Biodiversity

Sundarbans National Park is characterized by the world's largest contiguous mangrove forest delta, inhabited by estuarine crocodiles and Royal Bengal Tigers adapted to swimming in tidal waters.

Jim Corbett National Park, established in 1936 as Hailey National Park in Uttarakhand, was India's first national park.

The International Day for Biological Diversity is celebrated globally on May 22 every year.

To conserve the endangered Snow Leopard (Panthera uncia) and its high-altitude alpine landscape across 5 Himalayan states using inclusive community-based conservation strategies.

Eco-Sensitive Zones are buffer areas notified around National Parks and Wildlife Sanctuaries within a 10 km radius under the Environment (Protection) Act, 1986.

There are currently 36 globally recognized Biodiversity Hotspots.

The Nilgiri Biosphere Reserve, established in 1986, was the first biosphere reserve in India.

Ecosystem diversity refers to the broad variety of habitats, biotic communities, and ecological processes occurring across different biomes.

PBRs are official comprehensive documents compiled by local Biodiversity Management Committees (BMCs) detailing local biological resources, traditional usages, and associated indigenous knowledge.

A region must contain at least 1,500 endemic species of vascular plants (>0.5% of the global total) and must have lost at least 70% of its original primary native vegetation.

It is the only mangrove forest ecosystem in the world inhabited by tigers (Royal Bengal Tigers), where tigers have adapted to swimming across wide tidal channels and drinking saline water.

The Wildlife Institute of India is an autonomous institution under the MoEFCC that conducts wildlife research, training, and academic programs, located in Dehradun, Uttarakhand.

The principle holds that where there is a threat of significant reduction or loss of biological diversity, lack of full scientific certainty should not be used as a reason for postponing cost-effective conservation measures.

The Chief Wildlife Warden of the State holds the statutory authority to grant entry permits and regulate activities within protected areas.

Under Criterion C, the population must be estimated at fewer than 250 mature individuals with an ongoing decline; under Criterion D, the total population must number fewer than 50 mature individuals.

The Hangul, or Kashmir Stag (Cervus hanglu hanglu), is endemic to Dachigam National Park.

Chilika Lake in Odisha is the largest coastal saltwater lagoon in India and was designated as India's first Ramsar site in 1981.

Project Elephant focuses on protecting wild Asian Elephant populations, securing traditional elephant migration corridors, and mitigating human-elephant conflict.

An indicator species is an organism whose presence, absence, or population status reflects the health and environmental quality of an ecosystem.

Biodiversity, short for biological diversity, refers to the variety and variability among living organisms from all sources, including terrestrial, marine, and aquatic ecosystems.

TRAFFIC (Trade Records Analysis of Fauna and Flora in Commerce) is a leading global non-governmental wildlife trade monitoring network operating as a joint conservation alliance of WWF and IUCN.

Elemental mercury and mercury compounds used in artisanal gold mining, coal combustion, and industrial processes.

Wild crop relatives harbor valuable ancestral resistance genes against emerging pests, diseases, droughts, and temperature extremes that have been bred out of modern uniform monoculture crops.

Gamma diversity represents the overall diversity of species across a large region containing multiple ecosystems or landscapes.

Jerdon's Courser is a nocturnal, critically endangered bird endemic to dry scrub forest habitats in Sri Lankamaleswara Wildlife Sanctuary in Andhra Pradesh.

The index is formulated as H' = - SUM (pi * ln pi), where 'pi' represents the proportion of individuals belonging to the i-th species relative to the total number of individuals in the sample.

A taxon is categorized as Least Concern when it has been evaluated against IUCN criteria and does not qualify for Critically Endangered, Endangered, Vulnerable, or Near Threatened status.

An Extinction Vortex occurs when a small population suffers inbreeding depression and genetic drift, causing lower fertility and higher mortality that further shrinks population size in a self-reinforcing downhill spiral.

The Great Indian Bustard is Critically Endangered (CR), inhabiting dry grassland ecosystems (e.g., Desert National Park, Rajasthan), primarily threatened by habitat conversion and high-voltage power line collisions.

