Species reintroduction is the deliberate release of a species into the wild, from captivity or other areas where the organism is capable of survival. The goal of species reintroduction is to establish a healthy, genetically diverse, self-sustaining population to an area where it has been extirpated, or to augment an existing population. Species that may be eligible for reintroduction are typically threatened or endangered in the wild. However, reintroduction of a species can also be for pest control; for example, wolves being reintroduced to a wild area to curb an overpopulation of deer. Because reintroduction may involve returning native species to localities where they had been extirpated, some prefer the term "reestablishment". Humans have been reintroducing species for food and pest control for thousands of years. However, the practice of reintroducing for conservation is much younger, starting in the 20th century.

Methods for sourcing individuals

There are a variety of approaches to species reintroduction. The optimal strategy will depend on the biology of the organism. The first matter to address when beginning a species reintroduction is whether to source individuals ''in situ'', from wild populations, or ''ex situ'', from captivity in a zoo or botanic garden, for example.

''In situ'' sourcing

'' In situ'' sourcing for restorations involves moving individuals from an existing wild population to a new site where the species was formerly extirpated. Ideally, populations should be sourced ''in situ'' when possible due to the numerous risks associated with reintroducing organisms from captive populations to the wild. To ensure that reintroduced populations have the best chance of surviving and reproducing, individuals should be sourced from populations that genetically and ecologically resemble the recipient population. Generally, sourcing from populations with similar environmental conditions to the reintroduction site will maximize the chance that reintroduced individuals are well adapted to the habitat of the reintroduction site . One consideration for ''in situ'' sourcing is at which life stage the organisms should be collected, transported, and reintroduced. For instance, with plants, it is often ideal to transport them as seeds as they have the best chance of surviving translocation at this stage. However, some plants are difficult to establish as seed and may need to be translocated as juveniles or adults.

''Ex situ'' sourcing

In situations where ''in situ'' collection of individuals is not feasible, such as for rare and endangered species with too few individuals existing in the wild, ''ex situ'' collection is possible. ''Ex situ'' collection methods allow storage of individuals that have high potential for reintroduction. Storage examples include germplasm stored in seed banks, sperm and egg banks, cryopreservation, and tissue culture. Methods that allow for storage of a high numbers of individuals also aim to maximize genetic diversity. Stored materials generally have long lifespans in storage, but some species do lose viability when stored as seed. Tissue culture and cryopreservation techniques have only been perfected for a few species. Organisms may also be kept in living collections in captivity. Living collections are more costly than storing germplasm and hence can support only a fraction of the individuals that ''ex situ'' sourcing can. Risk increases when sourcing individuals to add to living collections. Loss of genetic diversity is a concern because fewer individuals stored. Individuals may also become genetically adapted to captivity, which often adversely affects the reproductive fitness of individuals. Adaptation to captivity may make individuals less suitable for reintroduction to the wild. Thus, efforts should be made to replicate wild conditions and minimize time spent in captivity whenever possible.

Successes and failures

Reintroduction biology is a relatively young discipline and continues to be a work in progress. No strict and accepted definition of reintroduction success exists, but it has been proposed that the criteria widely used to assess the conservation status of endangered taxa, such as the IUCN Red List criteria, should be used to assess reintroduction success. Successful reintroduction programs should yield viable and self-sustainable populations in the long-term. The IUCN/SSC Re-introduction Specialist Group & Environment Agency, in their 2011 Global Re-introduction Perspectives, compiled reintroduction case studies from around the world.Soorae, P. S. (ed.) (2011). Global Re-introduction Perspectives: 2011.More case studies from around the globe. Gland, Switzerland: IUCN/SSC Re-introduction Specialist Group and Abu Dhabi, UAE: Environment Agency-Abu Dhabi. xiv + 250 pp.SBN: 978-2-8317-1432-5 https://portals.iucn.org/library/sites/library/files/documents/2011-073.pdf 184 case studies were reported on a range of species which included invertebrates, fish,

amphibian Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terres ...

reptile Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians ( ...

s, birds,

mammal Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or ...

s, and plants. Assessments from all of the studies included goals, success indicators, project summary, major difficulties faced, major lessons learned, and success of project with reasons for success or failure. A similar assessment focused solely on plants found high rates of success for rare species reintroductions. An analysis of data from the Center for Plant Conservation International Reintroduction Registry found that, for the 49 cases where data were available, 92% of the reintroduced plant populations survived two years. The Siberian tiger population has rebounded from 40 individuals in the 1940s to around 500 in 2007. The Siberian tiger population is now the largest un-fragmented tiger population in the world. Yet, a high proportion of translocations and reintroductions have not been successful in establishing viable populations. For instance, in China reintroduction of captive Giant Pandas have had mixed effects. The initial pandas released from captivity all died quickly after reintroduction. Even now that they have improved their ability to reintroduce pandas, concern remains over how well the captive-bred pandas will fare with their wild relatives. Many factors can attribute to the success or failure of a reintroduction. Predators, food, pathogens, competitors, and weather can all affect a reintroduced population's ability to grow, survive, and reproduce. The number of animals reintroduced in an attempt should also vary with factors such as social behavior, expected rates of predation, and density in the wild. Animals raised in captivity may experience stress during captivity or translocation, which can weaken their immune systems. The IUCN reintroduction guidelines emphasize the need for an assessment of the availability of suitable habitat as a key component of reintroduction planning.Prepared by the SSC Re-introduction Specialist Group (May 1995) IUCN/SSC Guidelines for Re-Introductions http://www.iucnsscrsg.org Poor assessment of the release site can increase the chances that the species will reject the site and perhaps move to a less suitable environment. This can decrease the species fitness and thus decrease chances for survival. They state that restoration of the original habitat and amelioration of causes of extinction must be explored and considered as essential conditions for these projects. Unfortunately, the monitoring period that should follow reintroductions often remains neglected.

