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Type: National Parks/WS

  • Meghalaya’s Umngot River turns Muddy

    Why in the News?

    The Umngot River, celebrated for its crystal-clear waters and tourist appeal at Dawki and Shnongpdeng, has turned murky and opaque.

    Meghalaya’s Umngot River turns Muddy

    About Umngot River:

    • Location: Flows through West Jaintia Hills district, Meghalaya, close to the India–Bangladesh border.
    • Origin: Arises from the Jaintia Hills, traversing limestone-rich terrain that naturally filters impurities and maintains clarity.
    • Distinct Appearance: Known for its crystal-clear waters that create the illusion of boats floating on air, earning it global recognition.
    • Length & Course: Flows southward to Dawki town, where it merges with Bangladesh’s Piyain River.
    • Ecological Features: Possesses high dissolved oxygen levels, preventing algal growth and supporting diverse aquatic biodiversity.
    • Tourism Hub: Popular at Dawki and Shnongpdeng for boating, fishing, camping, and eco-tourism, drawing thousands of visitors annually.
    • Infrastructure Landmark: The Dawki Suspension Bridge (1932) is a heritage structure spanning the river and serving as a trade route link.
    • Economic Role: Sustains cross-border trade, local fishing, and tourism-driven livelihoods vital to Meghalaya’s rural economy.
    • Cultural Boundary: Serves as a natural divider between Ri Pnar (Jaintia Hills) and Hima Khyrim (Khasi Hills).

    Cause of Discoloration:

    • Primary Cause: Linked to Shillong–Dawki road-widening project upgrading it to a two-lane highway with a 400 m bridge at Dawki.
    • Pollution Source: Hill-cutting, excavation, and soil dumping along sites near Umtyngar and Dawki caused heavy sediment runoff.
    • Inspection Findings: The Meghalaya State Pollution Control Board (MSPCB) detected uncontained debris and sliding soil entering the river, reducing water transparency.
    [UPSC 2021] Consider the following rivers:

    1. Brahmani 2. Nagavali 3. Subarnarekha 4. Vamsadhara

    Which of the above rise from the Eastern Ghats?

    Options: (a) 1 and 2 (b) 2 and 4* (c) 3 and 4 (d) 1 and 3

     

  • Pampadum Shola National Park

    Why in the News?

    At Pampadum Shola National Park, invasive Australian wattles are being removed and native grasslands restored naturally leading streams to flow again and biodiversity to rejuvenate.

    About Pampadum Shola National Park:

    • Location: Situated in Idukki district, Kerala, near the Tamil Nadu border, about 35 km from Munnar.
    • Area & Status: Smallest NP in Kerala (11.753 sq km); declared in 2003 to protect the shola–grassland ecosystem.
    • Landscape: Lies at 1,600–2,400 m elevation within the Anamalai–High Range landscape, part of the Anamudi Sub-cluster (UNESCO World Heritage Site).
    • Hydrology: Serves as a watershed for the Pambar and Vaigai Rivers, vital to Tamil Nadu’s plains.
    • Flora & Fauna: Features evergreen forests, moist deciduous patches, and montane grasslands; key species include Nilgiri Marten, Kerala Laughing Thrush, Nilgiri Tahr, and Indian Giant Squirrel.
    • Restoration Efforts: Ecological restoration (2020–2024) underway, removal of invasive Australian wattles (Acacia mearnsii) has revived native grasslands and streams.
    • Climate & Tourism: Experiences cool, misty weather (6°C–30°C) with dual monsoons; regulated trekking under Forest Department supervision.

    What are Shola Forests?

    • Overview: Tropical montane evergreen forests found above 1,600 m in the Western Ghats across Kerala, Tamil Nadu, and Karnataka.
    • Etymology: Derived from Tamil word “solai”, meaning sacred grove or thicket.
    • Structure: Occur as a mosaic of stunted evergreen forests and grasslands, forming the shola–grassland ecosystem.
    • Floral Composition: Dominated by Michelia nilagirica, Rhododendron, Eurya, Schefflera, and Elaeocarpus species with rich epiphyte growth.
    • Ecological Role: Act as natural sponges, absorbing rain, recharging aquifers, and feeding perennial rivers like Cauvery, Bhavani, Vaigai, and Thamirabarani.
    • Biodiversity: Support high endemism, harbouring Nilgiri Tahr, Lion-tailed Macaque, Nilgiri Pipit, and other rare fauna.