Lantana camara forms dense impenetrable thickets, releases allelopathic chemicals that inhibit native plant germination, alters fire regimes, and displaces native forage grasses.

An umbrella species is an organism requiring vast contiguous habitat areas such that protecting its natural range automatically encompasses the habitat needs of many other co-existing species.

CMS protects terrestrial, aquatic, and avian migratory species across their international migratory ranges through legally binding agreements and regional Action Plans.

Conservation Reserves are declared on government-owned land adjacent to national parks or sanctuaries, whereas Community Reserves are declared on private or community-owned land where local volunteers conserve flora and fauna.

Transgene escape via pollen drift can transfer herbicide resistance or insecticidal toxin genes to wild relatives, creating invasive 'superweeds' or disrupting natural insect food webs.

Vulture populations collapsed due to kidney failure caused by consuming livestock carcasses treated with the veterinary anti-inflammatory drug Diclofenac.

Illegal poaching, live trapping, and international smuggling of freshwater turtles and tortoises for the exotic pet trade and meat markets.

To double the world's wild tiger population by the year 2022.

May 22, commemorating the adoption of the final text of the Convention on Biological Diversity (CBD) at the 1992 Rio Earth Summit.

Conservation Reserves are government-owned lands and Community Reserves are private or community-owned lands protected to serve as ecological corridors between established national parks and sanctuaries.

It is the world's only floating national park, located on Loktak Lake in Manipur, serving as the last natural refuge of the critically endangered Sangai (Brow-antlered Deer).

African Catfish are aggressive, air-breathing carnivorous predators that prey indiscriminately on native fish species, amphibians, and crustaceans, causing localized aquatic species extinctions.

CITES is the Convention on International Trade in Endangered Species of Wild Fauna and Flora, an international agreement signed in 1973 to prevent wildlife trade from threatening species survival.

Simpson's Dominance Index is calculated as D = SUM (pi^2); Simpson's Index of Diversity is calculated as 1 - D (or 1 / D as the Reciprocal Index).

1. Trans-Himalaya, 2. Himalaya, 3. Desert, 4. Semi-Arid, 5. Western Ghats, 6. Deccan Peninsula, 7. Gangetic Plain, 8. Coasts, 9. North-East, and 10. Islands.

GEAC is the statutory body under the Environment (Protection) Act, 1986 responsible for approving activities involving large-scale use of hazardous microorganisms and genetically engineered organisms in the environment.

The 2022 Amendment consolidated the original 6 Schedules into 4: Schedule I (specially protected animals with highest penalties), Schedule II (lesser protection), Schedule III (protected plant species), and Schedule IV (specimens listed under CITES).

Species richness is the straightforward count of the number of different species present in a defined geographical area or sample.

British environmentalist Norman Myers introduced the concept of 'Biodiversity Hotspots' in 1988.

It establishes international safety rules for the transboundary movement, handling, and use of Living Modified Organisms (LMOs) resulting from modern biotechnology.

Senna spectabilis is an invasive alien tree that spreads rapidly, shading out native canopy vegetation and suppressing grass growth essential for wild herbivores like elephants and deer.

The Hangul is endemic to the riverine and temperate deciduous forests of Dachigam National Park and adjacent valleys in Jammu and Kashmir.

The Biological Diversity Act, 2002 was enacted to fulfill India's commitments under the CBD.

India harbors 4 Biodiversity Hotspots.

1. Extinct (EX), 2. Extinct in the Wild (EW), 3. Critically Endangered (CR), 4. Endangered (EN), 5. Vulnerable (VU), 6. Near Threatened (NT), 7. Least Concern (LC), 8. Data Deficient (DD), and 9. Not Evaluated (NE).

A species is declared extinct when there is no reasonable doubt that the last remaining individual has died, typically after exhaustive searches in its known habitat over a prolonged period (e.g., 50 years).

It serves as a secure long-term backup facility storing duplicate seed samples from gene banks worldwide to safeguard global crop diversity against catastrophic loss.

The Central Zoo Authority is a statutory body established in 1992 under the Wildlife (Protection) Act to oversee, regulate, and accredit zoological parks in India.