Genetic considerations

When a species has been extirpated from a site where it previously existed, individuals that will comprise the reintroduced population must be sourced from wild or captive populations. When sourcing individuals for reintroduction, it is important to consider local adaptation, adaptation to captivity (for ''ex situ'' conservation), the possibility of inbreeding depression and outbreeding depression, and taxonomy, ecology, and

genetic diversity Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species, it ranges widely from the number of species to differences within species and can be attributed to the span of survival for a species. It is dis ...

of the source population. Reintroduced populations experience increased vulnerability to influences of

drift Drift or Drifts may refer to: Geography * Drift or ford (crossing) of a river * Drift, Kentucky, unincorporated community in the United States * In Cornwall, England: ** Drift, Cornwall, village ** Drift Reservoir, associated with the village ...

, selection, and

gene flow In population genetics, gene flow (also known as gene migration or geneflow and allele flow) is the transfer of genetic material from one population to another. If the rate of gene flow is high enough, then two populations will have equivalent a ...

evolutionary processes due to their small sizes, climatic and ecological differences between source and native habitats, and presence of other mating-compatible populations. If the species slated for reintroduction is rare in the wild, it is likely to have unusually low population numbers, and care should be taken to avoid inbreeding and inbreeding depression. Inbreeding can change the frequency of allele distribution in a population, and potentially result in a change to crucial genetic diversity. Additionally, outbreeding depression can occur if a reintroduced population can hybridize with existing populations in the wild, which can result in offspring with reduced fitness, and less adaptation to local conditions. To minimize both, practitioners should source for individuals in a way that captures as much genetic diversity as possible, and attempt to match source site conditions to local site conditions as much as possible. Capturing as much

as possible, measured as heterozygosity, is suggested in species reintroductions. Some protocols suggest sourcing approximately 30 individuals from a population will capture 95% of the genetic diversity. Maintaining genetic diversity in the recipient population is crucial to avoiding the loss of essential local adaptations, minimizing inbreeding depression, and maximizing fitness of the reintroduced population.

Ecological similarity

Plants or animals that undergo reintroduction may exhibit reduced fitness if they are not sufficiently adapted to local environmental conditions. Therefore, researchers should consider ecological and environmental similarity of source and recipient sites when selecting populations for reintroduction. Environmental factors to consider include climate and soil traits (pH, percent clay, silt and sand, percent combustion carbon, percent combustion nitrogen, concentration of Ca, Na, Mg, P, K). Historically, sourcing plant material for reintroductions has followed the rule "local is best," as the best way to preserve local adaptations, with individuals for reintroductions selected from the most geographically proximate population. However, geographic distance was shown in a

common garden experiment A transplant experiment, is an experiment to test the effect of environment by moving two species from their native environments into a common environment. The name was originally applied to experiments on plants, but is now equally applied to anim ...

to be an insufficient predictor of fitness. Additionally, projected climatic shifts induced by climate change have led to the development of new seed sourcing protocols that aim to source seeds that are best adapted to project climate conditions. Conservation agencies have developed seed transfer zones that serve as guidelines for how far plant material can be transported before it will perform poorly. Seed transfer zones take into account proximity, ecological conditions, and climatic conditions in order to predict how plant performance will vary from one zone to the next. A study of the reintroduction of '' Castilleja levisecta'' found that the source populations most physically near the reintroduction site performed the poorest in a field experiment, while those from the source population whose ecological conditions most closely matched the reintroduction site performed best, demonstrating the importance of matching the evolved adaptations of a population to the conditions at the reintroduction site.

Adaptation to captivity

Some reintroduction programs use plants or animals from captive populations to form a reintroduced population. When reintroducing individuals from a captive population to the wild, there is a risk that they have adapted to captivity due to differential selection of genotypes in captivity versus the wild. The genetic basis of this adaptation is selection of rare,

recessive In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and t ...

alleles that are deleterious in the wild but preferred in captivity. Consequently, animals adapted to captivity show reduced stress tolerance, increased tameness, and loss of local adaptations. Plants also can show adaptations to captivity through changes in drought tolerance, nutrient requirements, and seed dormancy requirements. Extent of adaptation is directly related to intensity of selection, genetic diversity, effective population size and number of generations in captivity. Characteristics selected for in captivity are overwhelmingly disadvantageous in the wild, so such adaptations can lead to reduced fitness following reintroduction. Reintroduction projects that introduce wild animals generally experience higher success rates than those that use captive-bred animals. Genetic adaptation to captivity can be minimized through management methods: by maximizing generation length and number of new individuals added to the captive population; minimizing effective population size, number of generations spent in captivity, and selection pressure; and reducing genetic diversity by fragmenting the population. For plants, minimizing adaptation to captivity is usually achieved by sourcing plant material from a seed bank, where individuals are preserved as wild-collected seeds, and have not had the chance to adapt to conditions in captivity. However, this method is only plausible for plants with seed dormancy.

Genetic trade-offs

In reintroductions from captivity, translocation of animals from captivity to the wild has implications for both captive and wild populations. Reintroduction of genetically valuable animals from captivity improves genetic diversity of reintroduced populations while depleting captive populations; conversely, genetically valuable captive-bred animals may be closely related to individuals in the wild and thus increase risk of inbreeding depression if reintroduced. Increasing genetic diversity is favored with removal of genetically overrepresented individuals from captive populations and addition of animals with low genetic relatedness to the wild. However, in practice, initial reintroduction of individuals with low genetic value to the captive population is recommended to allow for genetic assessment before translocation of valuable individuals.

Improving research techniques

A cooperative approach to reintroduction by ecologists and biologists could improve research techniques. For both preparation and monitoring of reintroductions, increasing contacts between academic population biologists and wildlife managers is encouraged within the Survival Species Commission and the IUCN. The IUCN states that a re-introduction requires a multidisciplinary approach involving a team of persons drawn from a variety of backgrounds. A survey by Wolf et al. in 1998 indicated that 64% of reintroduction projects have used subjective opinion to assess habitat quality. This means that most reintroduction evaluation has been based on human anecdotal evidence and not enough has been based on statistical findings. Seddon et al. (2007) suggest that researchers contemplating future reintroductions should specify goals, overall ecological purpose, and inherent technical and biological limitations of a given reintroduction, and planning and evaluation processes should incorporate both experimental and modeling approaches. Monitoring the health of individuals, as well as the survival, is important; both before and after the reintroduction. Intervention may be necessary if the situation proves unfavorable. Population dynamics models that integrate demographic parameters and behavioral data recorded in the field can lead to simulations and tests of a priori hypotheses. Using previous results to design further decisions and experiments is a central concept of adaptive management. In other words, learning by doing can help in future projects. Population ecologists should therefore collaborate with biologists, ecologists, and wildlife management to improve reintroduction programs.BGCI: The global network. Retrieved April 30, 2012 from http://www.bgci.org/ourwork/Ecosystems/

