Why this chapter matters for UPSC: Conservation biology is one of the highest-yield GS3 topics. Prelims tests species status, protected area categories, Project Tiger statistics, Ramsar sites, and IUCN Red List categories year after year. This chapter lays the conceptual foundation for all of it.

PART 1 — Quick Reference Tables

Protected Area Categories — Key Differences

Feature National Park Wildlife Sanctuary Biosphere Reserve
Strictness Highest Moderate Varies by zone
Human habitation Not allowed Permitted (in some areas) Allowed in buffer/transition
Grazing/cultivation Prohibited May be permitted Allowed in buffer zone
Authority Central/State govt Central/State govt UNESCO designation + govt
India count (2024) 106 NPs 567 WLS 18 BRs (12 UNESCO-recognised)
First in India Jim Corbett NP (1936) Bharatpur/Keoladeo (birds) Nilgiris BR (2000, UNESCO)

IUCN Red List Categories

Category Abbreviation Meaning
Extinct EX Last individual dead; no reasonable doubt
Extinct in the Wild EW Survives only in captivity/cultivation
Critically Endangered CR Extremely high risk of extinction
Endangered EN High risk of extinction
Vulnerable VU High risk of becoming Endangered
Near Threatened NT Close to qualifying for threatened category
Least Concern LC Widespread and abundant

India's Key Conservation Projects

Project Year Started Target Species Key Reserve
Project Tiger 1973 Bengal Tiger Jim Corbett, Ranthambore, Kaziranga
Project Elephant 1992 Asian Elephant Nilgiris, Brahmaputra Valley
Project Snow Leopard 2009 Snow Leopard Ladakh, Himachal Pradesh
Crocodile Conservation 1975 Mugger, Saltwater, Gharial Odisha (Bhitarkanika)
Cheetah Reintroduction 2022 Cheetah (Acinonyx jubatus) Kuno NP, Madhya Pradesh
Sea Turtle Conservation Ongoing Olive Ridley, Leatherback Odisha (Gahirmatha, Rushikulya)

PART 2 — Detailed Notes

Deforestation — Causes and Consequences

Key Term

Deforestation: Permanent removal of forest cover and conversion to non-forest land use — agriculture, urbanisation, infrastructure (roads, dams), mining, and industry.

India's forest cover: According to the India State of Forest Report (ISFR) 2023 (Forest Survey of India), India's total forest and tree cover is 827,357 sq km — approximately 24.84% of India's geographic area. The National Forest Policy 1988 sets a target of maintaining forest cover on 33% of geographic area. India remains significantly below this target.

India's deforestation drivers: Linear infrastructure (highways, railways), mining in forests (Supreme Court order on forest land diversion), hydro-electric projects (Ken-Betwa river link), agricultural expansion in tribal areas.

UPSC Connect

UPSC GS3 — Forest Conservation Law:

  • Forest Conservation Act 1980 (FCA): Requires Central government approval for diversion of forest land to non-forest uses. Amended in 2023 (Forest Conservation Amendment Act 2023) to exempt certain categories of land from its ambit — contested by environmentalists.
  • Compensatory Afforestation: When forest land is diverted, equivalent non-forest or degraded forest land must be afforested — managed by Compensatory Afforestation Fund Management and Planning Authority (CAMPA).
  • Van Rights Act (Forest Rights Act 2006): Recognises rights of forest-dwelling communities (Scheduled Tribes and Other Traditional Forest Dwellers) over forest land and resources — key tension with conservation-centric approaches.

Protected Areas — Types and Significance

Biosphere Reserves (BRs): UNESCO Man and Biosphere (MAB) Programme designates BRs — large landscapes with three concentric zones:

  1. Core zone: Strictly protected; no human disturbance
  2. Buffer zone: Limited research, tourism, education
  3. Transition/Cooperation zone: Sustainable use by local communities; human settlements allowed

India has 18 Biosphere Reserves. UNESCO-recognised (12) include:

  • Nilgiris BR (2000): India's first UNESCO-recognised BR; largest in India; covers parts of Tamil Nadu, Kerala, Karnataka; harbours Nilgiri Tahr, Asian Elephant, Bengal Tiger
  • Sundarbans BR (2001): Mangrove ecosystem; Bengal Tiger; Irrawaddy Dolphin
  • Gulf of Mannar (2001): Marine BR; dugong, sea cucumber, coral reefs
  • Nanda Devi (2004): High altitude Himalayan ecosystem
  • Pachmarhi (2009): Central India; Satpura range
  • Agasthyamala (2016): Western Ghats; extremely high plant endemism
UPSC Connect

UPSC GS3 — Ramsar Wetlands: India has 85 Ramsar sites (wetlands of international importance) as of early 2026 — the highest number in the world, covering approximately 13.98 lakh hectares. Ramsar Convention on Wetlands was signed in Ramsar, Iran in 1971 (entered force 1975). India acceded in 1982.

Important Indian Ramsar sites: Chilika Lake (Odisha — largest coastal lagoon in Asia; flamingos, Irrawaddy Dolphin), Keoladeo Ghana NP (Rajasthan — bird sanctuary), Loktak Lake (Manipur — floating phumdis; Sangai/Brow-antlered Deer), Sundarbans (West Bengal), Wular Lake (J&K), Sambhar Lake (Rajasthan — largest inland saltwater lake; migratory flamingos).

Montreux Record: Ramsar sites facing ecological change due to human interference are listed on the Montreux Record — Chilika Lake was on it (removed after restoration); Keoladeo Ghana NP remains on it.

Endemic Species and Biodiversity Hotspots

Key Term

Endemic species: Species restricted to a particular geographic area and found nowhere else in the world naturally. High endemism areas are biodiversity hotspots — especially vulnerable to extinction because if the area is destroyed, the species has no refuge.

India's biodiversity hotspots (as per Norman Myers/CI definition):

  • Western Ghats (shared with Sri Lanka): ~5,000 flowering plant species (1,700 endemic); lion-tailed macaque, Malabar giant squirrel, Nilgiri Tahr
  • Eastern Himalayas (Indo-Burma): Red Panda, clouded leopard, many orchid species
  • Sundaland: Includes Andaman & Nicobar Islands — high marine and terrestrial endemism

India is one of the 17 megadiverse countries recognised by the Convention on Biological Diversity (CBD) — countries harbouring majority of Earth's species.

Species Conservation — India's Key Programmes

UPSC Connect

UPSC GS3 — Project Tiger: Launched in 1973 under Indira Gandhi's government in response to alarming tiger population decline (India's tiger population fell from ~40,000 in early 20th century to ~1,827 in 1972 census).

Current status: India has 53 Tiger Reserves (as of 2024). Tiger Census 2022 (All India Tiger Estimation, 5th cycle): 3,682 tigers — an all-time high; India now harbours ~70% of world's wild tiger population. Key reserves: Jim Corbett (highest density), Kaziranga, Bandipur, Nagarhole, Ranthambore.

NTCA (National Tiger Conservation Authority): Statutory body under Wildlife Protection Act 1972 (amended 2006) that oversees Tiger Reserves.

UPSC Connect

UPSC GS3 — Cheetah Reintroduction: Cheetah (Acinonyx jubatus) became extinct in India in 1952 (last sighted in Koriya, Chhattisgarh; hunted by Maharaja Ramanuj Pratap Singh). On 17 September 2022, PM Modi released 8 Namibian cheetahs at Kuno National Park (Madhya Pradesh) — the world's first intercontinental cheetah translocation. Another 12 South African cheetahs were translocated in February 2023.

Progress and challenges: As of early 2026, several cheetahs have died (disease, territorial injuries, health complications). The programme faces criticism regarding habitat adequacy, prey availability, veterinary capacity, and long-term viability. Kuno's area (~750 sq km) may be too small for a viable cheetah population. Discussions on establishing a second site (Gandhi Sagar, MP; or Banni grasslands, Gujarat).