     

    [UPSC 2020] Which of the following Protected Areas are located in Cauvery basin?

    1. Nagarhole National Park

    2. Papikonda National Park

    3. Sathyamangalam Tiger Reserve

    4. Wayanad Wildlife Sanctuary

    Select the correct answer using the code given below:

    (a) 1 and 2 only (b) 3 and 4 only (c) 1, 3 and 4 only * (d) 1, 2, 3 and 4

     

  • Rowmari- Donduwa Wetland Complex

    Why in the News?

    Environmentalists in Assam have proposed the Rowmari–Donduwa Wetland Complex for designation as a Ramsar Site, citing its exceptional biodiversity and ecological services.

    Assam’s Wetland Context:

    • Current Scenario: Assam has 3,500+ wetlands (≈1.01 lakh ha), but only Deepor Beel (2002) is a Ramsar Site.
    • Conservation Importance: Designating Rowmari–Donduwa would fill a 20-year conservation gap and enhance Assam’s global wetland profile.
    • Regional Context: North-East India’s Ramsar Sites-  Deepor Beel (Assam), Loktak (Manipur), Rudrasagar (Tripura), Pala (Mizoram).

    About Rowmari–Donduwa Wetland Complex:

    • Overview: Situated within the Laokhowa–Burhachapori Wildlife Sanctuary, Nagaon district, Assam, forming part of the Kaziranga–Orang landscape.
    • Ecological Role: An interconnected floodplain–marsh system acting as an ecological corridor between Kaziranga and Orang National Parks, supporting wildlife movement and genetic diversity.
    • Biodiversity Significance: The 6th Kaziranga Wetland Bird Census (2025) recorded 47,000+ birds of 120 species, exceeding counts from Deepor Beel and Loktak Lake.
    • Key Species: Hosts globally threatened birds, Knob-billed Duck, Lesser Adjutant Stork, Black-necked Stork, Ferruginous Pochard, and Common Pochard.
    • Ecosystem Services: Provides flood control, groundwater recharge, carbon storage, and supports fisheries and ecotourism-based livelihoods.
    • Ramsar Eligibility: Fulfils 8 of 9 Ramsar criteria, qualifying as a Wetland of International Importance.

    Back2Basics: Ramsar Convention

    • Establishment: Signed on 2 February 1971 in Ramsar, Iran.
    • Objective: Provide a framework for conservation and wise use of wetlands and their resources.
    • Functions:
      • Identify and designate wetlands of international importance.
      • Promote effective management of wetlands.
      • Foster international cooperation for conservation.
    • Members: 173 countries (as of 2025).
    • India and Ramsar:
      • India joined in 1982.
      • First Ramsar site: Chilika Lake, Odisha (1981).
      • Current total: 93 sites (Sept 2025), covering 13,60,718 hectares.
      • Growth: From 26 sites in 2012 to 93 in 2025 (51 added since 2020).
      • State-wise: Tamil Nadu has the highest (20), followed by Uttar Pradesh (10).
      • About 10% of India’s total wetland area is under Ramsar listing.
    • Montreux Record: List of Ramsar sites under threat of ecological change.
      • 48 sites globally (2025).
      • 2 Indian sites included: Keoladeo National Park (Rajasthan) and Loktak Lake (Manipur).
    • World Wetlands Day: Celebrated on February 2nd every year.
      • 2025 Theme: “Protecting Wetlands for Our Common Future”.