Biopiracy is the unauthorized commercial exploitation or patenting of biological resources and traditional indigenous knowledge without proper consent or fair benefit-sharing.

The 30x30 target commits parties to effectively conserve and manage at least 30% of the world's terrestrial, inland water, coastal, and marine areas by 2030 through protected areas and OECMs.

Critically Endangered (CR), Endangered (EN), and Vulnerable (VU) species are collectively designated as threatened with extinction.

The Nicobar Islands belong to the Sundaland Biodiversity Hotspot, whereas the Andaman Islands belong to the Indo-Burma Biodiversity Hotspot.

The Extent of Occurrence (EOO) must be less than 100 km2, and the Area of Occupancy (AOO) must be less than 10 km2.

Appendix I prohibits international commercial trade in species threatened with extinction; Appendix II regulates trade in non-threatened species to prevent overexploitation; and Appendix III controls species protected at the request of a specific party country.

The Act mandates that foreign individuals and corporate entities obtain prior approval from the National Biodiversity Authority before accessing Indian biological resources or applying for Intellectual Property Rights (IPR).

Extinct in the Wild means a species survives only in captivity, human-controlled cultivation, or as a naturalized population outside its historic natural range.

In-situ conservation protects species within their natural ecosystems and habitats, whereas Ex-situ conservation safeguards threatened species outside their native habitats in human-managed facilities.

In-situ gene banks preserve genetic diversity directly within active dynamic ecosystems (e.g., national parks, on-farm crop conservation), whereas Ex-situ gene banks store isolated seeds, pollen, or tissue culture in artificial cold vaults.

MIKE (Monitoring the Illegal Killing of Elephants) is an international program measuring trends in elephant poaching to support management across designated MIKE sites in India (e.g., Wayanad, Kaziranga, Garo Hills).

Project Tiger was launched on April 1, 1973, from Jim Corbett National Park in Uttarakhand.

An umbrella species is a species with wide habitat requirements whose protection automatically safeguards numerous other co-existing species in the same ecosystem.

It is the world's smallest wild suid, constructing roofed nests made of vegetation, restricted to the dense alluvial tall grasslands of Manas National Park in Assam.

The Botanical Survey of India is an organization established in 1890, headquartered in Kolkata, responsible for surveying, mapping, and documenting the floral resources of India.

The Golden Langur is restricted to the semi-evergreen and moist deciduous forests bounded by the Manas River on the east, Sankosh River on the west, and Brahmaputra River on the south in Assam.

Appendix I completely bans commercial international trade in species threatened with extinction; Appendix II permits strictly controlled trade via export permits; Appendix III regulates trade in species requested by a specific party country.

Species richness is the total count of different species in a given community, whereas species evenness is the relative numerical abundance and distribution of individuals among those species.

India has 18 notified Biosphere Reserves, of which 12 are included in UNESCO's World Network of Biosphere Reserves under the MAB Programme.

Species evenness refers to the relative abundance or proportion with which individuals of each species are distributed in a community.

Keibul Lamjao National Park is famous for being the world's only floating national park, composed of floating mats of soil and vegetation called phumdis.

Species diversity refers to the variety and abundance of different biological species present within a given geographical region or ecosystem.

The Gharial possesses an elongated, narrow snout terminating in a bulbous 'ghara' in adult males, specialized for fish-eating in deep, fast-flowing river systems (e.g., Chambal River).

In National Parks, all human activities including livestock grazing, timber harvesting, and private land ownership are strictly prohibited, whereas in Wildlife Sanctuaries, limited regulated activities like grazing and non-timber forest produce collection may be permitted.

The National Biodiversity Authority (NBA) at the Central level (Chennai), State Biodiversity Boards (SBBs) at the State level, and Biodiversity Management Committees (BMCs) at the Local body level.

Prosopis juliflora spreads rapidly in arid and semi-arid regions, outcompeting native flora, depleting groundwater, and reducing local plant biodiversity.

The Economics of Ecosystems and Biodiversity (TEEB) study.

