Tiger
- NOTOC**
Tiger Conservation, Recovery, Threats, and Human Coexistence
The tiger (Panthera tigris) remains one of the world's most recognizable threatened predators and one of the most important flagship species for large-scale wildlife conservation. After decades of severe population decline, habitat loss, prey depletion, hunting, and trafficking, several tiger populations have begun to recover. The recovery, however, is highly uneven. Tigers are increasing in parts of India, Nepal, Thailand, China, and Russia while remaining critically depleted or locally absent from portions of their former range in Southeast and Central Asia.
The modern tiger conservation challenge therefore extends beyond simply increasing the number of animals. Long-term recovery requires sufficiently large and connected habitats, abundant wild prey, genetic exchange between populations, effective protection from poaching, community support, and the ability of people and tigers to coexist in increasingly human-dominated landscapes.
Global Tiger Recovery
Tiger conservation has produced significant successes in several parts of Asia. A widely reported global estimate announced in 2023 placed the number of wild tigers at approximately 5,574. Although estimates and monitoring methods differ between countries, the broader trend demonstrated that focused conservation can stabilize and rebuild populations when breeding animals, prey, habitat, and law enforcement are adequately protected.
India represents the largest center of wild tiger recovery. Protected areas, anti-poaching programs, prey restoration, scientific monitoring, habitat management, and legal protection have contributed to substantial population growth. Research nevertheless shows that national population totals alone can obscure important differences between regions and individual populations.
Nepal provides another major example. Its tiger population increased dramatically after 2010, reaching an estimated 355 animals in the 2022 national survey. Sources from 2026 report an estimate of 429 tigers. Growth has not been uniform across Nepal, however, and the country's conservation debate increasingly emphasizes carrying capacity, connectivity, conflict prevention, and coexistence rather than simply pursuing ever-higher numerical targets.
Thailand has also recorded encouraging recovery in portions of the Western Forest Complex. Sustained ranger patrols, habitat protection, monitoring, water management, and recovery of prey populations have supported breeding populations. Eastern Thailand retains another important Indochinese tiger population, although limited prey and highways constrain expansion.
These successes demonstrate that tiger decline is not necessarily irreversible. Where governments, conservation organizations, scientists, local communities, and protected-area managers maintain long-term protection, even severely depleted tiger populations can recover.
Habitat, Corridors, and Landscape Connectivity
Protected areas form the core of tiger conservation, but isolated reserves are rarely sufficient for a wide-ranging predator. Tigers disperse over considerable distances, particularly when young animals leave their natal territories. Their survival therefore depends on forests, corridors, stepping-stone habitats, and other landscapes connecting breeding populations.
India illustrates this problem clearly. Increasing tiger populations are pushing animals beyond reserve boundaries and into landscapes fragmented by highways, railways, farms, settlements, mines, and other infrastructure. Maintaining corridors between protected areas is increasingly essential for both demographic and genetic reasons.
Genetic studies from central India and the Terai Arc demonstrate that forest corridors can maintain gene flow between otherwise separated tiger populations. When these connections disappear, populations may become isolated even if the number of animals within individual reserves temporarily remains high.
Roads can create particularly serious barriers. Research from Nepal shows that vehicle traffic alters tiger movement, while studies of Amur tigers document mortality caused by vehicle collisions. Wildlife crossings, careful infrastructure planning, protection of forest corridors, and restrictions on development in critical movement areas can therefore become as important as management inside protected reserves.
Landscape-scale conservation also allows tigers to recolonize former habitat. Research has identified substantial portions of the species' historical range where recovery may remain possible if prey populations, habitat integrity, political support, law enforcement, and community acceptance can be restored.
Prey and Ecological Carrying Capacity
A tiger population cannot recover without sufficient prey. Deer, wild pigs, bovids, and other large herbivores provide the energetic foundation supporting breeding tiger populations.
Research from India, Nepal, Thailand, Laos, Sumatra, and Bangladesh repeatedly demonstrates the connection between prey abundance and tiger density. Forests may appear structurally intact yet support few tigers when hunting has depleted the large mammals on which predators depend.
This phenomenon is especially important in parts of Southeast Asia, where apparently extensive forests can become "empty forests" after persistent hunting removes both predators and prey.
Prey restoration is therefore a central component of tiger conservation. It may require stronger anti-poaching patrols, grassland management, water restoration, hunting restrictions, habitat improvement, and recovery of native herbivore populations.
Adequate wild prey can also reduce human-tiger conflict. When natural prey becomes scarce, tigers may be more likely to attack livestock, increasing economic losses and hostility among nearby communities.
Human-Tiger Conflict and Coexistence
Population recovery creates a paradox for tiger conservation. More tigers can represent ecological success while simultaneously increasing encounters between predators and people.
Nepal illustrates this challenge particularly clearly. As tiger numbers increased, attacks on people, livestock losses, compensation disputes, forest dependence, road construction, and concern about animals leaving protected areas became increasingly prominent conservation issues.
Studies suggest that conflict risk is influenced by numerous factors, including prey abundance, vegetation, human movement, livestock management, tiger age and physical condition, and the amount of time people spend inside forests.
Only a minority of tigers may become persistent conflict animals. Injured, old, transient, or otherwise impaired animals can sometimes be disproportionately involved in attacks. This suggests that conflict management should distinguish between broad landscape-level risk and individual problem animals rather than treating every tiger near people as equally dangerous.
Possible responses include early-warning programs, livestock protection, compensation and insurance, reducing dangerous forest dependence, habitat management, education, targeted intervention, and in some cases capture or translocation of particular animals.
Social and cultural conditions are equally important. Research from Nepal and Sumatra shows that attitudes toward tigers can be influenced by tourism benefits, livelihoods, education, cultural traditions, spiritual beliefs, past encounters, and perceptions of whether conservation costs and benefits are distributed fairly.
Long-term tiger recovery therefore depends not simply on creating space for tigers but on making coexistence socially and economically viable for people who share those landscapes.
Poaching and Illegal Tiger Trade
Illegal killing remains one of the most serious threats to wild tigers. Tigers are trafficked for skins, bones, teeth, claws, meat, traditional medicines, ornaments, and other products.
TRAFFIC analyses covering decades of seizures document persistent illegal trade across Asia. Changing consumer demand has also created evolving markets for tiger products, including processed items such as tiger-bone glue.