    Criteria for Declaration (9 Criteria):

    A wetland can be declared a Ramsar site if it meets at least one of these:

    1. Has unique, rare, or representative wetland types.
    2. Supports vulnerable, endangered, or endemic species.
    3. Provides critical habitat for waterfowl, especially during migration.
    4. Contains significant ecological, botanical, zoological, limnological, or hydrological features.
    5. Supports biodiversity conservation and scientific research.
    6. Provides ecosystem services like flood control, groundwater recharge, and water purification.
    7. Has cultural, spiritual, or recreational importance.
    8. Ensures sustainable livelihoods for local communities.
    9. Faces threats requiring international cooperation for conservation.

     

    [UPSC 2022] Consider the following pairs:

    Wetland/Lake Location

    1. Hokera Wetland- Punjab

    2. Renuka Wetland- Himachal Pradesh

    3. Rudrasagar Lake- Tripura

    4. Sasthamkotta Lake- Tamil Nadu

    How many pairs given above are correctly matched?

    Options: (a) Only one pair (b) Only two pairs* (c) Only three pairs (d) All four pairs

     

  • Floods force closure of Bhavani Island

    Why in the News?

    Flood discharges at Prakasam Barrage on the Krishna River has led to the closure of Bhavani Island from the mainland.

    About Bhavani Island:

    • Location: Situated on the Krishna River, near Vijayawada, Andhra Pradesh.
    • Area: Spans ~133 acres, among India’s largest river islands.
    • Management: Operated by the Andhra Pradesh Tourism Department as a major eco-tourism and recreational hub.
    • Accessibility: Lies upstream of Prakasam Barrage, connected only by ferry services from the mainland.
    • Ecology & Features: Rich in greenery, ponds, and meadows, offering boating, gardens, adventure parks, rural museums, and event spaces.
    • Cultural Link: Named after Goddess Bhavani (Kanaka Durga); her temple atop Indrakeeladri Hill overlooks the river.

    Krishna River

    Floods force closure of Bhavani Island

    • Overview: One of India’s major peninsular rivers, stretching about 1,400 km.
    • Origin & Course: Rises near Mahabaleshwar (Maharashtra), flows eastward through Karnataka, Telangana, and Andhra Pradesh, entering the Bay of Bengal at Hamsaladeevi.
    • Basin Extent: Covers ~2.59 lakh sq km, nearly 8% of India’s area.
    • Boundaries: Flanked by Balaghat Range (north), Eastern Ghats (east), and Western Ghats (west).
    • Tributaries:
      • Right Bank: Ghataprabha, Malaprabha, Tungabhadra, and Musi Rivers.
      • Left Bank: Bhima, Koyna, Yerla, Panchganga, and Dudhganga Rivers.
    • Projects & Dams: Major hydropower and irrigation structures including Almatti, Srisailam, Nagarjuna Sagar, Narayanpur, and Jurala.
    • Prakasam Barrage: Built near Vijayawada to regulate water flow, support irrigation, navigation, and tourism.
    • Economic Role: Sustains agriculture, fisheries, and power generation, forming the riverine backbone of southern India.

  • Nauradehi WLS to become 3rd home for Cheetahs in Madhya Pradesh

    Why in the News?

    Madhya Pradesh CM has announced that Nauradehi Wildlife Sanctuary will soon become the third home for cheetahs in the State, after Kuno National Park and Gandhi Sagar Sanctuary.

    About Nauradehi Wildlife Sanctuary:

    • Overview: Largest wildlife sanctuary in Madhya Pradesh, covering 1,197 sq km across Sagar, Damoh, and Narsinghpur districts; located between the Narmada and Ganga river basins, forming a key ecological transition zone.
    • Establishment: Declared in 1975 to conserve the Indian wolf (Canis lupus pallipes), the flagship species. Habitat includes dry deciduous forests, scrublands, and grasslands supporting leopard, sloth bear, blackbuck, nilgai, chital, and hyena populations.
    • Upgradation (2024): Elevated to a Tiger Reserve to strengthen protection and become eligible for Project Cheetah under the National Tiger Conservation Authority (NTCA).
    • Connectivity: Linked with Panna Tiger Reserve and Satpura Tiger Reserve through the Nauradehi–Panna corridor, ensuring gene flow across Central India’s forest landscapes.
    • Habitat Characteristics: Open woodlands, scrub forests, and wide grass patches with undulating terrain ideal for high-speed pursuit predators like cheetahs.
    • Prey Base: Rich in blackbuck (Antilope cervicapra), chital (Axis axis), nilgai (Boselaphus tragocamelus), and wild boar.
    • Environmental Setting: Moderate rainfall, tributaries of the Narmada River, and dry tropical climate create a balanced hydrological regime.
    • Scientific Endorsement: Recognised by Wildlife Institute of India (WII) and NTCA as among India’s most feasible future cheetah habitats.