Genetic monitoring

For reintroduced populations to successfully establish and maximize reproductive fitness, practitioners should perform genetic tests to select which individuals will be the founders of reintroduced populations and to continue monitoring populations post-reintroduction. A number of methods are available to measure the genetic relatedness between and variation among individuals within populations. Common genetic diversity assessment tools include

microsatellite A microsatellite is a tract of repetitive DNA in which certain DNA motifs (ranging in length from one to six or more base pairs) are repeated, typically 5–50 times. Microsatellites occur at thousands of locations within an organism's genome. ...

markers,

mitochondrial DNA Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial D ...

analyses,

alloenzyme Alloenzymes (or also called allozymes) are variant forms of an enzyme which differ structurally but not functionally from other allozymes coded for by different alleles at the same locus. These are opposed to isozymes, which are enzymes that perfo ...

s, and amplified fragment length polymorphism markers. Post-reintroduction, genetic monitoring tools can be used to obtain data such as population abundance, effective population size, and population structure, and can also be used to identify instances of inbreeding within reintroduced populations or

hybridization Hybridization (or hybridisation) may refer to: *Hybridization (biology), the process of combining different varieties of organisms to create a hybrid *Orbital hybridization, in chemistry, the mixing of atomic orbitals into new hybrid orbitals *Nu ...

with existing populations that are genetically compatible. Long-term genetic monitoring is recommended post-reintroduction to track changes in genetic diversity of the reintroduced population and determine success of a reintroduction program. Adverse genetic changes such as loss of heterozygosity may indicate management intervention, such as population supplementation, is necessary for survival of the reintroduced population.

Re-introduction Specialist Group (RSG)

The RSG is a network of specialists whose aim is to combat the ongoing and massive loss of biodiversity by using re-introductions as a responsible tool for the management and restoration of biodiversity. It does this by actively developing and promoting sound inter-disciplinary scientific information, policy, and practice to establish viable wild populations in their natural habitats. The role of the RSG is to promote the re-establishment of viable populations in the wild of animals and plants. The need for this role was felt due to the increased demand from re-introduction practitioners, the global conservation community and increase in re-introduction projects worldwide. Increasing numbers of animal and plant species are becoming rare, or even extinct in the wild. In an attempt to re-establish populations, species can – in some instances – be re-introduced into an area, either through translocation from existing wild populations, or by re-introducing captive-bred animals or artificially propagated plants.

Reintroduction programs

Africa

* Addax in Morocco and Tunisia,

Chad Chad (; ar, تشاد , ; french: Tchad, ), officially the Republic of Chad, '; ) is a landlocked country at the crossroads of North and Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic ...

African bush elephant The African bush elephant (''Loxodonta africana'') is one of two extant African elephant species and one of three extant elephant species. It is the largest living terrestrial animal, with bulls reaching a shoulder height of up to and a body ...

into

Samara Private Game Reserve Samara Private Game Reserve is a 28,300 hectare private game reserve, located near Graaff-Reinet in the Eastern Cape, South Africa. Previously a network of 11 livestock farms, Samara was created in 1997 with the vision to restore the area to its ...

Eastern Cape The Eastern Cape is one of the provinces of South Africa. Its capital is Bhisho, but its two largest cities are East London and Gqeberha. The second largest province in the country (at 168,966 km2) after Northern Cape, it was formed in ...

, South Africa * African wild dog to Gorongosa National Park, Mozambique and Lekedi Park, Gabon (successful) * Black rhinoceros in Malawi, Zambia, Botswana,

Rwanda Rwanda (; rw, u Rwanda ), officially the Republic of Rwanda, is a landlocked country in the Great Rift Valley of Central Africa, where the African Great Lakes region and Southeast Africa converge. Located a few degrees south of the Equator ...

(successful) and Chad (ongoing). *

Ground pangolin The ground pangolin (''Smutsia temminckii''), also known as Temminck's pangolin, Cape pangolin or steppe pangolin, is one of four species of pangolins which can be found in Africa, and the only one in southern and eastern Africa. The animal was ...

into the

Phinda Private Game Reserve Phinda Private Game Reserve (), formerly known as Phinda Resource Reserve, is a private game reserve situated in KwaZulu-Natal, South Africa, between the Mkuze Game Reserve and the Greater St. Lucia Wetland Park. Designated in 1991, Phinda i ...

KwaZulu-Natal KwaZulu-Natal (, also referred to as KZN and known as "the garden province") is a province of South Africa that was created in 1994 when the Zulu bantustan of KwaZulu ("Place of the Zulu" in Zulu) and Natal Province were merged. It is locate ...

, South Africa *

Lion The lion (''Panthera leo'') is a large Felidae, cat of the genus ''Panthera'' native to Africa and India. It has a muscular, broad-chested body; short, rounded head; round ears; and a hairy tuft at the end of its tail. It is sexually dimorphi ...

to Akagera National Park of Rwanda and

Majete Wildlife Reserve Majete Wildlife Reserve is a nature reserve in southwestern Malawi, established as a protected area in 1955. The reserve's animal populations were decimated during the late 1970s and 1980s due to poaching and other human activities. Majete has been ...

and Liwonde National Park of Malawi *

Mandrill The mandrill (''Mandrillus sphinx'') is a large Old World monkey native to west central Africa. It is one of the most colorful mammals in the world, with red and blue skin on its face and posterior. The species is sexually dimorphic, as males ...

into Lékédi Park, Gabon * North African ostrich in Morocco, Nigeria, Niger and Tunisia (ongoing) * Plains zebra into Kitulo National Park in southern Tanzania and

Nsumbu National Park Nsumbu National Park (also called Sumbu) lies on the western shore of Lake Tanganyika near its southern extremity, in Zambia's Northern Province. It covers about 2000 km² and has some 80 km of lake shore including four bays (Kasaba, Ka ...

in northern Zambia * Scimitar oryx in

* Southern white rhinoceros in Kenya, Uganda and Zambia (successful) * South African cheetah in

Eswatini Eswatini ( ; ss, eSwatini ), officially the Kingdom of Eswatini and formerly named Swaziland ( ; officially renamed in 2018), is a landlocked country in Southern Africa. It is bordered by Mozambique to its northeast and South Africa to its no ...

and Malawi (successful) *

Spotted hyena The spotted hyena (''Crocuta crocuta''), also known as the laughing hyena, is a hyena species, currently classed as the sole extant member of the genus ''Crocuta'', native to sub-Saharan Africa. It is listed as being of least concern by the IUC ...