Enforcement does not end with confiscating wildlife products. A 2026 analysis of tiger trafficking in Southeast Asia highlighted weaknesses between seizure and sentencing, including cases where arrests failed to result in meaningful convictions or penalties.
Legal inconsistencies between countries can create additional opportunities for traffickers. Effective enforcement therefore requires trained investigators, forensic capacity, meaningful penalties, international cooperation, regulation of captive facilities, intelligence sharing, and efforts to reduce consumer demand.
Captive tiger breeding can create additional conservation concerns when animals or their body parts enter commercial markets. Conservation breeding programs intended to preserve genetic diversity must therefore be clearly distinguished from facilities whose breeding practices may contribute to demand for tiger products.
Genetics and Population Connectivity
Modern genetics has transformed tiger conservation. DNA obtained from tissue, hair, scat, and other material can identify individuals, estimate populations, determine sex, investigate ancestry, measure gene flow, and sometimes help determine the geographic origin of confiscated tiger products.
Genetic research confirms that geographic tiger populations contain important evolutionary differences. Conservation strategies therefore cannot rely exclusively on maximizing the global number of tigers. Maintaining regional genetic diversity is also important.
Small isolated populations face particular risks from inbreeding and loss of genetic diversity. The unusually dark or pseudomelanistic tigers of India's Similipal Tiger Reserve illustrate how isolation can amplify unusual genetic traits within a restricted population.
Studies across India and Nepal demonstrate that functioning forest corridors allow tigers to disperse between populations and maintain genetic exchange. Landscape connectivity consequently has both ecological and evolutionary importance.
Genetic tools also contribute to wildlife crime investigations by helping authorities identify the species, sex, or likely geographic origin of seized material.
Regional Conservation Challenges
Tiger conservation varies dramatically across the species' range.
India supports the world's largest wild tiger population and demonstrates that intensive management can rebuild tiger numbers even in densely populated landscapes. Its growing challenge is maintaining corridors and reducing conflict as animals disperse outside protected areas.
Nepal has achieved one of the most dramatic tiger recoveries but now faces questions about carrying capacity, human safety, prey management, infrastructure, and maintaining local support.
Thailand retains some of the strongest remaining Indochinese tiger populations. Recovery in western Thailand contrasts with more fragile populations elsewhere in Southeast Asia, demonstrating the importance of sustained law enforcement and prey recovery.
Sumatra remains a crucial refuge for the Sumatran tiger, but habitat conversion, agricultural expansion, mining, roads, snares, hunting, and weak protection threaten many populations. Camera-trap studies show that some forests still support prey while tiger populations remain suppressed, suggesting that poaching can prevent recovery even where habitat persists.
Malaysia's Malayan tiger population has fallen to extremely low levels. Anti-snaring patrols, prey recovery, habitat protection, and intensive monitoring remain central to preventing further decline.
The Amur tiger has recovered substantially from historical lows in Russia and is expanding again into northeastern China. Its long-term survival depends on transboundary connectivity, prey, genetic diversity, and management of roads and other human pressures.
Reintroduction and Restoration
Tiger conservation increasingly includes attempts to restore populations where they have disappeared.
India's Panna Tiger Reserve provides one of the best documented examples. Following local extinction, translocated animals established a new breeding population. Research from Panna has examined population dynamics, social interactions, livestock conflict, diet, and the conditions that allowed the population to recover.
Russia has also restored Amur tigers to areas where they had been absent for decades through rehabilitation and release of orphaned animals.
Kazakhstan represents an especially ambitious restoration effort. Tigers disappeared from Central Asia during the twentieth century, but conservationists have worked to restore habitat and prey in the Ile-Balkhash region. Amur tigers, which are closely related to the extinct Caspian tiger population, are being used as the foundation for a proposed restored population.
Reintroduction is considerably more complicated than releasing animals. Suitable habitat, abundant prey, local acceptance, law enforcement, veterinary monitoring, genetic planning, and long-term institutional commitment must already exist or be developed.
Climate Change and Ecosystem Benefits
Climate change adds another dimension to tiger conservation. Sea-level rise and climate change threaten Bengal tiger habitat in the Sundarbans, while modeling of the Sino-Russian region suggests that suitable Amur tiger habitat and connectivity may shift geographically.
Maintaining large connected landscapes can give tiger populations greater opportunities to respond to environmental change.
Tiger protection can also produce climate benefits. Research from India links protection of tiger reserves with reduced forest loss and associated carbon emissions. Conserving tiger landscapes can simultaneously protect carbon stores, watersheds, forests, prey populations, and numerous other species.
Tigers consequently function as an umbrella species. Protecting the landscapes required by a large predator can conserve extensive ecosystems that support biodiversity and human communities.
Conservation Finance and Partnerships
Tiger recovery requires sustained funding over decades rather than short-term conservation projects. Rangers, monitoring programs, protected areas, community programs, compensation systems, prey restoration, research, corridor protection, and law enforcement all require reliable financing.
In 2024, governments and conservation organizations meeting in Bhutan announced an ambition to catalyze approximately US$1 billion for tiger landscapes over the following decade.
Such approaches increasingly connect tiger conservation with wider benefits provided by healthy ecosystems, including carbon storage, freshwater protection, biodiversity, tourism, and local livelihoods.
International programs also emphasize collaboration across national borders. Tigers frequently occupy landscapes extending between countries, making cooperation essential in regions such as India-Nepal, Russia-China, and other transboundary habitats.
Successful conservation ultimately depends on combining international finance and policy with effective management at individual conservation sites and meaningful participation by communities living beside tiger habitat.
The Future of Tiger Conservation
The accumulated evidence suggests that tiger recovery is possible but fragile. Population growth alone cannot guarantee long-term survival.
Successful tiger landscapes generally share several characteristics: protected breeding populations, abundant wild prey, effective anti-poaching enforcement, connected habitat, scientific monitoring, genetic exchange, supportive institutions, and communities that receive meaningful benefits while being protected from unacceptable costs.
Future conservation will increasingly have to operate beyond traditional protected areas. Expanding populations must navigate highways, agricultural landscapes, settlements, resource extraction, and infrastructure while adapting to climate change.
At the same time, some regions still require the more fundamental task of preventing local extinction and rebuilding prey populations before tiger recovery can begin.