    Nauradehi WLS to become 3rd home for Cheetahs in Madhya Pradesh

    Cheetahs and their Reintroduction in India:

    • Overview: The cheetah (Acinonyx jubatus) is the world’s fastest land mammal (80–128 km/h). Two subspecies: African cheetah (A.j. jubatus) across Africa and Asiatic cheetah (A.j. venaticus) confined to Iran (< 30 individuals).
    • Conservation Status: Asiatic subspecies Critically Endangered by the IUCN; global population ≈ 6,500 mature individuals.
    • Extinction in India: Last recorded in Koriya (Chhattisgarh) in 1947; officially declared extinct in 1952 due to hunting and grassland degradation.
    • Project Cheetah (2022): Implemented by Ministry of Environment, Forest and Climate Change (MoEFCC) and NTCA with WII support; aims to restore cheetahs in India’s grasslands and revive lost ecological roles.
    • Translocation Phases: Eight cheetahs from Namibia (Sept 2022) and twelve from South Africa (Feb 2023) released at Kuno National Park (Madhya Pradesh).
    • Meta-Population Plan: To establish a connected population across Kuno, Gandhi Sagar, Nauradehi, and Mukundra Hills (Rajasthan) ensuring genetic diversity and landscape-level connectivity.
    • Long-Term Goal: Create a self-sustaining population of 35–40 individuals within 15 years through science-based, landscape-driven restoration.
    • Current Phase: Majority under semi-captive adaptation at Kuno; expansion to Nauradehi and Gandhi Sagar Tiger Reserves planned to reduce crowding and enhance resilience.

     

    [UPSC 2012] Consider the following:
    1. Black-necked crane 2. Cheetah 3. Flying squirrel 4. Snow leopardWhich of the above are naturally found in India?(a) 1, 2 and 3 only  (b) 1, 3 and 4 only*  (c) 2 and 4 only (d) 1, 2, 3 and 4

     

  • Water Pollution in Manipur’s Loktak Lake

    Why in the News?

    A recent Nagaland University study has raised alarms over the deteriorating ecological health of Loktak Lake, India’s largest freshwater lake and a designated Ramsar Site (since 1990) in Manipur.

    Key Findings of the Study:

    • Core Issue: Land-use changes such as agriculture expansion, human settlements, and shifting cultivation (jhum) are deteriorating the water quality of rivers feeding the lake.
    • Sampling and Rivers: Water quality analysis was done across nine major rivers draining into Loktak, linking land-use patterns with water quality indicators such as dissolved oxygen (DO), biological oxygen demand (BOD), and temperature.
    • Polluted Rivers:
      • Nambul River recorded the lowest oxygen levels and highest organic contamination, influenced by 47% agricultural land and 11% settlement areas in its sub-catchment.
      • Khuga River had the second poorest quality due to 42% shifting cultivation (jhum).
      • Iril and Thoubal Rivers, flowing through dense forested areas, showed better water quality, underscoring the protective role of forests.