Zinave National Park The Zinave National Park ( or PNZ) is a protected area in Mabote District of Inhambane Province, Mozambique, created by decree on 26 June 1973. Land The park extends to the south of the Save River in Inhambane Province, covering an area of . I ...

, Mozambique * West African giraffe to

Gadabedji Reserve The Gadabedji Total Reserve (Réserve totale de Faune du Gadabedji) is a nature reserve in the central region of Niger. It is a Total Faunal Reserve IUCN type IV, covering some 76,000 hectares within the northern tip of the Maradi Region, just n ...

, Niger

Asia

* Amur leopard in Russia (planned) *

Asian black bear The Asian black bear (''Ursus thibetanus''), also known as the Asiatic black bear, moon bear and white-chested bear, is a medium-sized bear species native to Asia that is largely adapted to an arboreal lifestyle. It lives in the Himalayas, sout ...

in Jirisan National Park, South Korea (ongoing) * Asian elephant into Doi Pha Muang Wildlife Sanctuary, Thailand * Asiatic Lion Reintroduction Project of Asiatic lion to Kuno Wildlife Sanctuary from their only home presently in the world at Gir Forest National Park. Kuno Wildlife Sanctuary is the chosen site for re-introducing and establishing the world's second completely separate population of the wild free ranging Asiatic lions in the state of Madhya Pradesh. It was decided to re-introduce the Asiatic lion in

Kumbhalgarh Wildlife Sanctuary Kumbhalgarh Wildlife Sanctuary is located in the Rajsamand District of Rajasthan State in western India. It surrounds the Kumbhalgarh fortress and covers an area of . The sanctuary extends across the Aravalli Range, covering parts of Rajsamand ...

in Rajasthan. Some will be reintroduced in two locations in Gujarat. *

Bornean orangutan The Bornean orangutan (''Pongo pygmaeus'') is a species of orangutan endemic to the island of Borneo. Together with the Sumatran orangutan (''Pongo abelii'') and Tapanuli orangutan (''Pongo tapanuliensis''), it belongs to the only genus of great ...

in East Kalimantan, Indonesia *

Bukhara deer The Bactrian deer (''Cervus hanglu bactrianus''), also called the Bukhara deer, Bokhara deer, or Bactrian wapiti, is a lowland subspecies of Central Asian red deer native to Central Asia. It is similar in ecology to the related Yarkand deer (' ...

(subspecies of red deer) into

Altyn Emel National Park Altyn-Emel National Park ( kk, Алтынемел саябағы, ''Altynemel saiabağy'' ; rus, Алтын-Эмель национальный парк , ''Altyn-Emel' Natsional'nyy Park'') is a national park in Kazakhstan. It was created in 19 ...

in Kazakhstan and

Badai Tugai Nature Reserve The Badai Tugai Nature Reserve is located at the banks of the Amu Darya river in Uzbekistan. It was founded in 1971 on 6400 ha and is the only Nature Reserve in the republic of Karakalpakstan Karakalpakstan, / officially the Republic of Kar ...

in Uzbekistan *

Cheetah reintroduction in India Cheetah reintroduction in India involves the attempt to introduce and sustain a small population of Southeast African cheetah (''Acinonyx jubatus jubatus'', the nominate subspecies) in India more than 70 years after India's native subspecies, ...

is a project to reintroduce the cheetah in India. The

Asiatic cheetah The Asiatic cheetah (''Acinonyx jubatus venaticus'') is a critically endangered cheetah subspecies currently only surviving in Iran. It once occurred from the Arabian Peninsula and the Near East to the Caspian region, Transcaucasus, Kyzylkum D ...

became extinct in 1947 when Maharaja of Surguja hunted the last three in the state of Rewa in

central India Central India is a loosely defined geographical region of India. There is no clear official definition and various ones may be used. One common definition consists of the states of Chhattisgarh and Madhya Pradesh, which are included in alm ...

. It was officially declared extinct in 1952 by the Indian government. Plans are going on to reintroduce the cheetah to two site in Madhya Pradesh ( Kuno Wildlife Sanctuary and

Nauradehi Wildlife Sanctuary Nauradehi Wildlife Sanctuary, covering about , is the largest wildlife sanctuary of Madhya Pradesh state in India. This wildlife sanctuary is a part of 5500 km2 of forested landscape. It is located in the centre of the state covering parts of ...

) and in Rajasthan's

Shahgarh Landscape Shahgarh Landscape or Shahgarh Bulge Landscape is located in Jaiselmer District in Indian state of Rajasthan. This area is protected area for reintroduction of cheetah. The nearest city to this area is Jaiselmer. This area fences along the Indo ...

. Cheetahs are being acclimated to Kuno National Park. *

Chinese alligator The Chinese alligator (; ), also known as the Yangtze alligator (), China alligator, or historically the muddy dragon, is a crocodilian endemic to China. It and the American alligator (''A. mississippiensis'') are the only living species in the ...

into Yancheng Biosphere Reserve,

Jiangsu Province Jiangsu (; ; pinyin: Jiāngsū, alternatively romanized as Kiangsu or Chiangsu) is an eastern coastal province of the People's Republic of China. It is one of the leading provinces in finance, education, technology, and tourism, with its ca ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

* Crested ibis at Upo Wetland, South Korea and Sado,

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

* Gaur into Bandhavgarh National Park in Madhya Pradesh, India *

Gharial The gharial (''Gavialis gangeticus''), also known as gavial or fish-eating crocodile, is a crocodilian in the family Gavialidae and among the longest of all living crocodilians. Mature females are long, and males . Adult males have a distinct b ...

at the

Hastinapur Wildlife Sanctuary Hastinapur Wildlife Sanctuary is a protected area in the Gangetic plains of Uttar Pradesh, India. It was established in 1986 and covers across Meerut, Muzzafarnagar, Ghaziabad, Bijnor, Meerut and Amroha districts. This area has not enjoyed pro ...

in Uttar Pradesh, India * Indian rhinoceros in Pakistan (ongoing) and Dudhwa National Park in India and Jim Corbett National Park (planning) * Korean fox (subspecies of

red fox The red fox (''Vulpes vulpes'') is the largest of the true foxes and one of the most widely distributed members of the Order (biology), order Carnivora, being present across the entire Northern Hemisphere including most of North America, Europe ...