Conclusion
The history of tiger conservation contains both catastrophic decline and evidence of remarkable recovery. India, Nepal, Thailand, Russia, and China demonstrate that sustained protection can increase tiger populations, while conditions in parts of Southeast Asia show how quickly habitat loss, prey depletion, snares, trafficking, and weak enforcement can undermine those gains.
The central lesson is that conserving tigers means conserving landscapes rather than animals alone. Tigers require prey, connected forests, genetic exchange, effective institutions, and safe pathways between populations. They also require conservation systems that recognize the livelihoods, safety, knowledge, and legitimate interests of people living alongside them.
The future of the tiger will therefore depend on whether population recovery can be transformed into durable coexistence: connected ecosystems capable of supporting viable tiger populations while also providing security and benefits to the human communities sharing those landscapes.
- TOC**
Tiger — Global Conservation, Recovery, and Planning
Reviews tiger population recovery while emphasizing locally led approaches that reduce conflict, protect livelihoods, restore habitats, strengthen law enforcement, and enable long-term coexistence between people and tigers.
Reports Nepal's estimate of 429 wild tigers and examines how decades of conservation, habitat protection, community involvement, and coexistence programs contributed to the recovery.
Reviews Nepal's growing tiger population alongside ZSL programs focused on monitoring, communities, habitat management, prey, conflict mitigation, and conservation partnerships.
Across Asia, six projects are reshaping the future of tiger landscapes | IUCN | IUCN | 2026-04-28
Describes conservation projects in Indonesia, Thailand, India, Nepal, and Bangladesh aimed at protecting tiger populations by maintaining prey, ecological connectivity, habitat integrity, and community support.
| Imran Siddiqui et al. | Oryx | 2026-04-23
Long-term monitoring in India's Kawal Tiger Reserve indicates that available prey could support far more tigers than currently occur, highlighting connectivity and female dispersal as major constraints on recovery.
Uses the camera-trap history of a tiger cub named Gamma to illustrate successful reproduction, dispersal, and improving habitat conditions in Thailand's Western Forest Complex.
| Authors | Journal of Environmental Management | 2026-01-15
Analyzes two decades of human disturbance and forest fragmentation across tiger conservation landscapes and argues that population targets must be paired with measures of habitat integrity and connectivity.
Surveys tiger recovery and reintroduction initiatives across Asia, including efforts to restore habitat and allow tigers to recolonize portions of their former range.
Tigers on the move: Why expanding tiger habitats matters | WWF | World Wildlife Fund | 2025-03-03
Explains why tiger recovery requires more than protected reserves, emphasizing corridors, dispersal areas, connected forests, prey populations, and landscapes where communities can coexist with large carnivores.
| Wildlife Conservation Society | WCS | 2024-12-11
Reports successful restoration of Amur tigers to Russia's Pri-Amur region through rehabilitation and release of orphaned cubs, offering lessons for tiger reintroduction elsewhere in Asia.
| Authors | Biological Conservation | 2024-12
Documents the post-conflict recovery of tigers in Manas National Park, India, showing how improved protection, management investment, tourism revenue, and political stability can rebuild depleted populations.
Reviews a decade of Integrated Tiger Habitat Conservation Programme projects and highlights habitat restoration, community livelihoods, transboundary cooperation, monitoring, and continued threats to wild tigers.
| Authors | Global Ecology and Conservation | 2024-09
Uses long-term photographic capture-recapture data to document a sustained tiger recovery across Thailand's Huai Kha Khaeng and Thung Yai protected areas from 2007 through 2023.
Discusses the Global Tiger Forum estimate of roughly 5,574 wild tigers and evaluates progress since tiger-range countries adopted a population-recovery target in 2010.
| IUCN and partners | IUCN | 2023-07-30
Announces a coalition designed to increase political ambition and long-term financing for tiger recovery while connecting species conservation with benefits for ecosystems and local communities.
| Wildlife Conservation Society | WCS | 2023
Describes the Tiger Conservation Coalition's shared goal of recovering tiger populations and landscapes by 2034 through cooperation on wildlife crime, habitat, coexistence, finance, and policy.
| Pramod K. Yadav, Matthew T. J. Brownlee and Mohnish Kapoor | Oryx | 2022-11-02
Reviews tiger research across the Terai Arc Landscape and Himalayas, identifying geographic, methodological, and thematic research gaps and priorities for future conservation planning.
| Wildlife Conservation Society | WCS | 2022-07-22
Discusses the IUCN assessment indicating higher estimated global tiger numbers and emphasizes that focused protection of breeding populations and habitat has produced measurable conservation gains.
| Wildlife Conservation Society | WCS | 2022-01-31
Reviews evidence that tiger numbers had begun stabilizing or increasing in several countries and outlines a collaborative conservation vision for the period leading to the next Year of the Tiger.
What does the world gain when we protect tigers? | Tom Gray | World Wildlife Fund | 2021-04-01
Explains the umbrella-species role of tigers and how conserving tiger landscapes can protect watersheds, forests, biodiversity, carbon stores, and ecosystem services relied upon by people.
Tiger — India: Recovery, Protected Areas, Corridors, and Landscape Management
Examines the growing importance of forest corridors as India's expanding tiger populations disperse beyond protected reserves into landscapes increasingly fragmented by roads and other infrastructure.
Investigates the unusually dark tigers of Similipal Tiger Reserve and the genetic risks that arise when recovering tiger populations remain isolated and become increasingly inbred.
| William F. Laurance and Uma Ramakrishnan | Nature | 2025-04-08
Discusses India's tiger recovery and considers lessons it offers for conserving large, wide-ranging species in densely populated and heavily modified landscapes.
Covers research linking India's tiger recovery with protected habitat, anti-poaching measures, prey management, legislation, local economic benefits, and tolerance among communities sharing tiger landscapes.
| Authors | Global Ecology and Conservation | 2022-12
Models livestock depredation risk around reintroduced tigers in Panna and identifies combinations of prey scarcity and ambush cover that increase the probability of conflict.
Reviews India's tiger recovery, protected-area management, reintroductions, prey restoration, monitoring methods, conservation financing, and lessons that may apply to other large-carnivore recovery programs.
Long-term monitoring in Rajaji National Park shows that tiger recovery depends on survival, female tenure, prey-rich habitat, low disturbance, and functional connectivity to source populations.
