystems. Each site promotes solutions reconciling the conservation of biodiversity with its sustainable use.

Biosphere reserves are nominated by national governments and remain under the sovereign jurisdiction of the states where they are located. Biosphere Reserves are designated under the intergovernmental MAB Programme by the Director-General of UNESCO following the decisions of the MAB International Coordinating Council (MAB-ICC). Their status is internationally recognized. Member States can submit sites through thedesignation process.

Biosphere Reserves involve local communities and all interested stakeholders in planning and management.
They integrate three main "functions":
Conservation

of biodiversity and cultural diversity

Economic development

that is socio-culturally and environmentally sustainable

Logistic support

underpinning development through research, monitoring, education and training

These three functions are pursued through the Biosphere Reserves' three main zones

Core areas (3)

They comprise a strictly protected zone that contributes to the conservation of landscapes, ecosystems, species and genetic variation

Buffer zones (2)

They surround or adjoin the core area(s), and are used for activities compatible with sound ecological practices that can reinforce scientific research, monitoring, training and education.

Transition area (1)

The transition area is where communities foster socio-culturally and ecologically sustainable economic and human activities.

Zonation of biosphere reserves
UNESCO / delhambre
Technical guidelines for biosphere reserves
UNESCO
2022

In order to assist the stakeholders with the designation process, as well as periodic reviews, Technical Guidelines are being progressively created by the MAB International Co-ordinating Council.

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World Network of Biosphere Reserves

The World Network of Biosphere Reserves (WNBR) consists of a dynamic and interactive network of sites of excellence.It promotes North-South, South-South and South-North-South collaboration and represents a unique tool for international cooperation through the exchange of experiences and know-how, capacity-building and the promotion of best practices among Biosphere Reserves.

Map of the World Network of Biosphere Reserves (2025-2026)
UNESCO
Map of the World Network of Biosphere Reserves, 2025-2026
UNESCO
2025
Poster of the map of the World Network of Biosphere Reserves 2025-2026