) in

Sobaeksan National Park Sobaeksan National Park ( ko, 소백산국립공원, 小白山國立公園) is located in the provinces of Chungcheongbuk-do and Gyeongsangbuk-do, South Korea. It was designated as the 18th national park in 1987. It is named after the mountain So ...

, South Korea (ongoing) *

Lar gibbon The lar gibbon (''Hylobates lar''), also known as the white-handed gibbon, is an endangered primate in the gibbon family, Hylobatidae. It is one of the better-known gibbons and is often kept in captivity. Taxonomy There are five subspecies of ...

to Phuket, Thailand * Oriental stork in South Korea *

Père David's deer The Père David's deer (''Elaphurus davidianus''), also known as the ''milu'' () or elaphure, is a species of deer native to the subtropical river valleys of China. It grazes mainly on grass and aquatic plants. It is the only extant member of ...

in China (successful) *

Persian leopard ''Panthera pardus tulliana'' is a leopard subspecies native to the Iranian Plateau and surrounding areas encompassing Turkey, the Caucasus, Azerbaijan, Georgia, Armenia, Iraq, Iran, Turkmenistan, Afghanistan and possibly Pakistan. Since 2016, i ...

European Russia European Russia (russian: Европейская Россия, russian: европейская часть России, label=none) is the western and most populated part of Russia. It is geographically situated in Europe, as opposed to the cou ...

(ongoing) * Pileated gibbon into the protected forests of the Angkor, Cambodia * Przewalski's horse in Mongolia (ongoing) *

Pygmy hog The pygmy hog (''Porcula salvania'') is the rarest species of pig in the world today, and is the only species in the genus ''Porcula''. It is also the smallest species of pig in the world, with its piglets being small enough to fit in one's pock ...

s into

Sonai Rupai Wildlife Sanctuary Sonai Rupai Wildlife Sanctuary is a protected area located in the state of Assam in India. This wildlife sanctuary covers 175 km2. It is located along the foothills of the Great Himalayan Range. The area was declared as a sanctuary in 1998. It ...

in Assam, India (successful) * Sarus cranes in Thailand (ongoing) * Short-tailed albatross in Japan (successful) * Siamese crocodile into Cát Tiên National Park of Vietnam *

Siberian Tiger Re-population Project The Siberian Tiger Introduction Project involves Species reintroduction, reestablishing populations of the Siberian tiger, also known as the Amur tiger, in their former range and also expanding their range by Species translocation, introducing th ...

was proposed in 2009 to reintroduce Siberian tigers back to their former lands and including the former ranges in Central Asia once inhabited by their closest relatives, the Caspian tiger. In 2010, two pairs of Siberian tigers, exchanged for

s to southwestern Russia, were set to be reintroduced in Iran's Miankaleh peninsula. Currently, the big cats (one of them had died) are being held in captivity in Eram zoo. Siberian tigers were also proposed to be reintroduced to a suitable habitat near the international river of Amu Darya in Central Asia and near the Ili River delta in Kazakhstan. A rewilding project at the Pleistocene Park, part of the re-population project was proposed back in 2005. * South China tiger - Captive tigers being re-wilded in

Laohu Valley Reserve The Laohu Valley Reserve (LVR) is a nature reserve located near Philippolis in the Free State and near Vanderkloof Dam in the Northern Cape of South Africa. It is a roughly 350-square-kilometre private reserve. It has been created with the aims ...

in the Free State province of South Africa under

Save China's Tigers Save China's Tigers (SCT) is an international charitable foundation based in Hong Kong, the United States, and the United Kingdom (Office in London) which aims to save the big cats of China from extinction. It focuses on the Chinese tigers (South ...

programme, will be eventually released back into the wilderness of

. *

Sumatran orangutan The Sumatran orangutan (''Pongo abelii'') is one of the three species of orangutans. Critically Endangered, and found only in the north of the Indonesian island of Sumatra, it is rarer than the Bornean orangutan but more common than the recent ...

at Bukit Tigapuluh National Park in

Jambi Jambi is a province of Indonesia. It is located on the east coast of central Sumatra and spans to the Barisan Mountains in the west. Its capital and largest city is Jambi. The province has a land area of 50,160.05 km2, and a sea area of 3, ...

and Jantho Pine Forest Nature Reserve in

Aceh Aceh ( ), officially the Aceh Province ( ace, Nanggroë Acèh; id, Provinsi Aceh) is the westernmost province of Indonesia. It is located on the northernmost of Sumatra island, with Banda Aceh being its capital and largest city. Granted a s ...

Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...

, Indonesia> *

Turkmenian kulan The Turkmenian kulan (''Equus hemionus kulan''), also called Transcaspian wild ass, Turkmenistani onager or simply the ', is a subspecies of onager (Asiatic wild ass) native to Central Asia. It was declared Endangered in 2016. The species's popu ...

in Kazakhstan (ongoing) and Uzbekistan (successful) * Water deer in Shanghai, China (successful) * Wild water buffalo in Chitwan National Park of Nepal and in

Kanha National Park Kanha Tiger Reserve, also known as Kanha–Kisli National Park, is one of the tiger reserves of India and the largest national park of the state of Madhya Pradesh. The present-day Kanha area is divided into two protected areas, Hallon and Banja ...

of Madhya Pradesh, India * ''

Magnolia sinica ''Magnolia sinica'' is a species of flowering plant in the family Magnoliaceae, native to southeast Yunnan Yunnan , () is a landlocked province in the southwest of the People's Republic of China. The province spans approximately and has ...