Finds substantial genetic structuring among Indian tiger populations and argues that conservation should preserve distinctive regional diversity rather than focusing solely on total tiger numbers.
Argues that India's increasing tiger numbers should be accompanied by stronger protection of habitat and corridors, particularly for genetically distinctive populations in northeastern India.
Reports the results of India's 2018 tiger census, which estimated 2,967 animals and documented substantial population growth following conservation and anti-poaching investments.
Interviews tiger biologist Ullas Karanth about camera trapping, prey recovery, protected areas, forest management, human pressures, and the possibility of supporting substantially larger tiger populations.
Uses genome-wide markers from tiger populations across India to identify genetic clusters, connectivity patterns, isolated populations, and areas needing especially urgent conservation attention.
| Mark Everard, Dharmendra Khandal and Y. K. Sahu | Ecosystem Services | 2017-04
Explores landscape restoration and community-based land-use management around Ranthambhore as ways to improve ecosystem services while reducing conflict between expanding tiger populations and people.
| Authors | Global Ecology and Conservation | 2016
Establishes ecological benchmarks following expansion of protected areas in southern India so managers can measure future changes in tiger abundance, prey populations, habitat, and institutional capacity.
| Subhadeep Bhattacharjee et al. | PLOS ONE | 2015-06-10
Measures physiological stress in reintroduced tigers in Sariska Tiger Reserve and links stress responses with anthropogenic disturbance, providing insight into the management of reintroduced populations.
| Sanjay Gubbi et al. | Oryx | 2015-03-10
Describes conservation planning that expanded Karnataka's protected-area network and connected numerous reserves, increasing the amount of habitat available for tigers and other wildlife.
| Digpal Singh Gour et al. | PLOS ONE | 2013-07-02
Uses non-invasive genetics to examine sex-specific dispersal and philopatry among tigers in Pench Tiger Reserve, contributing to understanding of population connectivity and mating structure.
Examines tiger and prey status around the time of the catastrophic local extinction in Panna Tiger Reserve and illustrates the importance of rigorous monitoring rather than relying on indirect counts.
| Abishek Harihar et al. | Oryx | 2009-01-28
Shows contrasting tiger recovery between sectors of Rajaji National Park and identifies restoration of the Chilla-Motichur corridor as essential for reconnecting an isolated population.
| Authors | Biological Conservation | 2008-01
Uses a landscape-scale population model to examine whether existing reserves can sustain viable tiger populations across the Indian subcontinent and where broader landscape conservation is necessary.
Tiger — Nepal and the Terai Arc: Recovery, Connectivity, and Conflict
Examines Nepal's new estimate of 429 tigers and shows that recent population growth has been uneven, with newer national parks producing much of the increase.
Examines Nepal's proposal for a semi-natural facility for conflict-prone tigers and debates its ethics, ecological effectiveness, cost, and alternatives for managing dangerous individual animals.
Uses DNA metabarcoding and microscopic analysis of tiger scat to identify prey and shows the importance of maintaining abundant wild prey in reducing livestock predation and conflict.
Analyzes hundreds of tiger attacks in Nepal to identify circumstances associated with encounters and fatalities, providing evidence for targeted conflict-prevention measures.
Examines a decade of human-tiger conflict around Chitwan and Parsa National Parks, including casualties, hotspots, contributing factors, community perceptions, and preferred mitigation measures.
Reviews the challenges following Nepal's tiger recovery, including attacks, compensation, forest dependence, highways, habitat fragmentation, and balancing development with conservation.
Describes Nepal's shift from a numerical tiger target toward habitat connectivity, genetic viability, conflict reduction, and institutional capacity under its updated conservation strategy.
Explores evidence that shortages of large wild prey can increase livestock predation and human-tiger conflict even in landscapes where overall tiger populations are recovering.
Reports GPS evidence showing how vehicle traffic changes tiger movement and explores road-design and traffic-management measures that could lessen impacts on wildlife.
Reports Nepal's 2022 census estimate of 355 tigers, nearly triple its 2010 population, while discussing carrying capacity and increasing conflict around tiger habitat.
| Kanchan Thapa et al. | PLOS ONE | 2018-03-21
Provides Nepal's first broad non-invasive genetic assessment of tigers across the Terai Arc, identifying three genetic clusters, migrant individuals, and the importance of functional forest corridors.
| Babu Ram Lamichhane et al. | Oryx | 2017-08-07
Documents rapid tiger population growth in Parsa following improved protection, reduced disturbance, community resettlement from core habitat, and immigration from neighboring Chitwan.
| Authors | Global Ecology and Conservation | 2017-07
Finds that only a small fraction of Chitwan's tigers became persistent conflict animals and identifies transient or physically impaired individuals as disproportionately represented.
| Kanchan Thapa et al. | PLOS ONE | 2017-06-07
Presents evidence that dispersal between protected areas contributes to tiger recovery across the transboundary Terai Arc, supporting management of the region as an interconnected metapopulation.
| Sujeet Kumar Singh et al. | PLOS ONE | 2017-04-26
Finds significant fine-scale genetic structure between tiger populations in the western Terai Arc and warns that changing land use threatens already limited gene flow.
| Rajendra Dhungana et al. | Oryx | 2017-04-24
Analyzes spatial and temporal patterns in human casualties and livestock depredation around Chitwan National Park to identify circumstances and locations associated with elevated conflict risk.
| Per Wegge, Shailendra Kumar Yadav and Babu Ram Lamichhane | Oryx | 2016-10-28
Evaluates the Khata wildlife corridor and finds resident and dispersing tigers using the restored connection between Nepal and India while local development programs helped maintain community support.
| Babu R. Bhattarai and Klaus Fischer | Oryx | 2014-03-13
Examines human-tiger conflict around Bardia National Park, including attacks, livestock losses, community attitudes, and factors affecting local acceptance of tiger conservation.
| Jhamak B. Karki et al. | Oryx | 2013-10-30
Uses extensive camera trapping to estimate tiger abundance in and around Chitwan National Park and demonstrates the importance of the Churia hills and surrounding forests to the larger population.
| Authors | Biological Conservation | 2008-12
Uses nearly three decades of records to investigate human-killing tigers in Chitwan and identifies ecological, behavioral, and human-activity factors associated with fatal encounters.