WCCB collects and collates intelligence on organized wildlife crime, coordinates cross-border anti-poaching operations, maintains a national wildlife crime database, and assists international enforcement agencies.

Criteria include harboring rare or unique wetland types, supporting vulnerable or endangered species, supporting >20,000 waterbirds, or supporting >1% of individuals in a population of a waterbird/fish species.

R.H. Whittaker divided biodiversity measurement into Alpha, Beta, and Gamma diversity.

The Forest Owlet is a critically endangered diurnal owl threatened by illegal timber cutting, loss of deciduous forest hollow trees required for nesting, and local superstitious trapping.

NBPGR acts as the nodal national institution for the acquisition, management, characterization, and long-term ex-situ conservation of plant genetic resources for food and agriculture.

The Deccan Peninsula is the largest biogeographical zone in India.

Keoladeo National Park (Rajasthan) and Loktak Lake (Manipur) are currently listed on the Montreux Record; Chilika Lake (Odisha) was listed in 1993 but removed in 2002 following successful ecological restoration.

Inbreeding depression is reduced fitness caused by mating between close relatives exposing deleterious recessive alleles; outbreeding depression is reduced fitness caused by mating between genetically distant stocks breaking locally adapted gene complexes.

It serves as a primary frugivore and seed disperser for canopy rainforest trees, specialized in feeding on native fruits like Cullenia exarillata.

A species is classified as a restricted-range species if its historical total breeding area is estimated to be less than 50,000 km2.

The relationship is expressed as S = c * A^z, which log-transforms into the linear equation: log S = log c + z * log A.

An OECM is a geographically defined area outside formal protected areas that achieves sustained, effective in-situ conservation of biodiversity alongside local socio-economic uses.

Pink pages list critically endangered species facing extinction, whereas green pages list species that were formerly threatened but have recovered to stable populations.

Ingestion of the non-steroidal anti-inflammatory drug (NSAID) Diclofenac present in cattle carcasses caused acute renal failure and visceral gout in vultures.

The Forest Rights Act (FRA) of 2006 legalizes individual land holdings and community forest resource rights for forest-dwelling communities who have resided on forest lands for generations.

An endemic species is restricted to a specific, localized geographical zone and found nowhere else, whereas a cosmopolitan species is distributed globally across multiple continents and biomes.

Biodiversity Heritage Sites are unique, ecologically fragile areas notified by State Governments in consultation with local bodies under Section 37 of the Act.

CZA establishes minimum standards for animal housing, healthcare, and veterinary care in Indian zoos, regulates animal transfers, and approves or denies zoo recognition.

A region must contain at least 1,500 endemic species of vascular plants (>0.5% of world total) and must have lost at least 70% of its original primary native vegetation.

TEEB is a global study initiated by the G8+5 countries and UNEP in 2007 to highlight the economic benefits of biodiversity and quantify the global costs of ecosystem degradation.

Bioprospecting is the systematic search, collection, and exploration of wild biological resources for valuable genetic or biochemical compounds for commercial pharmaceutical or agricultural use.

The National Tiger Conservation Authority (NTCA) oversees Tiger Reserves.

The Dugong (Dugong dugon) is a herbivorous marine mammal known as the Sea Cow, categorized as Vulnerable (VU).

An OECM is a geographically defined area outside formal protected areas that achieves positive, sustained in-situ biodiversity conservation; the Aravalli Biodiversity Park in Gurugram was designated as India's first OECM.

Sholas are stunted tropical montane evergreen forests occupying sheltered valleys surrounded by undulating high-altitude grasslands.

India is classified into 10 distinct biogeographical zones.

The Ramsar Convention is an intergovernmental treaty adopted in 1971 in Ramsar, Iran, for the conservation and wise use of wetlands of international importance.

The Nagoya Protocol creates a transparent legal framework for the fair and equitable sharing of benefits arising from the utilization of genetic resources (Access and Benefit-Sharing, ABS).

The Ramsar Convention is an international treaty adopted in 1971 in Ramsar, Iran, for the conservation and sustainable use of wetlands; India signed the treaty in 1982.

