These are undisturbed Natural area for scientific studies as well as areas in which conditions of disturbance are under control. Biosphere Reserve network programme was launched by UNESCO in 1971 under MAB (Man and Biosphere) Programme Basically Biosphere Reserve consists of three Zones:

• Core Zone - It lies at the centre where no human activity is allowed.
• Buffer Zone - In this zone, limited human activities are allowed. It surrounds the Core zone.
• Manipulative Zone - In this zone, multiple human activities are allowed without disturbing the ecology.

Role of Biosphere Reserves -

A biosphere reserve preserves :

1. Wild Populations
2. Life style of tribals
3. Genetic resources of domesticated plants and animals.

Here is the list of all Biosphere reserves of India.

1. Nilgiri Biosphere Reserve (Tamil Nadu, Kerala and Karnataka)
2. Nanda Devi Biosphere Reserve (Uttarakhand)
3. Gulf of Mannar (Tamil Nadu)
4. Nokrek (Meghalaya)
5. Sundarbans (West Bengal)
6. Manas (Assam)
7. Simlipal (Odisha)
8. Dihang-Dibang (Arunachal Pradesh)
9. Pachmarhi Biosphere Reserve (Madhya Pradesh)
10. Achanakmar-Amarkantak Biosphere Reserve (Madhya Pradesh, Chhattisgarh)
11. Great Rann of Kutch (Gujarat)
12. Cold Desert (Himachal Pradesh)
13. Khangchendzonga National Park (Sikkim)
14. Agasthyamalai Biosphere Reserve (Kerala, Tamil Nadu)
15. Great Nicobar Biosphere Reserve (Andaman and Nicobar Islands)
16. Dibru-Saikhowa (Assam)
17. Seshachalam Hills (Andhra Pradesh)
18. Panna (Madhya Pradesh)