Tiger — Sumatra, Thailand, and Southeast Asia
Follows rangers protecting Sumatra's Batutegi forest, where tiger habitat is threatened by encroachment and where conservation increasingly combines patrols, remote sensing, agroforestry, and community participation.
Compares contrasting tiger trends across Asia, from population growth in South Asia to conflict, corridor pressures, and forests in Southeast Asia where tigers remain depleted.
Describes protection of Thailand's Si Sawat corridor after camera traps documented tiger movements through the landscape, demonstrating the value of connectivity outside core reserves.
Reports research showing that Indochinese tigers remain stable in eastern Thailand but limited prey and major highways constrain population expansion into otherwise suitable habitat.
Finds that high survival alone is insufficient for rapid recovery because depleted prey populations and infrastructure limit tiger density and use of available habitat.
Reports the first broad assessment of tigers and prey in Aceh's Ulu Masen ecosystem and highlights threats from snares, illegal mining, fragmentation, and weak protection.
Camera-trap research finds widespread prey but relatively few female Sumatran tigers, suggesting that poaching and insufficient protection may be preventing population recovery.
Links tiger recovery in Thailand's Western Forest Complex with stronger ranger patrols, habitat management, water restoration, and simultaneous recovery of important prey species.
Meet Saw Soe Aung: Protecting tigers in Tanintharyi | Fauna & Flora | Fauna & Flora | 2023-07-29
Profiles conservation work in Myanmar's Tanintharyi forests, an important remaining landscape for Indochinese tigers threatened by development, exploitation, hunting, and habitat degradation.
The future of Panthera tigris in Thailand and globally | IUCN | IUCN | 2022-08-02
Reviews the status of Thailand's Indochinese tigers, their role in global recovery, and continuing threats from poaching, habitat loss, fragmentation, and prey depletion.
Tiger — Amur, South China, Russia, China, Kazakhstan, and Central Asia
Describes Kazakhstan's effort to restore tigers to the Ile-Balkhash landscape using closely related Amur tigers after decades of habitat and prey restoration.
Reviews China's recovering Amur tiger population and proposes strategies addressing habitat, prey, inbreeding, disease, pollution, conflict, technology, and international cooperation.
| Authors | Global Ecology and Conservation | 2026-04
Finds that protected areas in Russia's Sikhote-Alin landscape support higher female tiger survival and cub production than surrounding multiple-use forests affected by logging roads and traffic.
Reports an exceptionally large litter recorded in China's Northeast China Tiger and Leopard National Park and discusses habitat, prey, connectivity, poaching, and genetic concerns.
Models future Amur tiger habitat under climate scenarios and emphasizes maintaining existing corridors while identifying new connections as suitable habitat shifts geographically.
| Aleksey Yurievich Oleynikov, Sergey A. Kolchin and Galina P. Salkina | Oryx | 2025-03-20
Analyzes decades of vehicle collisions involving Amur tigers and finds a recent increase coinciding with prey disruption and changing tiger movement patterns.
Two tigers settle into winter in a new home | WWF | World Wildlife Fund | 2025-03-03
Follows two Amur tigers transferred to Kazakhstan as part of a long-term project intended eventually to establish a self-sustaining wild tiger population.
Investigates the genetics of a geographically restricted Amur tiger population and discusses isolation, gene flow, population history, and transboundary conservation implications.
Uses ancient and historical tiger genomes to reconstruct population movements, admixture, and evolutionary history across mainland Asia, including Amur, South China, and Caspian lineages.
| María C. Fàbregas, Geoffrey T. Fosgate and Gary M. Koehler | Biological Conservation | 2015-12
Finds that captive-born South China tigers can successfully hunt free-ranging prey, providing evidence relevant to proposals for eventual reintroduction into restored habitat.
| Anthony Caragiulo et al. | Oryx | 2015-01-14
Uses non-invasive genetic sampling to verify Amur tiger presence in China's Jilin Province and demonstrates the usefulness of molecular techniques for monitoring tiny, elusive populations.
| Authors | Biological Conservation | 2015
Evaluates habitat and prey availability in Chinese nature reserves being considered for restoration of South China tigers and identifies ecological requirements for a viable reintroduced population.
Documents long-distance Amur tiger dispersal across the China-Russia landscape and demonstrates the potential value of restoring connectivity between fragmented tiger habitat.
| Authors | Biological Conservation | 2014
Develops an Amur tiger habitat model incorporating prey, roads, and human activity and identifies extensive but uneven habitat across the Russian Far East.
Explains the first tiger genome sequencing project and how genomic information can illuminate big-cat evolution while helping conservationists maintain genetic diversity.
Presents the first reference genome for an Amur tiger and compares it with other Panthera species to investigate evolutionary adaptations and provide genomic resources for conservation.
What Is a Tiger? Genetics and Phylogeography | Authors | Tigers of the World | 2010
Reviews tiger evolutionary history, phylogeography, subspecies debates, captive ancestry, genetic diversity, and the conservation consequences of how tiger populations are classified.
| Ronald Tilson, Kathy Traylor-Holzer and Qiu Ming Jiang | Oryx | 2009-04-24
Reviews the extreme decline of the South China tiger and the conservation challenges created by the disappearance of viable wild populations.
| John M. Goodrich and Dale G. Miquelle | Oryx | 2005-10-19
Evaluates four translocations of conflict-causing Amur tigers and finds that relocation can sometimes provide an alternative to lethal removal, although outcomes varied substantially.
Reports extensive field surveys that found no convincing evidence of surviving wild South China tiger populations in priority reserves and documents severe habitat and prey limitations.
Tiger — Genetics, Taxonomy, and Population Connectivity
Provides the first genetic assessment of Bhutan's tiger population, identifying population structure, substantial diversity, dispersal, and the importance of transboundary connectivity.
Summarizes research developing ancestry-informative genetic markers that could make geographic assignment of wild tigers more affordable and useful for conservation management.
Develops a lower-cost genetic marker panel capable of identifying major geographic ancestry patterns among Indian tiger populations without requiring whole-genome sequencing for every individual.
Uses genetic data from hundreds of tigers to identify landscape characteristics associated with population abundance and gene flow across a large central Indian region.
Combines landscape ecology with genetic evidence to determine which human-modified land-cover features facilitate or impede tiger dispersal between protected areas.
Finds high genetic diversity and extensive gene flow among central Indian tiger populations while warning that mining, roads, and deforestation could sever existing connections.