Examples of Ex-situ conservation include Zoological Parks, Botanical Gardens, Seed Banks, Gene Banks, Aquariums, Tissue Culture Labs, and Cryopreservation facilities.

In National Parks, no human rights or private land holdings are permitted and livestock grazing is strictly prohibited, whereas in Wildlife Sanctuaries, limited rights and regulated grazing may be allowed by the Chief Wildlife Warden.

Estuaries and mangroves receive continuous nutrient inputs from river runoff and tidal flushing, forming sunlit, sheltered nursery zones supported by detritus-based food webs.

Storage in liquid nitrogen at -196°C freezes molecular kinetic energy, arresting all metabolic activity, enzymatic degradation, and cellular respiration without structural ice crystal damage.

A flagship species is a charismatic, popular animal chosen as an icon to mobilize public emotional support, awareness, and conservation funding.

There are 17 recognized megadiverse countries globally, and India is one of them.

The Namdapha Flying Squirrel (Biswamoyopterus biswasi) is a critically endangered arboreal mammal endemic to the temperate mesic forests of Namdapha.

The Core Zone is strictly protected with zero human interference; the Buffer Zone allows research, environmental education, and low-impact tourism; the Transition Zone supports sustainable human settlements, agriculture, and forestry.

The Lion-tailed Macaque (Macaca silenus) is endemic to the Western Ghats.

The Dugong is an obligate marine herbivore feeding exclusively on seagrasses, found primarily in the Gulf of Mannar, Palk Bay, Gulf of Kutch, and Andaman & Nicobar Islands.

The Nilgiri Tahr is an endangered wild ungulate endemic to the high-altitude shola-grassland ecosystems of the Western Ghats (e.g., Eravikulam National Park, Kerala).

BirdLife International is a global conservation partnership of non-governmental organizations dedicated to conserving wild birds, their habitats, and global biodiversity.

HIPPO stands for Habitat destruction, Invasive species, Pollution, Population growth, and Over-harvesting.

Operation Save Kurma was a species-specific enforcement operation launched by WCCB to combat the illegal poaching and live smuggling of freshwater turtles and tortoises in India.

A Biosphere Reserve is a large protected area designated to conserve representative ecosystems while promoting sustainable economic development and scientific research.

The Shannon-Wiener Index and the Simpson Index are the two most widely used indices that combine species richness and evenness.

An indicator species is an organism whose presence, absence, or population health reflects specific environmental conditions or pollution levels; lichens indicate atmospheric sulfur dioxide (SO2) levels.

The Wildlife Crime Control Bureau (WCCB) is the statutory body created in 2007 under the Wildlife (Protection) Act to combat organized wildlife crime.

The Gangetic River Dolphin is categorized as Endangered (EN).

National Parks and Wildlife Sanctuaries are established under the provisions of the Wildlife (Protection) Act, 1972.

Eichhornia crassipes (Water Hyacinth) is known as the Terror of Bengal; it forms dense mats that block sunlight, cut surface oxygen exchange, and cause hypoxic aquatic dead zones.

A flagship species is a charismatic, popular animal chosen as an icon or symbol to leverage public support and funding for broader conservation campaigns.

The Gram Sabha serves as the statutory authority to initiate the process for determining the nature and extent of individual and community forest rights (CFR).

GSLEP unites 12 snow leopard range countries to identify and secure at least 20 snow leopard landscapes across High Asia.

Foreign entities must obtain mandatory prior approval from the National Biodiversity Authority (NBA) in Chennai before accessing Indian biological resources or applying for Intellectual Property Rights (IPR).

An ecological corridor is a linear habitat strip connecting isolated protected areas that enables wild animal migration, foraging, and gene flow across landscapes.

REDD+ (Reducing Emissions from Deforestation and Forest Degradation) is a UN climate initiative under the UNFCCC that offers financial incentives to developing nations to conserve forests, enhance carbon stocks, and manage land sustainably.

Biopiracy is the unauthorized commercial exploitation or patenting of indigenous biological resources and traditional knowledge without permission or benefit sharing.