Europe

Alpine ibex The Alpine ibex (''Capra ibex''), also known as the steinbock, bouquetin, or simply ibex, is a species of wild goat that lives in the mountains of the European Alps. It is a sexually dimorphic species: males are larger and carry longer, curved h ...

in the

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

, Italian and

Swiss Swiss may refer to: * the adjectival form of Switzerland * Swiss people Places * Swiss, Missouri * Swiss, North Carolina *Swiss, West Virginia * Swiss, Wisconsin Other uses *Swiss-system tournament, in various games and sports *Swiss Internation ...

Alps (successful) *

Alpine marmot The alpine marmot (''Marmota marmota'') is a large ground-dwelling squirrel, from the genus of marmots. It is found in high numbers in mountainous areas of central and southern Europe, at heights between in the Alps, Carpathians, Tatras and No ...

in the Pyrenees, where it had been extirpated at end of the Pleistocene (successful) * Black-bellied hamster in Netherlands and Belgium (successful) * Black grouse to Derbyshire, England – (ongoing) * Chequered skipper butterfly to Northamptonshire, England - (ongoing) * Common crane to Somerset, England – (ongoing) *

Corncrake The corn crake, corncrake or landrail (''Crex crex'') is a bird in the rail family. It breeds in Europe and Asia as far east as western China, and migrates to Africa for the Northern Hemisphere's winter. It is a medium-sized crake with buff- ...

to Cambridgeshire, England – (ongoing) * Eurasian brown bear in the Alps (ongoing) and in the Pyrenees (ongoing) * Eurasian lynx in

Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...

(successful), the United Kingdom ( proposed) and other parts of Europe (ongoing) * European beaver in several countries in Europe (successful) * European bison in Poland, Belarus (successful), other parts of Europe (ongoing) and to the UK (proposed) *

European black vulture The cinereous vulture (''Aegypius monachus'') is a large raptor in the family Accipitridae and distributed through much of temperate Eurasia. It is also known as the black vulture, monk vulture and Eurasian black vulture. With a body length of , ...

in the Massif Central in France - (successful) * Heath fritillary butterfly to Essex, England– (successful) * Glanville fritillary butterfly to Somerset, England – (successful) * Goitered gazelle in protected areas of Vashlovani in Georgia - (ongoing) * Golden eagle in Ireland (ongoing) * Great bustard to

Salisbury Plain Salisbury Plain is a chalk plateau in the south western part of central southern England covering . It is part of a system of chalk downlands throughout eastern and southern England formed by the rocks of the Chalk Group and largely lies wi ...

, England – (ongoing) * Griffon vulture in the Massif Central, France (successful), Central

Apennines The Apennines or Apennine Mountains (; grc-gre, links=no, Ἀπέννινα ὄρη or Ἀπέννινον ὄρος; la, Appenninus or – a singular with plural meaning;''Apenninus'' (Greek or ) has the form of an adjective, which wou ...

, Italy, and Northern and Southern Israel (ongoing) * Iberian lynx in Portugal (ongoing) *

Lammergeier The bearded vulture (''Gypaetus barbatus''), also known as the lammergeier and ossifrage, is a very large bird of prey and the only member of the genus ''Gypaetus''. Traditionally considered an Old World vulture, it actually forms a separate mi ...

in the Alps (successful)

(successful) * Ladybird spider to

Arne RSPB reserve Arne RSPB reserve is a nature reserve and Site of Special Scientific Interest (SSSI) maintained by the RSPB and located in Dorset. It was notified as an SSSI in 1986 and the estuarine reedbeds within the site are designated as a national natur ...

in Dorset, England – (ongoing). *

Large blue The large blue (''Phengaris arion'') is a species of butterfly in the family Lycaenidae. The species was first defined in 1758 and first recorded in Britain in 1795. In 1979 the species became mostly extinct in Britain but has been successfully ...

butterfly in the South West of England – (successful and ongoing) * Lesser kestrel in Spain * Lesser white-fronted goose in

Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...

and Germany (ongoing) * Narrow-leaved cudweed * Northern bald ibis in Austria and Italy (ongoing) *

Northern goshawk The northern goshawk (; ''Accipiter gentilis'') is a species of medium-large bird of prey, raptor in the Family (biology), family Accipitridae, a family which also includes other extant diurnal raptors, such as eagles, buzzards and harrier (bird) ...

– the existing UK population is believed to be derived from a mixture of escaped falconers' birds and deliberate introductions – (successful) * Osprey to England and Wales – (successful) *

Peregrine falcon The peregrine falcon (''Falco peregrinus''), also known as the peregrine, and historically as the duck hawk in North America, is a Cosmopolitan distribution, cosmopolitan bird of prey (Bird of prey, raptor) in the family (biology), family Falco ...

in Germany, Poland,

and Norway *

Caucasus Biosphere Reserve The Western Caucasus is a western region of the Caucasus in Southern Russia, extending from the Black Sea to Mount Elbrus. World Heritage Site The Western Caucasus includes a natural UNESCO World Heritage Site comprising the extreme western e ...

* Pine marten in Wales - (ongoing) * Red kite in Ireland

Chiltern Hills The Chiltern Hills is a chalk escarpment in England. The area, northwest of London, covers stretching from Goring-on-Thames in the southwest to Hitchin in the northeast - across Oxfordshire, Buckinghamshire, Hertfordshire, and Bedfordshire. ...

, Black Isle, Northamptonshire,

Dumfries and Galloway Dumfries and Galloway ( sco, Dumfries an Gallowa; gd, Dùn Phrìs is Gall-Ghaidhealaibh) is one of 32 unitary council areas of Scotland and is located in the western Southern Uplands. It covers the counties of Scotland, historic counties of ...

, Yorkshire,

Perth and Kinross Perth and Kinross ( sco, Pairth an Kinross; gd, Peairt agus Ceann Rois) is one of the 32 council areas of Scotland and a Lieutenancy Area. It borders onto the Aberdeenshire, Angus, Argyll and Bute, Clackmannanshire, Dundee, Fife, Highland and S ...

and

Gateshead Gateshead () is a large town in northern England. It is on the River Tyne's southern bank, opposite Newcastle upon Tyne, Newcastle to which it is joined by seven bridges. The town contains the Gateshead Millennium Bridge, Millennium Bridge, Sage ...