Shows that forest corridors have maintained both historical and contemporary gene flow among otherwise separated tiger populations in central India.
Reviews how molecular genetics can resolve tiger taxonomy, reconstruct population history, assess wild and captive diversity, identify conservation units, and support management decisions.
Tests captive tigers from multiple countries and finds both genetically identifiable subspecies animals and admixed individuals, with implications for conservation breeding.
Uses mitochondrial, nuclear, and microsatellite markers from geographically verified tigers to investigate population subdivision, subspecies ancestry, evolutionary history, and conservation units.
Tiger — Habitat, Climate, Corridors, and Ecosystems
Corridor Management | National Tiger Conservation Authority | Government of India | 2026
Describes India's identification and management of major tiger corridors and efforts to mitigate roads and other infrastructure with wildlife crossings and landscape planning.
Integrated Tiger Habitat Conservation Programme | IUCN | IUCN | 2026
Summarizes a landscape-level conservation model combining tiger protection, habitat restoration, ecological connectivity, community livelihoods, conflict reduction, and protected-area management.
Estimates reductions in forest loss and associated carbon emissions linked to India's tiger-reserve protection, demonstrating climate benefits alongside biodiversity conservation.
Discusses evidence that tiger conservation can reduce deforestation and generate substantial climate benefits, potentially connecting biodiversity protection with carbon finance.
Maps changes in tiger conservation landscapes across Asia and identifies both continuing habitat losses and large areas with potential for tiger restoration.
Identifies landscapes where tiger populations could potentially be restored if habitat, prey, institutional support, community acceptance, and threat reduction are sufficient.
Models climate and sea-level impacts on Bengal tiger habitat in the Sundarbans and projects severe losses without effective climate adaptation and habitat conservation.
Finds that Sumatran tigers retain substantial genetic diversity despite severe forest loss but warns that fragmentation may create a delayed genetic extinction risk.
Combines landscape genetics with spatial simulations to show how roads, human settlement, habitat corridors, and stepping-stone populations can influence long-term extinction risk.
Where do tigers live and other tiger facts | WWF | World Wildlife Fund | n.d.
Provides an overview of tiger habitats, subspecies, geographic range, ecology, threats, poaching, habitat loss, and the conservation importance of connected landscapes.
Tiger — Diet, Prey, Population Ecology, and Behavior
Uses long-term survey data to assess how tiger populations responded to increased conservation investment in Banke and Bardia national parks.
Investigates how reintroduced tigers share space and interact as a recovering population expands, providing information relevant to density, social structure, and reintroduction management.
Estimates tiger carrying capacity from prey densities and compares it with observed tiger abundance, emphasizing prey recovery as a foundation for further population growth.
Evaluates the long-term outcome of tiger translocation after local extinction in Panna and identifies demographic processes associated with successful population recovery.
Uses hundreds of genetically confirmed tiger scats to study prey selection across India's Terai Arc and identify areas where livestock predation may create conflict.
Studies tiger diet in reserve forests outside major protected areas, offering insight into how tigers persist and feed in important wildlife corridors.
Combines DNA identification with scat analysis to compare male and female tiger diets and evaluate the abundance and selection of prey in Bardia National Park.
Demonstrates how DNA collected from scat and hair can be incorporated into spatial capture-recapture methods to estimate tiger density where conventional camera trapping is difficult.
Studies tiger diet in a dry deciduous landscape with relatively depleted natural prey and finds that tigers still relied primarily on wild animals rather than livestock.
Examines tiger food habits in Ranthambhore National Park and compares the frequency of prey in tiger diets with the availability of different herbivore species.
Tiger — Human-Tiger Conflict and Coexistence
Surveys households near Bardiya National Park to assess tiger conflict, socioeconomic factors, attitudes toward conservation, and community responses to living near a growing predator population.
From Kitchens to Conservation | Abarta Pandey | Zoological Society of London | 2023-12-01
Shows how cleaner cooking technologies and reduced dependence on firewood can decrease dangerous trips into tiger habitat while improving livelihoods and supporting forest conservation.
Examines attitudes in communities along Nepal's Khata Corridor and links greater tiger tolerance with education, tourism benefits, reduced forest dependence, and fewer negative encounters.
A human centred approach to tiger conservation | ZSL | Zoological Society of London | 2023-08-31
Describes community participation, livelihoods, conflict mitigation, and local decision-making as essential components of tiger recovery programs in Nepal and India.
Examines what Nepal must do after its major tiger recovery, including maintaining community support, managing habitat, preventing conflict, and strengthening partnerships.
Describes transboundary conservation cooperation between India and Nepal and the role of communities and protected-area managers in maintaining the Terai Arc's tiger population.
Explores how Indigenous ecological knowledge and traditional grassland practices could help communities reduce dangerous encounters as Nepal's tiger population grows.
Questions whether habitat management optimized primarily for tigers can disadvantage leopards, bears, and other predators, illustrating tradeoffs in single-species conservation.
Combines tiger-encounter risk with surveys of human attitudes and cultural beliefs in Sumatra to identify areas where preventative interventions could reduce conflict and tiger killings.
Studies cultural, ethnic, customary, and spiritual beliefs surrounding tigers in Sumatra and examines how those traditions can influence willingness to coexist with dangerous wildlife.
Tiger — Poaching, Trafficking, Captivity, and Enforcement
Reports that many tiger-trafficking arrests across Southeast Asia fail to produce meaningful convictions or penalties and identifies weaknesses in criminal justice responses.
Analyzes more than two decades of tiger seizures and finds persistent trafficking, changing commodity patterns, increasing whole-tiger seizures, and major trade hotspots across Asia.
Reviews laws in twelve tiger-range countries and identifies inconsistencies and loopholes that can weaken investigations, prosecutions, penalties, and cross-border efforts against trafficking.
Tigers facing new threats from evolving consumer demand | TRAFFIC | TRAFFIC | 2024-07-29
Examines changing consumer markets for tiger products, including tiger-bone glue, and discusses behavioral-change campaigns and enforcement strategies designed to reduce demand.
Documents thousands of confiscated tigers and tiger parts across more than two decades, providing a detailed picture of the scale and geography of illegal trade.
Science and conservation unite for tigers | ZSL | Zoological Society of London | 2021-03-19
Reports research using records from hundreds of captive female tigers to improve contraception and genetic management within conservation breeding programs.