The Royal Bengal Tiger is categorized as Endangered (EN).

BSI (established 1890, Kolkata) surveys and documents national floral resources and plant herbatoria; ZSI (established 1916, Kolkata) surveys and documents faunal taxonomies and animal species distributions.

Removing the top predator releases herbivore or mesopredator populations from top-down control, causing severe overgrazing of vegetation or collapse of smaller prey species across lower trophic levels.

The Sangai Deer inhabits floating biomass mats composed of vegetation, soil, and organic matter called 'Phumdis' inside Keibul Lamjao National Park on Loktak Lake.

Alpha diversity measures local species richness within a single habitat; Beta diversity measures the rate of species turnover between distinct habitats; Gamma diversity measures overall species richness across an entire landscape.

Kaziranga National Park in Assam.

The headquarters of the National Biodiversity Authority is located in Chennai, Tamil Nadu.

The Great Indian Bustard is categorized as Critically Endangered (CR).

Kaziranga National Park in Assam harbors the largest population of the Greater One-Horned Rhinoceros.

Sacred groves act as undisturbed climax forest islands protected by religious taboos, preserving endemic flora, ancient seed trees, medicinal plants, and soil micro-fauna.

Key examples of In-situ conservation include National Parks, Wildlife Sanctuaries, Biosphere Reserves, Conservation Reserves, Community Reserves, and Sacred Groves.

The International Union for Conservation of Nature (IUCN) publishes the Red List.

Project Snow Leopard aims to conserve the endangered Snow Leopard (Panthera uncia) and its high-altitude alpine ecosystem across 5 Himalayan states.

The Nicobar Islands form part of the Sundaland Biodiversity Hotspot.

M-STrIPES (Monitoring System for Tigers - Intensive Protection and Ecological Status) uses GPS-enabled mobile apps for field patrol tracking and desktop GIS analytics for habitat and poaching threat monitoring.

The Core area is maintained as an inviolate space strictly reserved for wildlife conservation without human disturbance, whereas the Buffer area allows forestry, traditional land use, and co-existence measures.

Parthenium spreads rapidly over degraded land, secretes parthenin allelochemicals that suppress native plant growth, and causes severe allergic dermatitis and respiratory asthma in humans.

The KM-GBF set 23 global targets for 2030, including the flagship '30x30' target to effectively conserve at least 30% of the Earth's land, coastal, and ocean areas by 2030.

A Zoological Park is an ex-situ facility where wild animals are held in artificial enclosures under human care for public exhibition and captive breeding, whereas a Wildlife Sanctuary is an in-situ natural protected area.

An ecological corridor is a linear strip of natural vegetation that physically connects fragmented protected areas, enabling wild animal migration and gene flow between isolated populations.

The Montreux Record is a register of Ramsar wetland sites where adverse changes in ecological character have occurred, are occurring, or are likely to occur due to human interference.

A species is Extinct in the Wild when it survives only in captivity, cultivation, or as a naturalized population outside its historic native range.

Natural habitat loss and fragmentation is the single primary cause of species extinction and biodiversity loss worldwide.

The Cartagena Protocol on Biosafety (2000) is an international agreement that governs the safe transfer, handling, and use of Living Modified Organisms (LMOs) resulting from modern biotechnology.

The 2022 Amendment reduced the total number of schedules from 6 to 4.

Yes, the Western Ghats hotspot region extends to include the island of Sri Lanka.

An endemic species is a plant or animal species restricted to a specific geographical region and found nowhere else in the world.

Project Elephant was launched in February 1992 as a Centrally Sponsored Scheme.

A keystone species exerts a disproportionately large control on ecosystem structure and community diversity relative to its abundance; removing it causes trophic cascades and community collapse.

Cryopreservation is the storage of seeds, pollen, sperm, eggs, or embryos at ultra-low temperatures in liquid nitrogen (-196°C).

The Nagoya Protocol (2010) is a supplementary agreement that establishes a legal framework for Access and Benefit-Sharing (ABS) of genetic resources.

The Wildlife (Protection) Act, 1972 was enacted to protect wild animals, birds, and plants across India.