    About Loktak Lake:

    • Overview: Situated in Manipur, about 40 km from Imphal, it is the largest freshwater lake in Northeast India.
    • Unique Feature: Known for its floating biomass called phumdi (in the Meitei language), a mixture of soil, vegetation, and organic matter that supports unique aquatic life.
    • Ecological Significance: The Keibul Lamjao National Park, the world’s only floating national park and habitat of the endangered brow-antlered deer (Sangai), forms an integral part of the lake ecosystem.
    • Hydrology: Fed by nine major rivers, including Khuga, Western, Nambul, Imphal, Kongba, Iril, Thoubal, Heirok, and Sekmai and drained through the Ithai Barrage.
    • Global Recognition:
      • Declared a Ramsar Site in 1990, signifying its international ecological importance.
      • Listed under the Montreux Record in 1993 for undergoing ecological degradation.
    • Biodiversity: Hosts 132 plant species and 428 animal species, supporting fisheries, hydropower generation, transport, and tourism.
    • Socioeconomic Role: Provides livelihoods for local communities through fishing, agriculture, and tourism while regulating floods and water supply in the Imphal valley.
    [UPSC 2015] Which of the following National Parks is unique in being a swamp with floating vegetation that supports a rich biodiversity?

    Options:

    (a) Bhitarkanika National Park

    (b) Keibul Lamjao National Park*

    (c) Keoladeo Ghana National Park

    (d) Sultanpur National Park

     

  • World’s Highest Motorable Road constructed at Mig La Pass in Ladakh

    Why in the News?

    The Border Roads Organisation (BRO) has achieved a historic milestone by constructing the world’s highest motorable road at Mig La Pass, situated 19,400 feet above sea level in Ladakh.

    • Strategic Value: Enables rapid troop movement and logistics support in high-altitude sectors; promotes eco-tourism and local trade.

    What is Project Himank?

    • Overview: A flagship Border Roads Organisation (BRO) initiative launched in December 1985 to build and maintain roads in Ladakh’s high-altitude regions.
    • Key Achievements: Built Umling La Road, Chisumle–Demchok, Darbuk–Shyok–DBO, Kargil–Zanskar, and now the Mig La Road (19,400 ft) under severe climatic stress.

    About Mig La Pass:

    • Importance: Crucial for India’s border logistics network, enabling swift troop deployment, supply transport, and surveillance near LAC and LoC.
    • Location: Situated on the Changthang Plateau, eastern Ladakh, near the Line of Actual Control (LAC) with China.
    • Elevation: Stands at 19,400 ft (5,913 m), now the highest motorable road in the world (2025), overtaking Umling La (19,024 ft).
    • Alignment: Lies along the Likaru–Mig La–Fukche route, forming a third strategic link from Hanle to Fukche near the Indo-China border.
    • Connectivity Role: Provides access to remote frontier villages—Hanle, Rongo, Kuyul, and Demchok—improving healthcare, communication, and supply access.
    • Geography: Part of the Changthang cold desert, with thin air, permafrost, and extreme cold, posing major engineering challenges.
    • Historical Link: Follows ancient Indo-Tibetan trade routes, reflecting Ladakh’s role in trans-Himalayan Silk Route exchanges.
    [UPSC 2007] Which one of the following Himalayan passes was reopened around in the middle of the year 2006 to facilitate trade between India and China?

    Options: (a) Chang La (b) Jara La (c) Nathu La* (d) Shipki La

     

  • India’s only Mud Volcano erupts after 20-years in Andamans

    Why in the News?

    India’s only mud volcano at Baratang Island in the Andaman and Nicobar Islands erupted after remaining dormant for over two decades.

    India's only Mud Volcano erupts after 20-years in Andamans

    Note: The Barren Island has erupted recently.

    • India’s only active lava volcano, located about 140 km from Port Blair.
    • Lies at the junction of the Indian and Burmese tectonic plates.
    • Eruption history: 1787 (first recorded), followed by episodes in 1991, 2005, 2017, November 2022, and September 2025.