Investigates private ownership, roadside zoos, cub handling, breeding, weak regulation, animal welfare problems, and conservation implications of America's large captive tiger population.
Discusses investigative reporting on wildlife trafficking, including markets for tiger bone and other endangered animal products and the criminal networks supplying them.
Provides an early overview of the catastrophic historical decline of tigers and the emergence of international protected-area and conservation efforts intended to prevent extinction.
Examines arguments that commercial tiger farming can stimulate markets for tiger bone, skins, and other products rather than reducing pressure on remaining wild animals.
Tiger — Conservation Finance, Partnerships, and Implementation
Reviews Panthera's tiger work across Asia and emphasizes secure habitat, recovering prey populations, ranger capacity, connectivity, and locally supported approaches to reducing conflict.
| Wildlife Conservation Society Malaysia | WCS Malaysia | 2025-10-09
Reviews a decade of Malayan tiger conservation in the Belum-Temengor landscape, including anti-snaring patrols, partnerships, monitoring, and evidence of breeding despite extremely low national numbers.
Surveys tiger conservation activities across several Asian countries, including anti-poaching work, habitat management, education, monitoring, and community participation.
Reports the commitment emerging from Bhutan's Sustainable Finance for Tiger Landscapes Conference to catalyze $1 billion for tiger landscapes over the following decade.
| Wildlife Conservation Society | WCS | 2024-04-23
Discusses the Bhutan tiger-finance agreement and argues that success should be measured not only by global population totals but also by preventing additional local extinctions.
Describes the international summit convened in Bhutan to develop innovative financing for tiger habitats that also provide biodiversity, carbon storage, freshwater, and livelihoods.
| Danielle Brigida | World Wildlife Fund | 2024-04-09
Explains why recovering tiger populations require reliable long-term financing for protected areas, corridors, prey recovery, law enforcement, local livelihoods, and coexistence programs.
Describes Panthera's Tigers Forever program, which focuses on protecting breeding populations, reducing poaching, rebuilding prey, monitoring populations, connecting habitat, and working with communities.
| Abishek Harihar | Panthera | n.d.
Reflects on changes in global tiger conservation and argues that proven site-based methods now provide genuine opportunities to rebuild populations where adequate habitat still exists.
Explains how demand for tiger skins, bones, teeth, and other body parts drives poaching and outlines enforcement and conservation strategies designed to reduce illegal killing.
Tiger — Genetics, Forensics, Diet, and Human-Dominated Landscapes
| Abhaya Raj Joshi | Mongabay | 2024-04-23
Discusses research showing that improved grassland management could increase herbivore populations in Nepal's tiger habitat and potentially reduce pressure on livestock.
| Dechen Dorji | Mongabay | 2023-08-08
Examines Bhutan's rising tiger population and argues that future conservation success will depend increasingly on strategies that maintain public tolerance and reduce livestock losses.
| Sahana Ghosh | Nature India | 2023-07-12
Reports research showing that strengthened protection of Indian tiger reserves can reduce forest loss and associated carbon emissions, adding a climate dimension to tiger conservation.
Explores the economic costs borne by livestock owners in Bhutan as tiger numbers recover and highlights compensation, insurance, and coexistence challenges.
| Dibesh Karmacharya et al. | PLOS ONE | 2018-08-23
Demonstrates how molecular forensics can identify species, sex, and likely geographic origin of seized tiger parts, strengthening investigations of illegal wildlife trafficking.
Examines patterns of livestock predation by tigers and leopards around Corbett Tiger Reserve and identifies landscape and husbandry factors associated with depredation.
| Abishek Harihar, Mousumi Ghosh-Harihar and Douglas C. MacMillan | Oryx | 2017-11-07
Shows how institutional delays and fragmented decision-making can prevent implementation of scientifically justified corridor protection even when a local tiger population faces extinction.
| S. S. Kolipaka et al. | PLOS ONE | 2017-04-05
Compares wild and domestic prey in the diets of reintroduced Panna tigers and explores the compatibility of livestock grazing with tiger restoration in multiple-use forests.
Examines large-carnivore distribution in the rugged high-altitude portions of Buxa Tiger Reserve, adding information about habitat use at the ecological margins of typical tiger range.
| Sujeet Kumar Singh et al. | PLOS ONE | 2015
Examines whether the mangrove-adapted Bengal tigers of the Indian Sundarbans are genetically distinctive enough to warrant recognition as a separate conservation management unit.
Tiger — Sumatra and Malaysia
Analyzes DNA from a hair collected in Java after a reported tiger sighting and examines the provocative possibility that the supposedly extinct Javan tiger may have persisted.
Examines where human-tiger interactions occur in Riau and shows that settlements and plantation landscapes are important conflict locations as forest conversion brings people and tigers into closer contact.
| Kae Kawanishi et al. | Oryx | 2013-07-19
Shows how existing camera-trap evidence was used to justify stronger legal protection for declining tiger prey in Malaysia despite the absence of perfect population data.
| Sunarto Sunarto et al. | PLOS ONE | 2012-01-23
Studies Sumatran tiger occupancy across forests and plantation landscapes and finds that dense vegetation cover remains particularly important even where tigers use modified habitats.
| Hariyo T. Wibisono et al. | PLOS ONE | 2011
Provides an island-wide occupancy assessment of Sumatran tigers, revealing their distribution across major forest landscapes and establishing a baseline for population monitoring.
| Matthew Linkie and colleagues | Journal of Zoology | 2011
Examines relationships between Sumatran tigers and their prey across Kerinci Seblat and considers how prey distribution and abundance influence tiger habitat use.
Uses camera trapping to estimate tiger abundance in Batang Gadis National Park and demonstrates the conservation importance of the then-new protected area.
Shows that selectively logged forests can retain conservation value for Malayan tigers and argues against assuming that only pristine forests can support viable populations.
| Antony J. Lynam et al. | Oryx | 2007-12-03
Reports camera-trap surveys across Peninsular Malaysia and identifies habitat loss, fragmentation, prey depletion, trade, and human pressure as major threats to Malayan tigers.
| Matthew Linkie et al. | Oryx | 2003-02-11
Documents the combined effects of poaching, forest conversion, logging, agriculture, mining, and fire on tigers in the globally important Kerinci Seblat landscape.