– (successful) *

Red squirrel The red squirrel (''Sciurus vulgaris'') is a species of tree squirrel in the genus ''Sciurus'' common throughout Europe and Asia. The red squirrel is an arboreal, primarily herbivorous rodent. In Great Britain, Ireland, and in Italy numbers ...

to Anglesey, Wales – (successful and ongoing) * Scots pine to southern England – (unplanned, successful) *

Silver-washed fritillary The silver-washed fritillary (''Argynnis paphia'') is a common and variable butterfly found over much of the Palearctic realm – Algeria, Europe, temperate Asia, and Japan. Description The silver-washed fritillary butterfly is deep orange with ...

to Essex, England – (ongoing, locally successful) *

Western swamphen The western swamphen (known as Purple Swamphen) (''Porphyrio porphyrio'') is a swamphen in the rail family Rallidae, one of the six species of purple swamphen. From the French name ''talève sultane'', it is also known as the sultana bird. This ...

in the Mondego River basin, Portugal (successful) * White stork to France,

, the Netherlands, Belgium,

(all successful) and England (ongoing) * White-tailed eagle in Ireland (ongoing) and Hebrides, Scotland – (successful), England (ongoing) and Wales (planned – on hold while a suitable site is found) * Wild boar to several places in Britain – (accidental, successful)

Middle East

* Arabian oryx in the Sultanate of Oman (successful), United Arab Emirates (successful), Israel (successful) *

Kurdistan spotted newt ''Neurergus derjugini'', the Kurdistan newt, Kordestan newt, Derjugin's (Kordestan) mountain newt, or yellow-spotted mountain newt, is a species of salamander in the family Salamandridae. It is found in Kurdistan in western Iran and in northeaste ...

in Western Iran (successful) * North African ostrich in Israel (failure) * Nubian ibex in Israel (successful) * Persian fallow deer in Israel (successful) * Persian onager in Saudi Arabia (successful) * Red deer - A programme was announced in 2013 to reintroduce the red deer to Armenia. 4 males and 11 females of the species will be purchased and transported to a breeding centre at

Dilijan National Park Dilijan National Park is one of the four national parks of Armenia. Occupying an area of 240 km², it is located in the north-eastern Tavush Province of Armenia. It is known for its forest landscapes, rich biodiversity, medicinal mineral water ...

. The World Wildlife Fund Germany and

Orange Armenia Orange Armenia ( hy, Օրանժ Արմենիա) was the Armenian branch of telecommunications company Orange S.A. Orange S.A. (), formerly France Télécom S.A. (stylized as france telecom) is a French multinational telecommunications corpo ...

have provided the funds for the project. * Yarkon bleak fish in Israel (successful)

North America

* American bison to El Carmen Nature Reserve and

Janos Biosphere Reserve The Janos Biosphere Reserve ( es, Reserva de la Biosfera de Janos) is a nature reserve in Janos, Chihuahua, Mexico. It protects a prairie ecosystem best known for its recovering and reintroduced species most notably the herd of American bison (' ...

in Mexico,

Banff National Park Banff National Park is Canada's oldest National Parks of Canada, national park, established in 1885 as Rocky Mountains Park. Located in Alberta's Rockies, Alberta's Rocky Mountains, west of Calgary, Banff encompasses of mountainous terrain, wi ...

in Alberta * American flamingo to Anegada, British Virgin Islands (successful) *

Atlantic puffin The Atlantic puffin ('), also known as the common puffin, is a species of seabird in the auk family. It is the only puffin native to the Atlantic Ocean; two related species, the tufted puffin and the horned puffin is found in the northeastern ...

at Eastern Egg Rock Island in Maine *

Black-footed ferret The black-footed ferret (''Mustela nigripes''), also known as the American polecatHeptner, V. G. (Vladimir Georgievich); Nasimovich, A. A; Bannikov, Andrei Grigorovich; Hoffmann, Robert S. (2001)''Mammals of the Soviet Union''Volume: v. 2, pt. 1 ...

in Canada, United States and Mexico (only successful in U.S.) * Blanding's turtle in Canada * California condor in California and Mexico (ongoing) * Canada lynx to

New York New York most commonly refers to: * New York City, the most populous city in the United States, located in the state of New York * New York (state), a state in the northeastern United States New York may also refer to: Film and television * '' ...

(failure) * Bighorn sheep in Oregon (successful) * Black-tailed prairie dog in Arizona and New Mexico (successful) Fisher Reintroduction 2015 at Cispus Learning Center, 065

Fisher Reintroduction 2015 at Cispus Learning Center, 065

Fisher Fisher is an archaic term for a fisherman, revived as gender-neutral. Fisher, Fishers or The Fisher may also refer to: Places Australia *Division of Fisher, an electoral district in the Australian House of Representatives, in Queensland *Elect ...

in Washington state (successful) (ongoing) *

Bald eagle The bald eagle (''Haliaeetus leucocephalus'') is a bird of prey found in North America. A sea eagle, it has two known subspecies and forms a species pair with the white-tailed eagle (''Haliaeetus albicilla''), which occupies the same niche as ...

to Channel Islands National Park, California * Grey wolf to Yellowstone National Park in Wyoming (successful), Idaho and Montana * Musk ox in Alaska (United States) (successful) *

Red wolf The red wolf (''Canis rufus'') is a canine native to the southeastern United States. Its size is intermediate between the coyote (''Canis latrans'') and gray wolf (''Canis lupus''). The red wolf's taxonomic classification as being a separate s ...

in Eastern North Carolina (ongoing) * Whooping cranes, including migratory population in the Eastern United States and non-migratory population in Louisiana (ongoing) * Wild turkey in South Carolina * Sargent's cherry palm in Florida (successful)' * ''

Pediocactus knowltonii ''Pediocactus knowltonii'' is a rare species of cactus known by the common names Knowlton's miniature cactus, Knowlton's pincushion cactus, and Knowlton's minute cactus. Distribution and habitat It is endemic to San Juan County, New Mexico, in t ...