    About the Baratang Mud Volcano:

    • Location: Baratang Island, around 100–150 km north of Port Blair, situated in the North and Middle Andaman district.
    • Uniqueness: It is India’s only collection of mud volcanoes — 11 in total across the archipelago, 8 of which are on Baratang and Middle Andaman.
    • Eruptions: Significant eruptions were last reported in 2005; the 2025 eruption marks the first major event in 20 years.
    • Composition & Nature:
      • Emits cool mud, water, and gases (methane, hydrogen sulfide) rather than lava or fire.
      • Creates mud cones, bubbling pools, or dried crater-like formations.
      • Eruptions are low in intensity, involving slow oozing and gas bubbling rather than violent explosions.
    • Accessibility: A short 160-metre walk from the nearest road; the site lies near the Jarawa Tribal Reserve, where photography is prohibited for ethical and legal reasons.

    Geological Formation and Features:

    • Tectonic Setting: Formed due to subduction of the Indian Plate beneath the Burmese Plate, leading to gas and fluid release from deep layers.
    • Mechanism:
      • Decomposition of organic matter underground produces gas pressure that pushes mud upwards.
      • These gases, along with water and sediments, escape to the surface, creating muddy eruptions and bubbling vents.
    • Temperature & Composition:
      • The expelled material is cool, unlike magmatic volcanoes.
      • Contains saline water, organic sediments, and gases, giving it a distinctive odour and appearance.
    • Earth Processes: The phenomenon helps scientists study fluid migration, methane emissions, and crustal deformation in active subduction zones.
    [UPSC 2018] Consider the following statements:

    1.The Barren Island volcano is an active volcano located in the Indian territory.

    2.Barren Island lies about 140 km east of Great Nicobar.

    3.The last time the Barren Island volcano erupted was in 1991 and it has remained inactive since then.

    Which of the statements given above is/are correct?

    Options: (a) 1 only * (b) 2 and 3 (c) 3 only (d) 1 and 3

     

  • Bihar adds 2 more Wetlands to Ramsar List

    Why in the News?

    India has added two new wetlands in Bihar, Gokul Jalashay (Buxar district) and Udaipur Jheel (West Champaran district), to the global Ramsar list of Wetlands of International Importance.

    Important Facts:

    • With this, India’s Ramsar sites rise to 93, consolidating its top rank in Asia and third in the world, after the UK (176) and Mexico (144).
      • Bolivia has the largest Ramsar wetland area (Llanos de Moxos wetlands – 6.9 million ha).
    • India’s Ramsar sites have expanded from 26 in 2012 to 93 in 2025, covering 13.6 lakh hectares, with 51 sites added since 2020.
    • Globally, there are 2,544 Ramsar sites.

    Facts about the two Wetlands:

    1. Gokul Jalashay (Buxar District):

      • Oxbow lake spread over 448 hectares on the southern edge of the Ganga River.
      • Acts as a flood buffer during high water events.
      • Supports 50+ bird species and provides livelihoods through fishing, farming, and irrigation.

    2. Udaipur Jheel (West Champaran District):

      • Oxbow lake covering 319 hectares, part of the Udaipur Wildlife Sanctuary ecosystem, formed by the Gandaki River.
      • Enhances ecological connectivity and supports the Central Asian Flyway for migratory birds.

    About the Ramsar Convention:

    • Establishment: Signed on 2 February 1971 in Ramsar, Iran.
    • Objective: Provide a framework for conservation and wise use of wetlands and their resources.
    • Functions:
      • Identify and designate wetlands of international importance.
      • Promote effective management of wetlands.
      • Foster international cooperation for conservation.
    • Members: 173 countries (as of 2025).
    • India and Ramsar:
      • India joined in 1982.
      • First Ramsar site: Chilika Lake, Odisha (1981).
      • Current total: 93 sites (Sept 2025), covering 13,60,718 hectares.
      • Growth: From 26 sites in 2012 to 93 in 2025 (51 added since 2020).
      • State-wise: Tamil Nadu has the highest (20), followed by Uttar Pradesh (10).
      • About 10% of India’s total wetland area is under Ramsar listing.
    • Montreux Record: List of Ramsar sites under threat of ecological change.
      • 48 sites globally (2025).
      • 2 Indian sites included: Keoladeo National Park (Rajasthan) and Loktak Lake (Manipur).
    • World Wetlands Day: Celebrated on February 2nd every year.
      • 2025 Theme: “Protecting Wetlands for Our Common Future”.