The IUCN Red List comprises 9 official categories.

The Sangai Deer (Cervus eldi eldi) inhabits the floating phumdis (organic biomass mats) of Keibul Lamjao National Park on Loktak Lake, Manipur.

The model states that species richness on an island represents a dynamic equilibrium determined by the balance between immigration rates (influenced by distance from mainland) and extinction rates (influenced by island area).

A Biosphere Reserve is structured into three zones: the Core Zone, the Buffer Zone, and the Transition (or Outer) Zone.

A population reduction of 90% or more over 10 years or three generations (when causes are reversible and understood) qualifies a species as Critically Endangered under Criterion A.

The Act established the National Biodiversity Authority (NBA) at the central level, State Biodiversity Boards (SBBs) at the state level, and Biodiversity Management Committees (BMCs) at the local level.

Alpha diversity refers to the species diversity and richness found within a specific, local ecosystem or community.

The Crocodile Conservation Project was initiated in 1975 with assistance from the UNDP and FAO.

IBAs are non-statutory conservation sites identified by BirdLife International and BNHS based on standardized ornithological criteria; nearly 40% of Indian IBAs lack formal legal protection under the Wildlife Protection Act.

The Gangetic River Dolphin is functionally blind (lacking a crystalline eye lens) and relies entirely on sophisticated Echolocation (sonar clicks) to navigate and hunt fish in turbid waters.

The Allee Effect occurs when individual fitness or population growth rate declines at very low population densities due to difficulties in finding mates, group defense breakdown, or cooperative foraging failure.

Prosopis juliflora utilizes deep taproots to drain groundwater tables, secretes allelopathic root exudates, and outcompetes native desert trees like Acacia nilotica and Prosopis cineraria.

Gir National Park and Wildlife Sanctuary in Gujarat is the sole natural habitat of the Asiatic Lion (Panthera leo persica).

Beta diversity measures the degree of change or turnover in species composition along an environmental or geographical gradient between different communities.

Genetic diversity is the variation in genetic information and allele combinations present among individuals of a single species.

TRAFFIC (Trade Records Analysis of Fauna and Flora in Commerce) is a leading global non-governmental wildlife trade monitoring network established in 1976 as a joint alliance of WWF and IUCN.

The Gharial (Gavialis gangeticus), Mugger Crocodile (Crocodylus palustris), and Saltwater Crocodile (Crocodylus porosus).

Project Tiger was launched in 1973 from Corbett National Park, using a 'core-buffer' strategy to eliminate human interference in core tiger habitats while managing surrounding buffer zones.

The Zoological Survey of India is a premier research organization established in 1916, headquartered in Kolkata, dedicated to taxonomic survey and faunal exploration across India.

TKDL is a digital repository established by India (CSIR and AYUSH) that translates traditional medicinal knowledge (Ayurveda, Unani, Siddha) into multiple international languages to prevent biopiracy.

An invasive alien species is a non-native plant or animal introduced outside its natural range that spreads aggressively, threatening native species and local ecosystems.

The three primary levels of biodiversity are genetic diversity, species diversity, and ecosystem (or community) diversity.

In-situ conservation protects species within their natural habitats, whereas Ex-situ conservation protects threatened species outside their natural habitats in controlled environments.

Eco-Sensitive Zones are notified by the Central Government under Section 3 of the Environment (Protection) Act, 1986, typically extending up to a 10 km radius around National Parks and Sanctuaries.

A keystone species is an organism that exerts a disproportionately large, essential influence on the structure, function, and balance of its ecosystem relative to its abundance.

It promotes sustainable land management, biodiversity conservation, and local community livelihoods across high-altitude Himalayan ecosystems in four states (Ladakh/J&K, Himachal Pradesh, Uttarakhand, Sikkim).

India covers approximately 2.4% of the global land area, yet supports nearly 7% to 8% of the world's recorded floral and faunal species diversity.

IBAs are key sites identified worldwide by BirdLife International using standardized criteria to conserve globally threatened, restricted-range, or congregatory bird populations.

Gir National Park and Wildlife Sanctuary.