Tiger — Thailand, Laos, Bangladesh, and Mainland Southeast Asia
| Abu Siddique | Mongabay | 2026-07
Reports preparations to release an injured female tiger rescued from a poacher's trap in the Bangladesh Sundarbans, raising questions about rehabilitation and post-release monitoring.
| Authors | Trees, Forests and People | 2023-06
Examines human-tiger conflict in the Indian Sundarbans and connects attack patterns with forest dependence, population growth, land-use change, and livelihood activities such as fishing and honey collection.
| Wildlife Conservation Society | WCS | 2022-05-05
Highlights a long-term increase in tiger numbers at Thailand's Huai Kha Khaeng Wildlife Sanctuary following sustained protection and monitoring.
| Eric Ash et al. | Oryx | 2020-01-27
Documents breeding Indochinese tigers in Thailand's Dong Phayayen-Khao Yai Forest Complex and identifies the landscape as a major opportunity for Southeast Asian tiger recovery.
| Samia Saif, H. M. Tuihedur Rahman and Douglas Craig MacMillan | Oryx | 2016-10-28
Investigates tiger killing in the Bangladesh Sundarbans, identifying the people involved, their motivations, killing methods, and connections between local persecution and commercial trade.
| Authors | Biological Conservation | 2016-10
Evaluates a law-enforcement strategy in Laos and finds that patrol investment improved protection of prey but was insufficient to reverse the decline of an extremely small tiger population.
| Chanthavy Vongkhamheng, Arlyne Johnson and Melvin E. Sunquist | Oryx | 2013-07-19
Finds severely depleted populations of large tiger prey in Nam Et-Phou Louey, illustrating how hunting can undermine predator recovery even where substantial forest remains.
Ranks threats to Sundarbans tigers, prey, and habitat, including poaching, sea-level rise, water diversion, resource extraction, and prey depletion to guide conservation investment.
| M. Monirul H. Khan and David J. Chivers | Oryx | 2007-12-03
Compares tiger use of mangrove woodland, beaches, grasslands, and transitional habitat in the Bangladesh Sundarbans and recommends habitat-specific management measures.
| Matthew Linkie et al. | Journal of Applied Ecology | 2006-03-29
Models the viability of tiger subpopulations in fragmented Sumatran habitat and evaluates how alternative conservation strategies could influence their prospects for persistence.
Tiger — Disease, Emerging Threats, Prey Shocks, and Foundational Conservation Science
Shows how African swine fever caused a severe wild-boar decline in the Russian Far East, followed by increased tiger conflict, poor body condition, and higher mortality.
| Yao Ning et al. | Scientific Reports | 2024-04-06
Assesses the genetics of a small isolated Amur tiger population and concludes that low effective population size and limited genetic diversity create a need for stronger connectivity or genetic rescue.
| Tianming Wang et al. | Integrative Zoology | 2023-03-07
Models disease and demographic risks to the small China-Russia border tiger population and evaluates connectivity, habitat expansion, and domestic-dog management as conservation interventions.
| Jessica Bodgener et al. | Pathogens | 2023-01-28
Reports evidence of canine distemper exposure in wild tigers and leopards in Nepal and discusses implications for monitoring disease in South Asian carnivore populations.
| Authors | Journal of Wildlife Diseases | 2021
Detects antibodies against canine distemper virus in wild-caught Sumatran tigers, demonstrating that exposure to the pathogen is not confined to Amur tiger populations.
| Martin Gilbert et al. | Proceedings of the National Academy of Sciences | 2020
Finds that wildlife rather than domestic dogs may be the principal reservoir of canine distemper for Amur tigers and evaluates direct tiger vaccination as a possible intervention.
| Authors | Integrative Zoology | 2018
Compares Amur tiger diets in Russia and China and highlights the importance of wild boar, deer, habitat protection, and coordinated transboundary prey monitoring.
| Authors | Biological Conservation | 2017-01
Assesses whether Amur tigers could restore the ecological role of the extinct Caspian tiger in Central Asia and identifies the Ili-Balkhash region as a promising reintroduction landscape.
| Martin Gilbert et al. | Integrative Zoology | 2015
Reviews canine distemper in Russian tigers and evaluates the potential for the multi-host virus to threaten small tiger populations across the species' wider range.
| Martin Gilbert et al. | PLOS ONE | 2014
Models the potential effects of canine distemper virus on Amur tiger population viability and shows that small populations are disproportionately vulnerable to infection.
Documents fatal canine distemper infections in wild Amur tigers and establishes the virus as a significant emerging infectious-disease threat in the Russian Far East.
| Authors | Biological Conservation | 2011-01
Analyzes more than 200 Amur tiger conflicts and evaluates Russia's Tiger Response Team, finding that wounded or unhealthy animals accounted for many dangerous encounters with people.
| Joe Walston et al. | PLOS Biology | 2010-09-14
Argues that protecting a relatively small number of high-priority tiger source sites could prevent extinction and provide a foundation for subsequent range-wide population recovery.
| Author | Tigers of the World | 2010
Reviews four centuries of encounters between people and tigers in the Malay world and places modern human-tiger conflict within a broader historical and cultural context.
| Authors | Tigers of the World | 2010
Reviews biological and social causes of human-tiger conflict and discusses approaches for maintaining tigers in landscapes where people, livestock, and large carnivores overlap.
| Zhigang Jiang et al. | BioScience | 2007-10-01
Discusses captive-bred tigers in relation to conservation of wild populations and the debate over whether captive production can reduce or instead complicate threats to wild tigers.
| Eric Dinerstein et al. | BioScience | 2007-06-01
Provides a major range-wide assessment of tiger decline, documenting severe historical range contraction and calling for stronger protection, anti-poaching efforts, and international cooperation.
Uses population simulation to demonstrate how seemingly modest increases in tiger poaching can push populations rapidly toward extinction and reduce genetic diversity.
| Cornell K. Lisa Yang Center for Wildlife Health | Cornell University | n.d.
Reviews research into canine distemper virus as an emerging conservation threat to tigers and explains why small, isolated populations are particularly vulnerable to disease-driven mortality.
| Wildlife Conservation Society China | WCS China | n.d.
Describes community-based conservation in Northeast China, including local patrol teams, snare removal, human-tiger conflict response, and management of wild ungulates important as tiger prey.