    Criteria for Declaration (9 Criteria):

    A wetland can be declared a Ramsar site if it meets at least one of these:

    1. Has unique, rare, or representative wetland types.
    2. Supports vulnerable, endangered, or endemic species.
    3. Provides critical habitat for waterfowl, especially during migration.
    4. Contains significant ecological, botanical, zoological, limnological, or hydrological features.
    5. Supports biodiversity conservation and scientific research.
    6. Provides ecosystem services like flood control, groundwater recharge, and water purification.
    7. Has cultural, spiritual, or recreational importance.
    8. Ensures sustainable livelihoods for local communities.
    9. Faces threats requiring international cooperation for conservation.
    [UPSC 2022] Consider the following pairs:

    Wetland/Lake Location

    1. Hokera Wetland — Punjab 2. Renuka Wetland — Himachal Pradesh

    3. Rudrasagar Lake — Tripura 4. Sasthamkotta Lake — Tamil Nadu

    How many pairs given above are correctly matched?

    Options: (a) Only one pair (b) Only two pairs* (c) Only three pairs (d) All four pairs

     

  • Cold Desert named India’s 13th UNESCO Biosphere Reserve

    Why in the News?

    UNESCO added India’s Cold Desert Biosphere Reserve (CDBR) to the World Network of Biosphere Reserves (WNBR) under the Man and the Biosphere (MAB) programme.

    With this, India now has 13 UNESCO-recognized biosphere reserves out of 18 designated nationally.

    What are UNESCO Biosphere Reserves?

    • Overview: Sites integrating biodiversity conservation + cultural heritage + sustainable development.
    • Programme: MAB (1971).
    • Designation Criteria:
      • Must include a protected core zone.
      • Must represent a unique biogeographical unit.
      • Involve local communities in conservation.
      • Potential to preserve traditional lifestyles.
    • Functions: Conservation, Development, Logistic Support.
    • Global Network (WNBR): 785 sites, 142 countries (2025); 7.4 million sq. km (~5% Earth’s surface); home to 275 million people.

    About Cold Desert Biosphere Reserve (CDBR):

    • Location: Lahaul–Spiti (Himachal Pradesh), part of Trans-Himalayan biogeographic province.
    • Constituents: Includes Pin Valley National Park, Kibber Wildlife Sanctuary, Chandratal Wetland, Sarchu Plains.
    • Biodiversity:
      • Flora:  732 vascular plants, incl. 30 endemic, 47 medicinal plants (Amchi / Sowa Rigpa).
      • Fauna: Snow leopard (flagship), Tibetan wolf, Himalayan ibex, blue sheep (800+ in Spiti), Himalayan snowcock, golden eagle, bearded vulture.
    • Communities: ~12,000 people; practice yak & goat herding, barley/pea farming, Tibetan herbal medicine, Buddhist monastic councils.
    • Significance: Boosts eco-tourism, climate research, community-led conservation, sustainable livelihoods. Supports climate-resilient development in fragile ecosystems.

    cold desert biosphere reserve

    Biosphere Reserves in India:

    • Total: 18 designated, of which 13 in UNESCO-WNBR (as of 2025).
    • First: Nilgiri BR (1986); Largest: Gulf of Kachchh (Gujarat); Smallest: Dibru-Saikhowa (Assam).
    • Scheme: Launched 1986; implemented by MoEFCC under MAB Programme.
    • Three zones: Each biosphere reserve is organised into-
      1. Core zone (strictly protected),
      2. Buffer zone (limited human activity such as research, grazing, and tourism permitted), and
      3. Transition zone (sustainable human settlements and economic activities allowed).
    • Funding: 90:10 (NE & Himalayan states); 60:40 (others).
    [UPSC 2019] Which of the following are in Agasthyamala Biosphere Reserve?

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

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

    (c) Kaundinya, Gundla Brahmeswaram and Papikonda Wildlife Sanctuaries; and Mukurthi National Park

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