Migration — India's Notable Migratory Species

  • Amur Falcon: Smallest falcon; breeds in eastern Russia/northeast China → migrates to southern Africa via Northeast India (Nagaland, Manipur); historically mass-hunted in Nagaland until community conservation reversed the trend
  • Bar-headed Goose: Breeds in Tibetan plateau; overwinters in Indian wetlands (Chilika, Bharatpur); famous for flying over the Himalayas at extreme altitude
  • Olive Ridley Sea Turtle: Mass nesting (arribada) at Gahirmatha Beach (Odisha) — world's largest such event; also Rushikulya coast; threatened by fishing nets (bycatch) → TED (Turtle Excluder Devices) made mandatory
  • Siberian Crane: Critically Endangered; previously wintered at Keoladeo Ghana NP, Bharatpur — no sightings in India since ~2002; considered locally extinct as a wintering species
UPSC Connect

UPSC GS3 — Global Biodiversity Framework: Kunming-Montreal Global Biodiversity Framework (GBF), 2022: Adopted at CBD COP15 (December 2022, Montreal, Canada — originally planned for Kunming, China). Key target: "30x30" — protect 30% of land and 30% of oceans by 2030. Also includes targets to reduce harmful subsidies to biodiversity (eliminate ~$500 billion in subsidies harmful to nature by 2030) and mobilise $200 billion/year for biodiversity finance.

India's position: Supportive of 30x30; India's current protected area network covers ~5% of geographic area (NPs + WLS + CRs); needs significant expansion to meet 30x30.

CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora): India hosted COP19 of CITES in November 2022 at Gandhinagar, Gujarat — 183 countries participated; decisions on listing of sharks, elephants, and timber species.

Exam Strategy

Prelims traps:

  • Biosphere Reserve allows human habitation in buffer/transition zones — National Park does NOT allow any habitation or grazing
  • India has 85 Ramsar sites (early 2026) — highest in the world by count; UK has most by area
  • Nilgiris was India's first UNESCO Biosphere Reserve (2000) — NOT first Biosphere Reserve declared (that was Nilgiris BR in 1986 under MAB, but UNESCO recognition came in 2000)
  • Jim Corbett NP = first NP in India (1936) — originally Hailey NP; renamed after Jim Corbett in 1957
  • Tiger Census 2022 count: 3,682 — highest ever; ~70% of world's wild tigers in India
  • Cheetah reintroduction: Kuno NP, September 2022, Namibian cheetahs (African cheetah, not Asiatic)
  • Olive Ridley turtles: Gahirmatha = world's largest arribada (mass nesting)
  • Amur Falcon: Nagaland → Africa migration; community conservation success story

Mains angles:

  • Evaluate India's protected area network — adequacy and gaps
  • Cheetah reintroduction: policy rationale, ecological suitability, lessons from implementation
  • Balancing tribal rights (FRA 2006) with conservation goals

Previous Year Questions

Prelims:

  1. Which of the following is/are correctly matched?

    1. Nilgiris Biosphere Reserve — first UNESCO-recognised BR in India
    2. Jim Corbett National Park — first National Park in India
    3. Gahirmatha Beach — famous for mass nesting of Olive Ridley turtles
      Select the correct answer:
      (a) 1 and 2 only
      (b) 2 and 3 only
      (c) 1, 2 and 3
      (d) 1 and 3 only

  2. With reference to the Kunming-Montreal Global Biodiversity Framework (2022), the "30x30" target refers to:
    (a) Reducing invasive species by 30% and restoring 30% of degraded ecosystems
    (b) Providing $30 billion for biodiversity by 2030
    (c) Protecting 30% of land areas and 30% of oceans by 2030
    (d) Reducing harmful subsidies by 30% and mobilising $30 billion in finance

  3. "Arribada", a term sometimes seen in the news, refers to:
    (a) Mass migration of Bar-headed Geese across the Himalayas
    (b) Mass nesting of Olive Ridley sea turtles on a beach
    (c) Seasonal congregation of flamingos at Sambhar Lake
    (d) Group movement of elephants across international boundaries

Mains:

  1. India's tiger conservation is often cited as a model for global wildlife recovery. Critically examine the role of Project Tiger in India's tiger recovery, and discuss the challenges remaining for long-term tiger conservation. (CSE Mains 2022, GS Paper 3, 15 marks)

  2. The Forest Rights Act 2006 and conservation of biodiversity present a tension in India's governance of natural resources. How can the rights of forest-dwelling communities be reconciled with ecological conservation imperatives? (CSE Mains 2021, GS Paper 3, 15 marks)