'' in New Mexico * '' Cordylanthus maritimus'' in Western United States * North American river otters in Missouri (successful) * Nēnē at Hawai'i Volcanoes National Park, Hawaii (ongoing) * Desert pupfish to Organ Pipe Cactus National Monument, Arizona *

Elk The elk (''Cervus canadensis''), also known as the wapiti, is one of the largest species within the deer family, Cervidae, and one of the largest terrestrial mammals in its native range of North America and Central and East Asia. The common ...

to eastern Kentucky, Great Smoky Mountains National Park, North Carolina and Tennessee (successful) and to New York (failure) *

Wood bison The wood bison (''Bison bison athabascae'') or mountain bison (often called the wood buffalo or mountain buffalo), is a distinct northern subspecies or ecotype of the American bison. Its original range included much of the boreal forest regions ...

in Alaska * Ridgway's hawk to areas in the Dominican Republic where it is extirpated * Blue-and-yellow macaw to Trinidad (successful) * Scarlet macaw to Palenque, Mexico * Geoffroy's spider monkey in

Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...

Oceans and Oceania

* Woylie in

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

(ongoing) *

Greater bilby The greater bilby (''Macrotis lagotis''), often referred to simply as the bilby since the lesser bilby (''Macrotis leucura'') became extinct in the 1950s, is an Australian species of nocturnal omnivorous animal in the order Peramelemorphia. Oth ...

in Arid Recovery Reserve, South Australia and other parts of

(successful) *

Allocasuarina portuensis ''Allocasuarina portuensis'', commonly known as the Nielsen Park she-oak, is an extremely rare plant growing in Sydney, Australia. Encountered as a shrub or small slender tree, up to tall, it has green drooping branchlets up to in length. It ...

in Australia *

Tunbridge buttercup Tunbridge may refer to the following places: * Tunbridge, Illinois, United States * Tunbridge, North Dakota, see Locations in the United States with an English name#North Dakota * Tunbridge, Tasmania, Australia * Tunbridge, Vermont, United States ...

in Tasmania * ''

Rutidosis leptorrhynchoides ''Rutidosis leptorrhynchoides'', the button wrinklewort, is a flowering plant in the family Asteraceae. Its natural distribution is southeastern Australia where its restricted to undisturbed grasslands and woodlands. As much of its original habi ...

'' in Australia * Eastern quoll in Australia (ongoing) * Numbat in other areas of Western Australia,

Scotia Sanctuary Scotia Sanctuary is a nature reserve in the south-western plains of New South Wales, Australia, adjacent to the border with South Australia. It is located in the Murray Mallee subregion of the Murray-Darling Depression Bioregion, south of the ...

(New South Wales), Yookamura Sanctuary (South Australia) *

North Island robin The North Island robin (''Petroica longipes'') is a species of Australasian robin endemic to the North Island of New Zealand. It is also known in Māori as the Toutouwai. It and the South Island robin (''P. australis'') of the South Island and S ...

Tiritiri Matangi Tiritiri Matangi Island is located in the Hauraki Gulf of New Zealand, east of the Whangaparaoa Peninsula in the North Island and north east of Auckland. The island is an open nature reserve managed by the Supporters of Tiritiri Matangi Incorp ...

, Auckland, New Zealand *

Tasmanian devil The Tasmanian devil (''Sarcophilus harrisii'') (palawa kani: purinina) is a carnivorous marsupial of the family Dasyuridae. Until recently, it was only found on the island state of Tasmania, but it has been reintroduced to New South Wales in ...

in mainland of Australia (ongoing) *

Toromiro ''Sophora toromiro'', commonly known as toromiro, is a species of flowering tree in the legume family, Fabaceae, that is endemic to Easter Island. History Heavy deforestation had eliminated most of the island's forests by the first half of the ...

to Easter Island

South America

* Andean condor in

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

* Giant anteater in Corrientes, Argentina * Giant otter to

Iberá Provincial Reserve The Iberá Provincial Reserve ( es, Reserva Provincial Iberá, from Guaraní ''ý berá'': "bright water") is a provincial protected area in the north-west of Corrientes Province, north-eastern Argentina. Established on 15 April 1983, it contains ...

, Argentina * Guanaco in central Argentina *

Jaguar The jaguar (''Panthera onca'') is a large cat species and the only living member of the genus '' Panthera'' native to the Americas. With a body length of up to and a weight of up to , it is the largest cat species in the Americas and the th ...

into

Iberá Wetlands The Iberá Wetlands ( es, Esteros del Iberá, from Guaraní ''ý berá'': "bright water") are a mix of swamps, bogs, stagnant lakes, lagoons, natural slough, and courses of water in the center and center-north of the . Iberá is one of the mos ...

, Argentina * Patagonian huemul into

Huilo Huilo Biological Reserve Huilo-Huilo Biological Reserve ( , Pronounced: ) is a private for profit natural reserve and ecotourism area in southern Chile. It is by the community of Neltume, Chile, Neltume along the international road to Hua Hum Pass near the border to Arg ...

in Chile * Red-and-green macaw to

, Argentina *

Vinaceous-breasted amazon The vinaceous-breasted amazon (''Amazona vinacea'') is a species of parrot in the family Psittacidae. It is found in Argentina, Brazil, and Paraguay. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical ...

Parque Nacional das Araucárias Parque is the Galician, Portuguese and Spanish word for "park", and may refer to: * Parque (TransMilenio), a metro station in Bogotá, Colombia * Parque (Lisbon Metro), in Portugal * Parque (Santurce), a subbarrio in San Juan, Puerto Rico * ...

, Santa Catarina, Brazil (ongoing)

References

External links

IUCN/SSC Re-introduction Specialist Group

* ttp://www.goldeneagle.ie/index.html Reintroduction of Golden Eagle to Ireland
BBC News release on Beaver reintroduction in England

Scottish Beavers Network - campaigning for Beaver reintroduction in Scotland

Reintroduction of Przewalski's Horse to Mongolia

Reintroduction of Great Bustard to England

* Reintroduction of endangered plant species in China
Dipteronia dyeriana, Magnolia odoratissima and M. aromaticaEuryodendron excelsum ChangBretschneidera sinensis Hemsl
{{Authority control Conservation biology